Operators
| OperatorPublicName | VOSA_PSVLicenseName | NOCCODE | |
|---|---|---|---|
| 1st Choice Transport Ltd | 1St Choice Transport Ltd | 1CTL | |
| 247 Taxis | 247T | ||
| 2 Way Transport | 2 Way Transport | 2WTR | |
| 3D Coaches | Peter Kermeen & Elaine Fletcher | 3DCO | |
| Five Star International Travel | Philip Riley | 5STR | |
| Highland Airways | Highland Airways | 8H | |
| Arriva Trains Wales | Arriva Uk Trains Limited | =AW | |
| c2c | National Express Group | =CC | |
| Chiltern Railways | Arriva Uk Trains Limited | =CH | |
| Caledonian Sleeper | Caledonian Sleeper | =CS | |
| East Midlands Trains | East Midlands Trains | =EM | |
| Eurostar | Eurostar International Ltd | =ES | |
| First Capital Connect | First | =FC | |
| Grand Central | Arriva Uk Trains Limited | =GC | |
| Great Northern | Great Northern | =GN | |
| London North Eastern Railway | Intercity Railways Limited | =GR | |
| Great Western Railway | FirstGroup | =GW | |
| Gatwick Express | Govia | =GX | |
| Heathrow Connect | Heathrow Airport Holdings/FirstGroup | =HC | |
| Hull Trains | FirstGroup | =HT | |
| Heathrow Express | Heathrow Airport Holdings/FirstGroup | =HX | |
| Island Line | Island Line | =IL | |
| Greater Anglia | Abellio | =LE | |
| West Midlands Trains | Govia | =LM | |
| London Overground | Transport for London | =LO | |
| Merseyrail | Serco-Abellio | =ME | |
| Northern | Serco-Abellio | =NT | |
| North Yorkshire Moors Railway | North York Moors Historical Railway Trust Ltd | =NY | |
| Southeastern | Govia | =SE | |
| Southern | Govia | =SN | |
| ScotRail | Abellio | =SR | |
| South Western Railway | South West Trains | =SW | |
| Stansted Express | Abellio Greater Anglia | =SX | |
| Thameslink | Thameslink | =TL | |
| TransPennine Express | FirstGroup/Keolis | =TP | |
| Virgin Trains | Virgin Trains | =VT | |
| West Midlands Railway | =WM | ||
| West Coast Railways | West Coast Railway Company Limited | =WR | |
| Wrexham & Shropshire | Arriva Uk Trains Limited | =WS | |
| CrossCountry | Arriva Uk Trains Limited | =XC | |
| TfL Rail | Crossrail | =XR | |
| A.1.A.Travel | A1A Ltd | A1AT | |
| A1 Cars & Minibuses | Mohammed Khan | A1CM | |
| A1 Coaches | A1 Coaches | A1CO | |
| A1 Coaches | A1 Minibus & Coach Services Ltd | A1CS | |
| A1 MiniCoaches of Brierfield | Rubina Bano Khan | A1MC | |
| A1 Services | A1 Service Ltd | A1SV | |
| A2B Cars (Maesteg) | Robert Bayford Williams | A2BC | |
| A2B Bus and Coach | A2BR | ||
| A2B Taxis | A2B Newquay Travel Ltd | A2BS | |
| A2B Express Travel | Donald William Beresford | A2BT | |
| A2B Travel | A2B Travel (Uk) Ltd | A2BV | |
| Alton 8s | A8TX | ||
| B&B Taxis | B&B Taxis | AABT | |
| The A & M Group (AAMG) | Spangap Ltd | AAMG | |
| A & P Travel | A & P Travel Ltd | AAPT | |
| A & S Coaches | A & S Coaches | AASC | |
| AA Services | Aa Services Ltd | AASV | |
| A A Travel (Cumbria) Limited | A A Travel (Cumbria) Limited | AATR | |
| A & A Coach Travel (Yorkshire) | Alexandra Cunningham | AATV | |
| Air Berlin | Etihad Airways | AB | |
| Abacab Coaches | Christopher David Jones & Denise Jones | ABAC | |
| Abacus Coaches | David Thomas Cooke | ABAS | |
| Abbotts of Leeming | Clifford George Abbott & James Matthew Abbott | ABBL | |
| Abbey Cars (Hereford) | Edward Clive Gillanders | ABBS | |
| Abbey Luxury Travel | Abbey Luxury Travel | ABBY | |
| A B C Coach | A B C Coach Limited | ABCC | |
| Argyll & Bute Council Ferries | Argyll & Bute Council Ferries | ABCF | |
| Abbey Coaches (Midlands) | Abbey Coaches (Midlands) Ltd | ABCM | |
| airportbycoach (operated by Excel Coaches) | Excel Passenger Logistics Ltd | ABCO | |
| ABC Travel | A B C Travel (Castle Douglas) Ltd | ABCT | |
| Abbey Coachways Ltd | Abbey Coachways Ltd | ABCW | |
| A & J Ballantyne | John Ballantyne & Audrey Ballantyne | ABLL | |
| Abellio London | Abellio London Ltd | ABLO | |
| Aberfoyle Motors/Coaches | Aberfoyle Motors Ltd | ABMT | |
| Avon Buses | Avon Buses Ltd | ABNW | |
| A B Phillips | Alun Bowen Phillips | ABPH | |
| Abacus Private Hire | Abacus Private Hire | ABPV | |
| Abellio Surrey | Abellio West London Ltd | ABSU | |
| Abbey Taxis | Abbey Taxis | ABTA | |
| ABC Buses | ABC Buses | ABTB | |
| ABUS | Alan James Peters | ABUS | |
| A-B Taxis | A-B Taxis | ABXT | |
| Abbey Coaches | Abbey Coaches (Darwen) Ltd | ABYD | |
| A C Aldis and Company | A C Aldis & Co Ltd | ACAC | |
| AirCoach | Aircoach Limited | ACAH | |
| Ace Cars | Ace Cars | ACAS | |
| A & C Coaches | William Craig Cowie | ACCO | |
| Access Anyone | Access Anyone Ltd | ACCS | |
| Arun Community Bus | Arun Community Bus | ACCT | |
| Accrington & Hyndburn Taxis | Accrington & Hyndburn Taxis | ACCX | |
| ACE PRIVATE HIRE & MINIBusES | ACE PRIVATE HIRE & MINIBusES | ACEP | |
| Ace Travel | Ace Travel | ACER | |
| Ace Travel | Andrew Mclean | ACET | |
| Atcost Hire | Atcost Hire | ACHR | |
| Arleen Coaches | ACHS | ||
| Acklams Coaches | Acklams Coaches Ltd | ACKC | |
| ABC Coaches Ltd (Stoke on Trent) | Abc Coaches (2002) Ltd | ACLT | |
| ACL Travel (Weston super Mare) | Matthew Bowden & Wayne Jones | ACLV | |
| Aristacars Ltd | Aristacars Ltd | ACLX | |
| Acme Transport Services | Acme Bus Co Ltd | ACME | |
| Acorn of Tamworth | Acorn Coach And Minibus Hire Limited | ACMH | |
| Morse Coaches | A C Morse Ltd | ACML | |
| Airport Connect | Airport Connect | ACON | |
| Acorn Taxis (Bristol) | ACOR | ||
| Airport CarParkz (in association with Arriva the Shires) | Airport CarParkz (in association with Arriva the Shires) | ACPZ | |
| Acorn Travel (Nottingham) | Desmond Herbert King & Madeline J King | ACRN | |
| Astra Coach Travel | Astra Coach Travel Ltd | ACTL | |
| Accessible Caring Transport | Accessible Caring Tranpsort | ACTR | |
| Acacia Taxis | Acacia Taxis | ACTS | |
| Arriva Wales | Arriva Cymru Ltd | ACYM | |
| Adams Travel (Manchester) | Jonathan Peter Monk | ADAM | |
| ADAPT North East | ADAPT North East | ADAP | |
| Aldborough Community Bus | Aldborough Community Bus | ADCB | |
| Addison of Callendar | Gordon Prentice Addison | ADDI | |
| Addlethorpe Mini Buses | Darryl Joseph Richardson | ADDL | |
| Addison Travel | Anthony Martin Foye | ADDT | |
| Arriva Derby | Arriva Midlands North Ltd | ADER | |
| Adeys Taxis | Neil Francis Holder & Nigel Mark Holder | ADEY | |
| Club Class Travel | Alfred Dale & Maureen Dale | ADMD | |
| AD'RAINS PSV | Adrian Karl Griffiths | ADPS | |
| Bubble Travel | Bubble Travel Ltd | ADST | |
| Advent Travel | James Kirk Cumming | ADVN | |
| Ace Travel | Susan Margaret Freer | AETR | |
| Air France | Air-France KLM | AF | |
| Arriva Midlands | Arriva Fox County Ltd | AFCL | |
| Aberfeldy Motor Services | John Stewart | AFCM | |
| Ashford Luxury Coaches | Ashford Luxury Coaches (Middx) Ltd | AFDC | |
| AF Irvine | Andrew Ralston Irvine & Partners | AFIV | |
| Ashfield Leisure Transport | David Frederick Riley | AFLD | |
| Alec Finn Transport | AFTR | ||
| A & A Travel | A & A Travel | AGAT | |
| Applegates Coaches | Edward Frank Applegate | AGCO | |
| A & G Minibuses | Allan Robinson & Gregory Ronald Cobb | AGMB | |
| AGS Taxis | AGS Taxis | AGST | |
| Age UK | Age UK | AGUK | |
| MacLennan Coaches | MacLennan Coaches Ltd | AIMC | |
| Ainsdale Transport/Coaches (Oldham) | Stephen Garforth | AINS | |
| Aintree Coachlines | John Cherry | AINT | |
| the airline | The City Of Oxford Motor Services Ltd | AIRL | |
| Aitken Island Travel | John Antony Aitken | AITR | |
| Andybus & Coach Ltd | Andybus & Coach Limited | AJCL | |
| A & J Taxis | A & J Taxis | AJTX | |
| A J Express | A J Express | AJXS | |
| David Atkinson (Halifax) | David Atkinson & Peter Graham Hillam | AKIN | |
| Anthony Kane Taxis | Anthony Kane Taxi Services | AKNT | |
| Arriva Kent and Surrey | Arriva Kent & Surrey Ltd | AKSS | |
| A K Travel Ltd | A K Travel Ltd | AKTL | |
| AK Transport | Joseph Keith & Andrea Jem Watt | AKTS | |
| Allan and Black | Andrew C Brown & Partners | ALBL | |
| Alba Travel | Alba Travel Ltd | ALBT | |
| A-line Coaches (Coventry) | B Haywood & K Prosser | ALCC | |
| A-line Coaches | David Charles Annis & Leslie Brian Annis | ALCG | |
| A S Coaches | Alpha Bus & Coach Ltd | ALCO | |
| Arnold Liddell Coaches (Bristol) | Michael Liddell | ALDC | |
| Alda's Minibus and Taxis | Alastair Ferguson | ALDX | |
| Algar Travel | Algar Travel Ltd | ALGA | |
| ALC Travel Service of Coventry | A-Line Coaches Ltd | ALIC | |
| Arriva North West | Arriva Liverpool Ltd | ALIV | |
| Allens (Kent) | Allens (Kent) Ltd | ALKN | |
| Allander Travel (Glasgow) | Allander Coaches Ltd | ALLN | |
| Alastair MacDonald & Sons | Alastair Macdonald | ALMS | |
| A Line (Birmingham) | A-Line Buses Limited | ALNE | |
| Arriva London North | Arriva London North Ltd | ALNO | |
| Airlynx | Airlynx Limited | ALNX | |
| Alpha Coaches | Raymond Stanley Borkowski | ALPA | |
| Alun Bowen Phillips | Alun Bowen Phillips | ALPH | |
| Alpine | Hughes Bros (Llanrwst & Trefriw) Ltd | ALPI | |
| Al's Coaches | Als Coaches Ltd | ALSC | |
| Arriva London South | Arriva London South Ltd | ALSO | |
| A Line Travel | Daniel Richard Tweedie | ALTR | |
| Alton Towers Transport | Alton Towers Resort Operations Ltd | ALTT | |
| A MacDonald | AMAC | ||
| Arriva North West | Arriva Manchester Ltd | AMAN | |
| Amber Coaches | Amber Coaches Ltd | AMBC | |
| Acorn Coach & Mini Bus Hire | Rubensaat Carl Martin & Levick Jill | AMBH | |
| Ambassador Travel | Ambassador Travel (Anglia) Ltd | AMBS | |
| Alasdair Macdonald | Alasdair Macdonald | AMDD | |
| Flexibus | Spangap Ltd | AMGR | |
| Arriva Midlands | Arriva Midlands Ltd | AMID | |
| AMK | Amk Chauffeur Drive Ltd | AMKC | |
| Angus MacKenzie | Angus Mackenzie | AMKZ | |
| The A & M Group (AMMG) | Spangap Ltd | AMMG | |
| Alex Milne | Alex Milne & Partners | AMNE | |
| Arriva Midlands | Arriva Midlands North Ltd | AMNO | |
| AM PM Travel Ltd | Am Pm Travel Limited | AMPM | |
| Arriva North West | Arriva Merseyside Ltd | AMSY | |
| Arriva Kent and Surrey | Arriva Kent Thameside Ltd | AMTM | |
| Arriva Medway Towns | Arriva Kent Thameside Ltd | AMTN | |
| Amvale | Amvale Ltd | AMVA | |
| Aberfan and Merthyr Vale Youth and Community Project | David Philip Evans | AMYC | |
| Travel Royall | Amza Ltd | AMZL | |
| Annes Executive Coaches | Annes Executive Coaches | ANCO | |
| A and B Coaches | A and B Coaches | ANDB | |
| Andrews Coaches | David James Scandle | ANDC | |
| Andersons of Langholm | Ian Richard Anderson | ANDL | |
| Arriva North East | Arriva Durham County Ltd | ANEA | |
| Anglian Bus | Anglian Bus Ltd | ANGL | |
| Anita's Coaches | Anitas Coach & Minibus Hire Ltd | ANIT | |
| Andrew's | Andrew G S Morrison | ANRW | |
| Phil Anslow Travel | Philip Anslow | ANSL | |
| Anthony's Coaches (Darwen) | Anthony Bachelor | ANTC | |
| Andrews of Tideswell | Andrews Of Tideswell Ltd | ANTR | |
| Anthony's Travel | Anthony Bamber & Partners | ANTT | |
| Arriva North East | Arriva Northumbria Ltd | ANUM | |
| Arriva North West | Arriva North West Ltd | ANWE | |
| A1 Coaches | A1 Luxury Coaches Ltd | AOLC | |
| Manchester Airport Operations | Manchester Airport Plc | AOSV | |
| AOT Travel | Michael Rogers | AOTC | |
| Apollo 8 Travel (Cumbria) | Apollo 8 Travel (Cumbria) | AP8T | |
| was sxconnect | was sxconnect | APBB | |
| Airport Bus Express | APBX | ||
| APCOA Parking (UK) Ltd | APCOA Parking (UK) Ltd | APCA | |
| A & P Coaches | A & P Travel Ltd | APCO | |
| APL Travel | A P L Travel Ltd | APLT | |
| Airparks Services | Airparks Management Ltd | APSS | |
| AP Travel Ltd | Ann Louise Phillips | APTR | |
| Polperro Shuttle and Minibus | Ann Patricia Wright & Partners | APWA | |
| Aquitaine Travel | Aquitaine Travel | AQUI | |
| Arriva Beds and Bucks | ARBB | ||
| Arrow Bus | Arrow Bus | ARBU | |
| Arnolds Coaches | Arnolds Coaches | ARCO | |
| Archway Travel | Joan Archer & Michael Roger Archer | ARCT | |
| Ardnamurchan Charters | Ardnamurchan Charters | ARDC | |
| Ardlui Hotel | Ardlui Hotel | ARDS | |
| Arriva North East | Arriva Durham County Ltd | ARDU | |
| Alston Road Garage | Ian Roderick Tallentire & Ruth Christine Tallentire | ARGA | |
| Arriva Herts and Essex | ARHE | ||
| Air Line Connections | Rollinson Safeway Ltd | ARIL | |
| Arisaig Marine | Arisaig Marine | ARIS | |
| Armchair (part of Westbus) | Westbus Coach Services Ltd | ARMC | |
| Armstrong Coaches (Brampton) | James Derek Armstrong | ARMS | |
| Arnold Shaw Coaches | Arnold Shaw Coaches | ARNS | |
| Anthony Rossall | Anthony Rossall | AROS | |
| Arrowebrook Coaches | Arrowebrook Coaches Ltd | ARRO | |
| Bus Replacement Services for Rail | Arriva Uk Trains Limited | ARRV | |
| Arriva London North | Arriva London North Ltd | ARVA | |
| Arvonia Coaches (Caernarfon) | Arvonia Coaches Ltd | ARVO | |
| Arrow Taxi | Arrow Taxis Essex Limited | ARWT | |
| Ahmed Saeed Aslam | Ahmed Saeed Aslam | ASAS | |
| Bus2 | Abellio Surrey Ltd | ASB2 | |
| Arriva Southern Counties | Arriva Kent & Surrey Ltd | ASCN | |
| A S Coaches (Harrogate) | Amanda Susan Burton & Steven James Burton | ASCO | |
| Ashbourne Community Transport | Ashbourne Community Transport | ASCT | |
| Arriva Scotland West | Arriva Scotland West Ltd | ASCW | |
| ASD Coaches | Ajit Singh Dosanjh | ASDC | |
| Arriva the Shires | Arriva The Shires Ltd | ASES | |
| Ashley Travel | Ashley Travel Ltd | ASHL | |
| Ashcroft Travel | Ashcroft Travel Ltd | ASHT | |
| Amberley & Slindon Community Bus | Amberley & Slindon Community Bus | ASLN | |
| Ashley Travel (Minibuses) Ltd | ASLT | ||
| Arriva Southend | Arriva Kent Thameside Ltd | ASOU | |
| Astons Coaches | Astons Coaches Ltd | ASTC | |
| Millers Citax Ltd | Millers Citax Ltd | ASTM | |
| Astoria Coaches | Kenneth T Martin | ASTO | |
| Astley Coaches | David Robertson | ASTP | |
| A-Star bus | Michael Dean Wear | ASTR | |
| Arriva Surrey & West Sussex | Arriva Kent & Surrey Ltd | ASWS | |
| ATAX (Wrexham) | Michael Thomas Jones | ATAX | |
| A T Brown (Coaches) Ltd (Telford) | A T Brown (Coaches) Ltd | ATBL | |
| Atbus | Atbus Ltd | ATBU | |
| A2B Taxis Brechin | A2B Taxis Brechin | ATBX | |
| A Touch of Class @ TLC Ltd | A Touch of Class @ TLC Ltd | ATCL | |
| AT Coaches | Michael Crawley | ATCS | |
| Andover Taxis | ATDA | ||
| All The Fours | All The Fours Inc | ATFS | |
| Atlantic Travel GB | Atlantic Travel (GB) Limited | ATGB | |
| Altham Cars | Altham Cars | ATHC | |
| Atkinson Coaches | David Atkinson & Frederick David Atkinson | ATKI | |
| BK Marine | BK Marine | ATLF | |
| Atlantic Holidays | Atlantic Holidays | ATLH | |
| Ace Travel | Ace Travel (North West) Ltd | ATRN | |
| Ace Taxis | Ace Taxis | ATSX | |
| A Trip in Time | A Trip In Time Ltd | ATTM | |
| ATTAIN Systems (Midlands) Ltd | Attain Travel Ltd | ATTS | |
| Atwest | ATWE | ||
| S M Atwell | S M Atwell | ATWL | |
| A2Z Travel UK Ltd | A2Z Travel UK Ltd | ATZT | |
| Autopass Agencies Travel Services Ltd | Autopass Agencies Travel Services Ltd | AUPA | |
| Austin Passenger Services | Austin Passenger Services | AUPS | |
| Austin Coach Travel | John Barry Austin & Douglas Austin | AUST | |
| Autocar Bus & Coach Services | Autocar Bus & Coach Services Ltd | AUTO | |
| Avacab | Avacab Ltd | AVAC | |
| Arriva Cheshire | Arriva Cheshire | AVCH | |
| Arriva London | Arriva London South Ltd | AVLO | |
| Axe Valley Mini-Travel | Frances May Searle | AVMT | |
| Avon Valley Travel Ltd | Avon Valley Travel Ltd | AVNV | |
| Avondale Coaches | Avondale Coaches Ltd | AVOD | |
| Avon Coaches | L W Smith & G Lewis | AVON | |
| Avro and Elm Park Coaches | Brian Roomes | AVRO | |
| Acorn Travel (Fishguard) | Acorn Travel Ltd | AVTV | |
| Original London Sightseeing Tour | The Original London Sightseeing Tour Ltd | AWAN | |
| Awayadays | David Wain Mcmaster | AWAY | |
| Awe Service Station | Angus Douglas | AWES | |
| Axe Vale Coaches | Colin Paul Bailey & Partners | AXVC | |
| Aydon's Travel Services (Doncaster) | Michael Aydon | AYDN | |
| Marett's Chariots | Afsc Limited | AYLM | |
| Ayrways Coaches | Ayrways Coach Travel Ltd | AYRC | |
| Aztecbird (Leeds) | Aztecbird (Leeds) | AZBD | |
| British Airways | British Airways | BA | |
| Gatwick Airport inter-terminal Shuttle | Gatwick Airport inter-terminal Shuttle | BAAG | |
| Stansted Airport Hotel Shuttle | Stansted Airport Hotel Shuttle | BAAS | |
| Barry's Coaches (Weymouth) | Barry's Coaches (Weymouth) | BACO | |
| Battle Area Community Transport | Battle Area Community Transport | BACT | |
| Bagnalls | Central Travel (Woodville) Ltd | BAGN | |
| Bains Coaches | Douglas Bain | BAIN | |
| Guideissue Ltd (Stoke on Trent) | Guideissue Ltd | BAKE | |
| Bala Lake Railway | Bala Lake Railway | BALA | |
| Banga Buses | Rajinder Banga | BANG | |
| Barney's Coaches (Pembroke) | Richard Lewis | BANY | |
| Barnes Coaches | Barnes Coaches Ltd | BARN | |
| Battersby Silver Grey Coaches | Harrisons Coaches (Morecambe) Ltd | BASG | |
| Bassi Travel Ltd | Bassi Travel Ltd | BASI | |
| Bassi Travel | Huddersfield Coach Hire Ltd | BASS | |
| Bexley Accessible Transport | Bexley Accessible Transport | BATS | |
| Baxenden Private Hire | Baxenden Private Hire | BAXP | |
| Baynes Taxis | Nigel Geoffrey Baynes | BAYX | |
| Bluebird Bus (Manchester) | Michael Thomas Gregory Dunstan | BBAC | |
| Globe Holidays | Globe Holidays Ltd | BBCG | |
| Bath Bus Company | Bath Bus Co Ltd | BBCL | |
| Warners | Warners | BBCO | |
| Blue Bus | Blue Bus & Coach Services Ltd | BBCS | |
| Bungay & Beccles Community Transport | Bungay & Beccles Community Transport | BBCT | |
| Burnbrae Garage | Stewart Colin Robertson & Partners | BBGG | |
| Baby Bluestar | Solent Blue Line Limited | BBLU | |
| Baileys Buses Portsmouth | BBPT | ||
| Buchanan Bros | John A Buchanan & Chrisstia F Buchanan | BBRS | |
| Bluebell Railway | Bluebell Railway | BBRW | |
| Banga Buses | Rajinder Banga | BBSR | |
| Broons Buses & Taxis | J & P Brown & Son Ltd | BBTX | |
| B Cabs | Brian Dobinson | BCAB | |
| Bear Cross Bus | BCBU | ||
| Barnard Castle Coaches | Alan Burrell & Sandra Burrell | BCCO | |
| Bishop's Castle Dial a Ride | Bishop's Castle Dial a Ride | BCDR | |
| Bains Chauffeur Drive | Wilma A Bain | BCHD | |
| Autumn Travel Ltd | Autumn Travel Ltd | BCHT | |
| Bowmans Coaches (Mull) | Bowmans Coaches (Mull) Ltd | BCLM | |
| Braintree Community Transport | Braintree Community Transport | BCMT | |
| Bakers Coaches | J N Baker Ltd | BCOA | |
| Briggs Coaches | William George Briggs | BCOL | |
| Barrys Cars | Barrys Cars Limited | BCRS | |
| Berkley Coach & Travel | Berkley Coach & Travel | BCTV | |
| bmi regional | British Midland Regional Limited | BD | |
| Bedford Borough Council | Bedford Borough Council | BDBC | |
| Bakers Dolphin | J N Baker Ltd | BDOL | |
| Borderbus | Borderbus Ltd | BDRB | |
| Daytripper Coaches | John Barry Leyland | BDTC | |
| Basildon District Volunteer Carers | Basildon District Volunteer Carers | BDVC | |
| The Border Villager (Wooler) | Gavin Knox | BDVG | |
| FlyBE | Flybe Group PLC | BE | |
| Bear Buses | Glenn Neville Massiah | BEAR | |
| Beaufort Minibuses | Beaufort Mini Buses & Taxis Limited | BEAU | |
| Beaver Bus | Christine Mcdonald & John Mcdonald | BEAV | |
| Bakewell and Eyam Community Transport | Bakewell and Eyam Community Transport | BECT | |
| Beadles | Beadles | BEDL | |
| Beestons | Beestons (Hadleigh) Ltd | BEES | |
| Bellamy Coaches | Bellamy Coaches Ltd | BELM | |
| Bell and Sons Coaches | Bell and Sons Coaches | BELS | |
| Bennetts Travel | Bennetts Travel (Cranberry) Ltd | BENC | |
| Berwyn | Brian Japheth | BERW | |
| Best Bus & Coach Ltd | Best Bus & Coach Ltd | BEST | |
| Beta Buses | Beta Buses Ltd | BETA | |
| Buses Excetera | BETC Ltd | BETC | |
| Belle Vue Coaches | Belle Vue (Manchester) Ltd | BEVC | |
| Bexhill Community Bus | Bexhill Community Bus | BEXB | |
| Buses Excetera | Croydon Coaches UK Limited | BEXC | |
| Bristol Ferry Boat Company | Bristol Ferry Boat Company | BFBC | |
| Belfitt's Mini-Coach Hire | R J Belfitt Mini Bus Hire Ltd | BFMC | |
| Big Green Bus Company | Big Green Bus Company Ltd | BGBC | |
| Birmingham Community Transport | Birmingham Community Transport | BGCT | |
| Blagdon Lioness Coaches | Blagdon Lioness Coaches Ltd | BGLC | |
| Bretherton Gold Line Tours | Brethertons Gold Line Tours Ltd | BGLT | |
| Ben George Travel | Ben George Travel Ltd | BGTV | |
| New Bharat Coaches (Southall | London) | BHAT | |
| Brighton & Hove Bus and Coach Company | Brighton & Hove Bus & Coach Co Ltd | BHBC | |
| Air-Rail Link | Birmingham International Airport Limited | BHXL | |
| Brownsea Island Ferries Ltd | Brownsea Island Ferries Ltd | BIFL | |
| Bigfield's Coaches | Henry Charles Grootveldt | BIGC | |
| Billies Coaches Ltd (Rotherham) | Billies Coaches Ltd | BILC | |
| William Morrison | William Morrison | BIMM | |
| Biotravel Ltd | Biotravel Ltd | BIOT | |
| Blue Iris Coaches | Tarhum Ltd | BIRS | |
| Birtles Mini Coaches | Accessassist Ltd | BIRT | |
| Brian Jones Coaches | Brian Michael Jones | BJCO | |
| Brodyr James | Brodyr James Cyfyngedig | BJMS | |
| B & J Travel | B & J Travel Ltd | BJTR | |
| Bakers (Liskeard) | Kenneth Edward Baker & Partners | BKER | |
| BusKing Ltd | Busking Ltd | BKNG | |
| Bakers Commercial Services | Bakers Commercial Services Ltd | BKRC | |
| Brecks International | Stuart George Ulph | BKSI | |
| Blackpool Transport | Blackpool Transport Services Ltd | BLAC | |
| Blackpool Coach Hire | BLCK | ||
| Belle Coaches | B R Shreeve And Sons Ltd | BLCO | |
| Black Cat Travel | Black Cat Travel | BLCT | |
| Bayliss Executive Travel | Bayliss Executive Travel Ltd | BLET | |
| Derrick Ball Coaches (St Helens) | Derrick Ball | BLLS | |
| Blackburn Private Hire | BLPH | ||
| Bells Coaches (Newcastle upon Tyne) | T W Bell (Belsay) Ltd | BLSC | |
| Brightlingsea Ferry Services | Brightlingsea Ferry Services | BLSF | |
| B L Travel | B L Travel (Yorkshire) Ltd | BLTR | |
| Boultons of Shropshire | Boultons of Shropshire | BLTS | |
| Blueline Coaches And Taxis | Christopher Peter Carr | BLTX | |
| Blue Bus (Lancashire) | Rojay Services Ltd | BLUB | |
| Blue Bus | Blue Bus Ltd | BLUE | |
| Bluestar | Solent Blue Line Limited | BLUS | |
| Black & White Coaches | Thomas Anelay | BLWC | |
| Bebbington Mini Coaches | Bebbington Mini Coaches | BMCO | |
| Bentham Development Trust | Bentham Development Trust | BMCT | |
| Burghfield Minicoaches | Burghfield Mini Coaches Ltd | BMIN | |
| Bryn Melyn Ltd | Bryn Melyn Ltd | BMLD | |
| Blaenau Mini Coaches | Stanley Wyn Jones | BMNC | |
| Brecon Mountain Railway | Brecon Mountain Railway | BMNT | |
| Border Mobility Transport | Stephen Wood & Partner | BMTS | |
| Broughton & Mottisfont Village Bus | Broughton & Mottisfont Village Bus | BMVB | |
| Bus Na Comhairle | Comhairle Nan Eilean Siar | BNCM | |
| B & N Coaches | Norman Poole | BNCO | |
| Stagecoach Yorkshire | Barnsley & District Traction Co Ltd | BNDY | |
| Bo'ness and Kinneil Railway | Bo'ness and Kinneil Railway | BNKR | |
| Bennetts | Bennetts Coaches Limited | BNNT | |
| Barnards Coaches | Barnards Coaches Limited | BNRC | |
| Bath & North East Somerset Council | Bath & North East Somerset Council | BNSC | |
| Bob's MiniBus (Preston) | Robert Livingstone | BOBM | |
| Bo'ness and Area Community Bus Association | BOCB | ||
| Bromyard OmniBus Co. | Bromyard | BOCO | |
| Bowyers Coaches | Fernley Christine Anning | BOCP | |
| Bodmans | Adrian Charles Hillier and Charles John Bodman | BODM | |
| Bibby's of Ingleton Ltd | Bibby'S Of Ingleton Ltd | BOIN | |
| Bon Chaunce Coaches | Bon Chaunce Coaches Ltd | BONC | |
| Borders Buses | BORD | ||
| Borderhoppa | Borderhoppa | BORH | |
| High Peak (Ceased) | Eric W Bowers Coaches Ltd | BOWE | |
| D K & N Bowman (Carlisle) | David Kennedy Bowman & Nora Bowman | BOWM | |
| Blueworks Private Hire | Philip Halliwell | BPHI | |
| The Burnley Bus Company | Burnley & Pendle Travel Ltd | BPTR | |
| Bradshaws Coaches | Bradshaws Coaches Ltd | BRAD | |
| Brackley Cars | Brackley Cars | BRCK | |
| Bryans Coaches | Bryans Coaches Ltd | BRCO | |
| Border Rambler | BRCS | ||
| Brentwood Community Transport | Brentwood Community Transport | BRCT | |
| Borderbus | George David Palmer & Partners | BRDB | |
| Bradies (Chippenham) | Michael Frank Druett | BRDS | |
| Brixham Express | Brixham Express | BREX | |
| Brijan Tours | Brijan Tours Ltd | BRIJ | |
| Brookside Travel | Brookside Travel | BRKT | |
| Brookline | Brookline Coaches Ltd | BRLN | |
| Bremner's of Aviemore | Kevin Bremner | BRMC | |
| Birmingham and Midland Museum of Transport | Birmingham And Midland Motor Omnibus Trust | BRMG | |
| Brady's Mini Travel (St Helens) | Karen Lynne Marsh | BRMT | |
| William Walker Barron (Chathill) | William Walker Barron | BRRN | |
| Bradshaw's Travel | Jill Swift | BRSH | |
| Brass's Buses | J & V Coaches | BRSS | |
| Bruce of Forfar | Bruce Coaches Ltd | BRUC | |
| Y Brodyr Williams | Evan Gwynne Williams & Partners | BRWL | |
| H.E. Brown & Sons (Heywood) | H.E.Brown & Sons Ltd | BRWN | |
| Bryans Coaches | Ernest George Bryan | BRYC | |
| Brylaine Travel | Brylaine Travel Ltd | BRYL | |
| Buses4U | East Surrey Rural Transport Partnership | BS4U | |
| BSEVC | BSEV | ||
| Buskers | Buskers Ltd | BSKR | |
| Bishops Stortford Minibus Trust | BSMT | ||
| Beaminster Town Council | BTCO | ||
| Britannia Bus | Britannia Bus Ltd | BTNA | |
| Blue Triangle | Blue Triangle Buses Ltd | BTRI | |
| Baine's Transport (Corwen) | William Alfred Baines & William Simon Baines | BTSP | |
| Budget Buses (South Shields) | Watson Pippet Robert | BUBU | |
| Buckland Buses | BUCK | ||
| Burtons Coaches | Burtons Coaches Ltd | BUCO | |
| Bullit Cars | Bullit Cars | BUCR | |
| Budget Bus | Budget Bus Limited | BUDG | |
| Buglers Coaches | Bugler Coaches Ltd | BUGL | |
| Bullocks Coaches | R Bullock & Co (Transport) Ltd | BULL | |
| W E & P Burton | William Edward Burton & Pamela Burton | BURT | |
| Bussco2 | Bussco2 | BUS2 | |
| Bus Service | Bus Service | BUSS | |
| Busy Bus Company | Busybus Limited | BUSY | |
| Butters Coaches | Butters Coaches Ltd | BUTT | |
| Bu-Val | Bu-Val Buses Ltd | BUVA | |
| Coach Hire Executive Travel Ltd | Coach Hire Executive Travel Ltd | BVTE | |
| Black Velvet Travel | Black Velvet Travel Ltd | BVTL | |
| Bruce Watt Cruises | Bruce Watt Cruises | BWCR | |
| Bodmin & Wenford Railway | BWEN | ||
| W Brownrigg | William Brownrigg | BWGG | |
| Bowkers Coaches | Bowkers Coaches | BWKC | |
| Brownrigg | S H Brownrigg Ltd | BWNR | |
| Bws Padarn (Caernarfon) | Padarn Bus Limited | BWSP | |
| Bluebird Travel | John Silk | BWTR | |
| BYB Travel Ltd | Byb Travel Ltd | BYBT | |
| Big Yellow Bus (Bradford on Avon) | Melanie Ruth Pearson | BYBU | |
| Berry's Coaches | Berrys Coaches (Taunton) Ltd | BYCO | |
| Bayleys of Malvern | Ronald Allen | BYMN | |
| Beeline Coaches | R & R Coaches Ltd | BZCO | |
| Buzzer Buses | Buzzer Buses | BZRB | |
| Buzzlines | Buzzlines Travel Ltd | BZZL | |
| Connect2Wiltshire | CONNECT2WILTSHIRE | C2WI | |
| ABC Cab Company | ABC Cab Company | CABC | |
| Call a Cab | Peter A Hughes & Gareth L Williams | CACA | |
| Capital Links/Cardiff Bus | CACB | ||
| Coastal and Country Coaches | Coastal & Country Coaches Ltd | CACC | |
| Caring Coaches | Nigel Peter Martlew | CACH | |
| Castle Buses | Napier Point Ltd | CACO | |
| Cardalls Limited | Quartz Coaches | CADL | |
| Thomas Herbert Jones & Partners | Thomas Herbert Jones & Partners | CAEL | |
| Cumbrae Coaches | Alexander Wright | CAES | |
| Castle Garage (Llandovery) | Castle Garage Ltd | CAGA | |
| CallConnect | CALC | ||
| Caledonian MacBrayne | Caledonian MacBrayne | CALM | |
| Cambell Brothers Coaches | Cambell Brothers Coaches | CAMB | |
| Cambraco Travel Ltd | CAMO | ||
| Campbells Coaches | CAMP | ||
| Camerons Travel | Sean Michael Hoare | CAMT | |
| Cango Minibus | Cango Minibus | CANG | |
| Cannock Cabs & Co | Michael Geoffrey Fletcher & Carole Anne Fletcher | CANN | |
| Capital Cars | Capital Cars Hook Ltd | CAPC | |
| Cape Coaches | Cape Coaches Ltd | CAPE | |
| Capitol Hire | John Martin Wallace Cleverley & Diane Cleverley | CAPH | |
| Cambridge Park & Ride | Cambridge Park & Ride | CAPR | |
| Caradoc Coaches | Caradoc Coaches Ltd | CARA | |
| Carnell Coaches | J W Carnell Ltd | CARC | |
| Cardinal Buses | Cardinal Buses Ltd | CARD | |
| Carebus Community Transport | CARE | ||
| Carreglefn (Ceased) | Alun Wyn Lewis | CARG | |
| AJ & NM Carr | A J & N M Carr Ltd | CARR | |
| Carrs Coaches | Anthony James Markley | CARS | |
| Castle Coaches (Tamworth) | Terence William Beaumont | CASC | |
| Cass Mini Coaches | Alfred Arthur Cass & Norma Kathleen Cass | CASS | |
| Castle Coaches (Skipton) | Neil Atkinson & David Taylor | CAST | |
| Cen ap Tomos | Sycharth | CATC | |
| Coastal Accessible Transport | Coastal Accessible Transport | CATS | |
| Catteralls Coaches | Catteralls of Southam Ltd | CATT | |
| Carsville (Manchester) | Carsville Coaches Ltd | CAVI | |
| Suckling Airways | Suckling Airways | CB | |
| Centrebus | Centrebus Ltd | CBBH | |
| Caber Coaches | Caber Coaches Ltd | CBCO | |
| Chaloners Buses | G H A Coaches Ltd | CBLD | |
| Centrebus Midlands | Centrebus Holdings Ltd | CBLL | |
| Classic Bus Lancashire | Totally Transport Cic | CBLS | |
| Centrebus | Centrebus North Ltd | CBNL | |
| Classicbus Lancashire | Classic Bus North West Limited | CBNW | |
| County Bus (M.S. Sherratt) - Herefordshire | M.S. Sherratt | CBSU | |
| Carmel Bristol | Carolyn Alderton | CBSW | |
| Coombs Travel | BRC Enterprises Ltd | CBTR | |
| Cardiff Bus | Cardiff City Transport Services Ltd | CBUS | |
| CC Cabs | Cc Cabs | CCAB | |
| Carreglefn | Alun Wyn Lewis | CCAM | |
| Castle Cabs (Conwy) Ltd | Castle Cabs (Conwy) Ltd | CCCL | |
| Caledonian Coaches (Fort William) Ltd | Caledonian Coaches (Fort William) Ltd | CCLC | |
| Clarksons Coaches | Ken Clarkson Ltd | CCLD | |
| Carters Coaches of Litcham | Keith Trevor Carter & Graham Paul Carter | CCLT | |
| CENTRAL CONNECT | Shady Lane Property Limited | CCNL | |
| Clarkes Coaches | Clarkes Coaches (Tredegar) Ltd | CCOA | |
| Coles Coaches (Falkirk) | Thomas Cole | CCSL | |
| Cambridge Coach Services | Cambridge Coach Services | CCSV | |
| Compass Community Transport Ltd | Compass Community Transport Ltd | CCTL | |
| Chester City Transport | Chester City Transport Ltd | CCTP | |
| Conwy Community Transport | Conwy Community Transport | CCTR | |
| Connect Community Transport | Connect Community Transport | CCTS | |
| Colchester Community Voluntary Services | Colchester Community Voluntary Services | CCVS | |
| Colin Davidson (Carlisle) | Colin Davidson | CDAV | |
| CD Cars | CD Cars | CDCA | |
| Cedric Coaches | Cedric Coaches Ltd | CDCO | |
| Chandlers Coach Travel | Margaret Sara Cynthia Baker-L 'Anson | CDCT | |
| Cedar Coaches | Cedar Coaches Ltd | CDRC | |
| CDS Taxis | Cds Taxis Ltd | CDST | |
| Central Buses | Cen Group Limited | CEBL | |
| Circle Line Coach and Omnibus Co. | Hempsted | CECO | |
| Coaches Excetera | BETC Ltd | CECT | |
| Cedric Coaches International | Cedric Garages (Wivenhoe) Ltd | CEDR | |
| Coach Express Limited | Coach Express Limited | CELD | |
| Central Logistics Limited | Central Logistics Ltd | CELL | |
| Celtic Travel | William Phillip Lloyd Davies & Jill Davies | CELT | |
| Central Coaches | Central Coaches | CENC | |
| Central Travel Sheffield | Paul William Harrison | CENH | |
| Central Connect (CENL) | Shady Lane Property Limited | CENL | |
| Central Trains Connection | Central Trains Connection | CENT | |
| Oyster Enterprises Ltd | Oyster Enterprises Ltd | CEXP | |
| Cromarty Ferry | Cromarty Ferry | CFCY | |
| Crieff Travel | David A J Myles | CFFT | |
| Coniston Launch | Coniston Ferry | CFSV | |
| Community First Wessex | CFWX | ||
| Coggeshall Community Bus | Coggeshall Community Bus | CGCB | |
| Central Garage Keith | William W Smith & Partners | CGKS | |
| Cango Minibus (operated by Steventon Transport) | Cango Minibus (operated by Steventon Transport) | CGST | |
| Chambers | H C Chambers & Son Ltd | CHAM | |
| Chapel End Coaches | Ians Luxury Coaches Ltd | CHAP | |
| Charlton Mini's | Charlton Minicoaches Ltd | CHAR | |
| Carters Heritage Buses | CHBL | ||
| Chepstow Classic Buses | David Loveless Hoare | CHCB | |
| Chester's Coaches | Chesters Coaches Ltd | CHCL | |
| Cheney Coaches | Cheney Coaches Ltd | CHEN | |
| Chiltern Bus | CHIL | ||
| Chalkwell Garage & Coach Hire | Chalkwell Garage & Coach Hire Ltd | CHLK | |
| Chambers Coaches | Chambers Coaches (Stevenage) Ltd | CHMB | |
| Charlton Services | N G J Holder & P D Holder | CHOT | |
| Countryman Coaches Motor OmniBus Co Ltd | Countryman Coaches Motor Omnibus Co Ltd | CHPR | |
| Chase Academy (Cannock) | Mark Dennis Ellse & Christine Mary Ellse | CHSE | |
| Charter Travel | Anthony John Charter | CHTR | |
| Coach House Travel (Dorchester) | Leslie Watts | CHTV | |
| CITYFleet (U.K.) LTD. | CITYFleet (U.K.) LTD. | CIFL | |
| Check in Coaches | Check In 1St Limited | CIGC | |
| City Sightseeing (Merseyside) | City Sightseeing (Merseyside) | CISI | |
| Citytax | John Hywel Grey | CITY | |
| Coakley Bus Co | Coakley Bus & Coach Ltd | CKBC | |
| Cuckmere Buses | Cuckmere Buses | CKMR | |
| Claribel Coaches | Claribel Coaches Ltd | CLAC | |
| Clan Travel | Marion Docherty | CLAN | |
| Claughtons Coaches | Claughtons Coaches | CLAU | |
| Classic Buses | Classic Buses | CLCB | |
| Colchester Coaches | Colchester Coaches Limited | CLCH | |
| Classic Coaches | Classic Coaches Continental Ltd | CLCO | |
| Clearway Mini Coaches | Clearway Mini Coaches | CLEA | |
| Clegg & Brooking | Clegg and Brooking Ltd | CLEG | |
| D J R Wheeler & C R G Wheeler | David John Robin Wheeler | CLER | |
| Cottrell's Coaches | Cottrell's Coaches | CLGC | |
| Clintona Minicoaches | Robin Staines & Barbara Joyce Staines | CLIN | |
| Clarkes of London | E Clarke & Son (Coaches) Ltd | CLKL | |
| Clarkes Minibus | Clarkes Minibuses Ltd | CLKM | |
| Carlone Buses | Carlone Ltd | CLNB | |
| W H Collins & Co | W H Collins & Co | CLNC | |
| Country Lion | Country Lion (Northampton) Ltd | CLNO | |
| Countryliner Travel | Countryliner Buses Ltd | CLNR | |
| Collins of Roch | W Collins & Co Ltd | CLNS | |
| Clan Taxis | Mhairi Macrae | CLNX | |
| The Clovelly Estate Co Ltd | The Clovelly Estate Co Ltd | CLOV | |
| Clowes Coaches | George Allen Clowes & Partners | CLOW | |
| Countryliner Coach Hire | Countryliner Coach Hire Ltd | CLRC | |
| Chelston Leisure Services | Chelston Leisure Services Ltd | CLSV | |
| Countryliner Sussex | Countryliner Sussex Ltd | CLSX | |
| Stagecoach East Midlands | Lincolnshire Road Car Co Ltd | CLTL | |
| Clynnog & Trefor | Clynnog & Trefor Motor Co Ltd | CLTR | |
| Clews Coaches | Carl Robert Clews | CLWS | |
| Calex Associates (Glasgow) | Calex Associates Limited | CLXA | |
| Colray Coaches (Blackpool) | Geoffrey Hugh Shaw | CLYC | |
| Clyde Marine | Clyde Marine | CLYD | |
| Clydewide Taxis (Lanark) | Ronald Jenkins | CLYT | |
| Calderdale Council Transport Services | Calderdale M B C | CMBC | |
| Catterick Garrison Mini Buses | Catterick Garrison Mini Buses | CMBU | |
| Countryman Community Bus | Our Centre | CMCB | |
| Chris's Minicoaches | Christopher Brown | CMCO | |
| CM Coaches | CMCS | ||
| Chelmsford Community Transport | Chelmsford Community Transport | CMCT | |
| Community First | CMFI | ||
| Charles MacLean | Alexander Dunnachie | CMLN | |
| C - Mac | C - Mac Partnership Ltd | CMPL | |
| CMR | CMR | CMRC | |
| Centaur Coaches | Centaur Overland Travel Ltd | CNTC | |
| County Travel | Stuart Mcmartin | CNTT | |
| Country Bus | Alansway Coaches Ltd | CNTY | |
| Coachstyle | Coachstyle Ltd | COAC | |
| Coastal Coaches | William Thomas Holder & Helen Holder | COAS | |
| Coachcare Travel | Robert Sankar | COAT | |
| Cozy Bus And Coach | Greg Powell | COBC | |
| Cochrane's | Cochranes Kelvin Travel (Peterlee) | COCH | |
| County Connect (Kent) | County Connect Ltd | COCO | |
| Commandery Coaches | Commandery Coaches Llp | COCS | |
| Codsall Cars | Leila Stride | CODS | |
| Corporate Express | Gurmal Singh Soomal | COEX | |
| Colins of Goole | Thomas Wheeler | COGO | |
| Colchri Coaches | Colchri Ltd | COLC | |
| Coastal Liner | Coastal Liner Ltd | COLI | |
| Combine Bus (Wiltshire) | Combine Bus (Wiltshire) | COMB | |
| Community MiniBuses Limited (Manchester) | Community Minibuses Ltd | COML | |
| Compo | Compo | COMP | |
| Compass Royston | Compass Royston Travel Ltd | COMR | |
| Compass Travel | Compass Travel (Sussex) Ltd | COMT | |
| Compass Travel (Wales) | Compass Travel (Wales) Ltd | COMW | |
| Caerphilly County Borough Council | Caerphilly County Borough Council | CON2 | |
| Coniston Coaches | Keith Taylor & Kevin James Taylor | CONI | |
| Constable Coaches | Constable Coaches Ltd | CONS | |
| Coopers | Coopers | COOP | |
| Copelands Tours | Copelands Tours (Stoke On Trent) Ltd | COPE | |
| John Michael Copley | John Michael Copley | COPL | |
| Cosgroves Coaches | Cosgroves Hire Services Ltd | COSG | |
| Cosy Coaches | Cosy Coaches | COSY | |
| Coastline Taxis | COTA | ||
| Coastline Travel | COTL | ||
| Connect Transport | Connect Transport Ltd | COTR | |
| Cotswold Green | Cotswold Green Ltd | COTS | |
| Cottons Coaches | Cottons Coaches | COTT | |
| Cotswold CVS | Cotswold C.V.S. Trading Ltd | COTW | |
| County Cars Limited | County Cars Limited | COUN | |
| Travel De Courcey | Mike De Courcey Travel Ltd | COUR | |
| Courtesy Coaches | Yelloway Coaches Limited | COUT | |
| Coxs of Belper | Bernard Bembridge | COXB | |
| Henry C Cox Limited | Henry C Cox Limited | COXS | |
| Cozy Travel | Cozy Travel Ltd | COZY | |
| Cowplain Cars | CPCA | ||
| Compaid Trust | CPDT | ||
| Philips Coach Hire | Richard Gordon Philip | CPHR | |
| Coopers Tourmaster | Cooper's Tourmaster Travel Ltd | CPTM | |
| Cranberry Coachways | Cranberry Coachways Ltd | CRAN | |
| Tighnabruaich Service Station | Mark Critchley & Barbara Frances Critchley | CRAS | |
| 247 Taxis | Creat | ||
| Cresta Coaches | Jeffrey Michael Soul | CRES | |
| CrewFlyer | CREW | ||
| Cofton Coaches & Euro Liners | Cofton Coaches & Euro Liners | CRFL | |
| RJB | RJB | CRJB | |
| Crosskeys Coaches | Crosskeys Coaches Ltd | CRKC | |
| Mark James Curley | Mark James Curley | CRLY | |
| Carmans Coaches | Carmans Coaches | CRMC | |
| Carmel Coaches | Anthony Grove Hazell | CRML | |
| Creagorry Motors | Creagorry Motors Ltd | CRMS | |
| Cornwall Ferries | Cornwall Ferries | CRNF | |
| Crannog Cruises | Crannog Cruises | CRNN | |
| Croston Mini Coaches | Louis Smith & Catherine Smith | CROS | |
| Cropley Brothers | Cropley Bros Tours (Fosdyke) Ltd | CRPL | |
| N N Cresswell | N N Cresswell Coach Hire Limited | CRSS | |
| Cartel Travel Limited | Cartel Travel Limited | CRTL | |
| Creigiau Travel | Creigiau Travel Ltd | CRTR | |
| Crickhowell Taxis | Gareth Wynn Jones | CRTX | |
| Crown Radio Taxis | Khurshid Baig & Partners | CRWN | |
| Clearway of Catshill | David John Robin Wheeler | CRWY | |
| Crystal Cars | Gillian Jenkins & Brian Jenkins | CRYC | |
| Crystal Coaches Ltd. | Crystal Coaches Ltd. | CRYT | |
| Chase Bus Services | Chase Bus Services | CSEV | |
| City Sightseeing Glasgow | City Sightseeing Glasgow Ltd | CSGL | |
| City Sightseeing Eastbourne | Tom Tappin Ltd | CSIT | |
| Carousel Buses | Carousel Buses Ltd | CSLB | |
| Cruiselink | Eavesway Travel Ltd | CSLK | |
| C & S Motors | C & S Motors | CSMO | |
| Classic Southdown Omnibuses | Classic Southdown Omnibuses Ltd | CSOM | |
| City Sightseeing Edinburgh | City Sightseeing Edinburgh Ltd | CSSE | |
| Peter Casson | Peter Casson | CSSN | |
| Coastal Coaches | Peter Howard Jenkins | CSTL | |
| Coach Services | Coach Services Ltd | CSVC | |
| Coach Services (Cheadle) | Neil Ellis | CSVS | |
| N.N.Cresswell | Mary Lavinia Sharman Shephard & Elizabeth Christine Everatt | CSWL | |
| Castleways | Castleways (Winchcombe) Ltd | CSWY | |
| CT4TC | Community Transport for Town and County | CT4T | |
| Cheney Taxis | Cheney Taxis | CTAX | |
| Clynnog & Trefor / Berwyn Coaches | CTBC | ||
| Community Transport (Brighton | Hove & Area) | CTBH | |
| Community Transport Calderdale Ltd | Community Transport Calderdale Ltd | CTCL | |
| CT Coaches | Susan Kaye Young & David Hugh Young | CTCO | |
| Carters Coach Services | Carters Coach Services Ltd | CTCS | |
| Carlton Transport | CTDR | ||
| Catterall's | Portrest Ltd | CTLL | |
| Centurion Travel | Centurion Travel Ltd | CTLT | |
| Community Transport for Lewes Area | Community Transport for Lewes Area | CTLW | |
| Courtney Buses | Courtney Coaches Ltd | CTNY | |
| CT Plus (Yorkshire) | Ct Plus (Yorkshire) Community Interest Company | CTPL | |
| Carters Travel | Paul Ashman | CTRA | |
| Polruan Passenger Ferry | Bodinnick Vehicle Ferry | CTSL | |
| Community Transport South Wiltshire | Community Transport South Wiltshire | CTSW | |
| C T Travel (Hexham) | Dodd Roland & Tilley Stuart | CTTV | |
| Coach Travel Wales | Coach Travel Wales Ltd | CTWA | |
| County Links | County Links | CTYL | |
| Courtesy Travel | Courtesy Travel | CTYT | |
| Cumfybus | Cumfybus Ltd | CUBU | |
| Cumbria Classic Coaches | William Hamer & Partners | CUCC | |
| Cumbria Coaches | Cumbria Coaches Ltd | CUCL | |
| Cummings and Goings | Cummings and Goeings | CUMM | |
| Clyde Waterbus | Clyde Waterbus | CWBU | |
| Cornwall Busways | Cornwall Busways Limited | CWBW | |
| Caldew Coaches Ltd (Carlisle) | Caldew Coaches Ltd | CWCO | |
| Citywing | David Buck | CWNG | |
| Cogenhoe and Whiston Parish Council | CWPC | ||
| The Cardiff Waterbus | The Cardiff Waterbus | CWTB | |
| City Way Travel Ltd | City Way Travel (Uk) Limited | CWTL | |
| Cathay Pacific | Cathay Pacific | CX | |
| Coalville Yellow Cabs | Coalville Yellow Cabs Ltd | CYCB | |
| Community Transport (Salford) | Community Transport Ltd | CYTR | |
| Felixstowe Travel | Michael David Dabbs & Anita Joy Dabbs | DABB | |
| Dial A Bus | Dial A Bus (Paignton) | DABP | |
| D A C Coaches | D A C Coaches Ltd | DACC | |
| Dave Allan Coaches | Allan Myring | DACO | |
| Community Action Dacorum | Community Action Dacorum | DACV | |
| Devon & Dorset Group | Devon & Dorset Group | DADG | |
| D & G Coach & Bus | Rolling Solutions Ltd | DAGC | |
| D A & A J MacLean | Donald Archibald Maclean & Archibald John Maclean | DAMC | |
| D A Mason MiniBus Hire (Merthyr Tydfil) | Dennis Anthony Mason | DAMM | |
| Damory Coaches | Hants & Dorset Motor Services Ltd | DAMY | |
| D A Travel | Duncan Aitken | DATR | |
| Billy Davies Executive Coaches | William Alan Anderson Davies | DAVP | |
| Dawlish Coaches | Dawlish Coaches Ltd | DAWL | |
| D B Travel (Dumbarton) | David Prentice Bishop | DBTV | |
| Deeside Village Hopper | Deeside Village Hopper (Aberdeenshire) | DCBT | |
| Durham County Council | Durham County Council | DCCL | |
| Davis Coaches | Davis Coaches Llp | DCLP | |
| Davies Coaches | Davies Coaches Ltd | DCOL | |
| R Drury Coaches (Goole) | Albert Roland Drury & Partners | DCPT | |
| Dixons Coaches (Kidderminster) | Dixons Coaches Ltd | DCSL | |
| Darwen Coach Services | David Robert Russell | DCSV | |
| Doncaster Community Transport | Doncaster Community Transport Ltd | DCTV | |
| People Movers | DDHT | ||
| Dales and District | Procters Coaches (North Yorkshire) Ltd | DDIS | |
| Discover Dorset Tours | Discover Dorset Ltd | DDLT | |
| O Ddrws i Ddrws | DDRW | ||
| Dean Taxis (Gateshead) | Collinsdale Ltd | DEAN | |
| D & E Coaches | D & E Coaches Ltd | DECO | |
| Deeside & Wrexham Shuttle | Deeside & Wrexham Shuttle | DEES | |
| Delaine Buses | Delaine Buses Ltd | DELA | |
| Deluxe of Atherstone | Home N Away (Coaches) Ltd | DELX | |
| J R Dent Coaches | Robert Harold Dent & Linda Carolyn Horstwood | DENN | |
| Denny's Coaches (Barnsley) | Frank Denny | DENY | |
| Denzil Davies | Noel Moore | DENZ | |
| Dewar Coaches (Falkirk) | Derek Dewar | DEWA | |
| Dews Coaches | Ron W Dew & Son Ltd | DEWS | |
| DirectFlight (Inter Shetland service) | DirectFlight (Inter Shetland service) | DFLT | |
| Deanforest Railway | Deanforest Railway | DFOR | |
| DGC Buses | Dumfries & Galloway Council | DGCB | |
| Dreadnought Coaches (Alnwick) | Claire Louise Gilroy | DGTC | |
| Don Henshaw Coaches | Donald Henshaw & Partners | DHCO | |
| D & H Travel | D & H Travel | DHTR | |
| Diamond Coaches of Rushden | Terence Robert Auty & Simon James Mobbs | DIAC | |
| Diamond Bus | Diamond Bus Ltd | DIAM | |
| D + I Cabs | Dobinson Brian | DICB | |
| Dickson of Erskine | Stewart Dickson | DICN | |
| Dickinson Coaches | Donald Dickinson & Partners | DIKI | |
| DJ International (Glasgow) | D J International Ltd | DJIN | |
| Leisure Travel | David Jackson | DJLT | |
| D Jones & Son | David Jones & Gary Jones | DJNS | |
| D J Travel | D J Travel Of Berkshire Ltd | DJTR | |
| Torbay Buses | DJWA | ||
| D & K Travel | DKTR | ||
| Francis Drake (Abertillery) | Drake Travel Services Ltd | DKTS | |
| D K Travel | David Keech | DKTY | |
| Docklands Buses | Docklands Buses Limited | DLBU | |
| Dreamline Travel Ltd | Drake Travel Services Ltd | DLTL | |
| Direct Mini Buses | Shoukat Ali | DMBU | |
| Denwell Mini Coaches | Denwell Mini Coaches Ltd | DMCL | |
| Dochertys Midland Coaches | J Docherty & Sons Ltd | DMCO | |
| Donald MacDonald | Donald Macdonald | DMDD | |
| DMH Cirencester | D M H Cirencester Ltd | DMHC | |
| Dartmouth Higher Ferry | Dartmouth Higher Ferry | DMHF | |
| Douglas Mini Coach Hire | Sam Douglas | DMHR | |
| D M K Motors | Donald A Mackenzie | DMKM | |
| Dunns Coaches | Dunns Coaches Ltd | DNNS | |
| Dobsons Buses (Northwich) | Dobsons Buses Ltd | DOBS | |
| Dorset County Council | Dorset County Council | DOCC | |
| Dodds of Troon | Dodds Of Troon Ltd | DODT | |
| Dolphin Autos | Dolphin Autos (Norwich) Ltd | DOLA | |
| Don Fraser Coaches | Howard Fraser | DONF | |
| Don's of Dunmow | Dons Coaches (Dunmow) Ltd | DONS | |
| Dornings Coaches | Dornings Coaches | DORN | |
| Dowerie Motors | Dowerie Motors | DOWE | |
| Doyles | K & H Doyle Coaches Ltd | DOYL | |
| D & P Boat Hire | DPBO | ||
| Prentice Coaches | Donald R Prentice | DPCE | |
| River Link | Dart Pleasure Craft Ltd | DPCR | |
| Dave Parry Travel Ltd | Parry'S International Tours Ltd | DPTL | |
| Dragon Wheels | Claire Louise Rees & Partners | DRAG | |
| Drimnin Ferry Action Group | Drimnin Ferry Action Group | DRIM | |
| DRM Coaches | Drm (Bromyard) Limited | DRMC | |
| Dartmoor Railway | Dartmoor Railway | DRMR | |
| D R Taxi Minibus & Coach Hire | DRTM | ||
| DR Travel | Carol Ann Rees | DRTR | |
| Dukes Travel | Dukes Travel | DTCL | |
| Dartline Coaches | Dealtop Ltd | DTCO | |
| Darren Tait Cars | Darren Tait Cars | DTCS | |
| Door to Door (York) | Alan Pearson | DTDB | |
| Dicksons Travel | Walter George Dickson | DTRV | |
| Discount Travel Solutions | DTSO | ||
| David Thompson Tours | David Thompson Tours Ltd | DTTL | |
| Dudley's Coaches | Dudley'S Coaches Ltd | DUDL | |
| Veolia Transport (Midlands) | Dunn-Line (Holdings) Ltd | DUNN | |
| C & M Coaches | Michael Dunn & Catherine Dunn | DUPC | |
| Davidson Buses | Davidson Buses Ltd | DVDB | |
| DANSA | Dansa Ltd | DVPA | |
| Deveron Coaches | Deveron Coaches Ltd | DVRN | |
| Dart Valley Railway Plc | Dart Valley Railway Plc | DVRP | |
| De Vere Travel | Brian Davison | DVTR | |
| Douglas Valley Bus & Coach | Douglas Valley Bus & Coach | DVYB | |
| DW Coaches | Daniel James Warden | DWCO | |
| Dysons Coaches | Robert Arthur Dyson | DYSO | |
| European Air Charter | European Air | E7 | |
| easyBus | EABU | ||
| easyCoach | EACO | ||
| Eagles Coaches | Martin James William Eagle | EAGC | |
| Easyway of Pencoed | Easyway Minibus Hire Ltd | EAPE | |
| E & A J Robertson | Eric Robertson & Dale M Robertson | EARB | |
| Earnside Coaches | Rutherford David Murray & Elizabeth Thomson & Fiona Elizabeth | EARN | |
| Eastville Coaches | Eastville Coaches Ltd | EASC | |
| Easidrive | James Anthony Murray | EASI | |
| Eastons Coaches | A W Eastons Coaches Ltd | EAST | |
| Eastonways | Eastonways Ltd | EAWY | |
| EaziBus | Stephen Evans & Amanda Evans | EAZI | |
| Elton Bullit Cars | Elton Bullit Cars | EBCM | |
| Ebley Coaches | Ebley Coaches Ltd | EBLY | |
| Euro Buses of Stoke | Euro Buses of Stoke | EBOS | |
| Edwards Bros | Robert William Edwards | EBRO | |
| Ellenbrook Travel | Ellenbrook Travel Ltd | EBTL | |
| Eddie Brown Tours | Eddie Brown Tours Ltd | EBTR | |
| Essex County Buses Ltd | Essex County Buses Ltd | ECBL | |
| East Coast Buses | ECBU | ||
| Evans Coaches (Tarporley) | Peter Jeremy Offa Evans | ECHS | |
| Edinburgh Coach Lines | Edinburgh Coach Lines Ltd | ECLN | |
| E Coaches | Keiron Paul Bacon | ECOA | |
| Elite Coach Services | Elite Coach Services Ltd | ECSL | |
| East Coast Travel (Bridlington) | Christopher Ian Wilkinson | ECTL | |
| Eden | Graeme Michael Scarlett | EDEN | |
| Emsworth & District | Emsworth & District Motor Services Ltd | EDMS | |
| Edward Thomas | Ivan Edward Thomas | EDTM | |
| Edinburgh Trams | Edinburgh Trams | EDTR | |
| Edwards Coaches | Edwards Coaches Ltd | EDWC | |
| Three Villages MiniBus | Three Villages MiniBus | EECC | |
| Eifion's Coaches | Hugh Eifion Humphreys | EFCO | |
| Epping Forest Community Transport | Epping Forest Community Transport | EFCT | |
| Elite at Fleet | EFLE | ||
| Eagle Coaches | Martin James William Eagle | EGCO | |
| Eagle Travel | Dek Ltd | EGLT | |
| English Heritage | English Heritage | EHSW | |
| Aer Lingus | International Airlines Group | EI | |
| Elkin Travel | Michael John Elkin & Sharon Sarah Wood | EKTV | |
| Stagecoach London | East London Bus & Coach Co Ltd | ELBG | |
| Elcock Reisen | M H Elcock And Son Ltd | ELCR | |
| Elgar Coaches | Gordon Raymond Price & Janet Sandra Portlock | ELGC | |
| Elite Services | Elite Services Ltd | ELIS | |
| Clifford Ellis | Clifford Ellis | ELLI | |
| Ellis | Ellis | ELLS | |
| Ellison Travel Service | W S Ellison Ltd | ELNS | |
| Ellenvale Coaches | ELNV | ||
| Ellie Rose Travel | Ellie Rose Travel Ltd | ELRO | |
| Emblings Coaches | Emblings Coaches Ltd | EMBL | |
| Elite MiniBus Services | Elite Minibus and Coach Service Ltd | EMCS | |
| E & M Horsburgh | E & M Horsburgh Ltd | EMHO | |
| Emirates Air Line | Emirates Air Line | EMIR | |
| Emma's Coaches International Limited | John Barrie Thomas | EMMA | |
| Emmets Taxis | Emmets Taxis | EMME | |
| Effie MacQuien | Effie MacQuien | EMQS | |
| Stagecoach East Midlands | East Midland Motor Services Ltd | EMSY | |
| Englands Limousines | ENLI | ||
| Enterprise Managed Services | Enterprise Managed Services | ENMS | |
| Enterprise Coaches | George Timothy James Mills | ENPS | |
| Ensign Bus | Ensign Bus Co Ltd | ENSB | |
| Enterprise (AOL) | Enterprise Aol Ltd | ENTR | |
| EOS | EOSB | ||
| Epsom Buses | H R Richmond Ltd | EPSM | |
| ERB Services | ERB Services | ERBS | |
| Eurocab Minibuses | Steve Harrison | ERCB | |
| East Riding Of Yorkshire Council | East Riding Of Yorkshire Council | ERDG | |
| ERH Roadcar | Edward Robert Hobbs | ERHR | |
| Eriskay Ferry | Eriskay Ferry | ERIS | |
| Bridgend Bus | Eros Travel | EROS | |
| Ellie Rose Travel | ERTR | ||
| Eastleigh Cabs | Eastleigh Cabs | ESCA | |
| Essex Community Link | Essex Community Link | ESCL | |
| Escort Taxis Ltd & Valley Cars | Escort Taxis Ltd & Valley Cars | ESCV | |
| Ely & Soham Association for Community Transport | Ely & Soham Dial a Ride | ESDR | |
| Esk Valley Coaches | Charles William Simpson | ESKV | |
| George Edwards & Son | George Edwards And Son Ltd | ESON | |
| EST Bus Ltd. | Est Bus Ltd | ESTB | |
| EST Coach Ltd | Est Coaches Ltd | ESTC | |
| Stotts Coaches | E Stott & Sons Ltd | ESTS | |
| Royal Buses | Nicholas Colin Eastwood | ESTW | |
| easyBus | Easybus Ltd | ESYB | |
| East Thames Buses | East Thames Buses | ETBU | |
| Edinburgh Bus Tours | Mac Tours Ltd | ETOR | |
| Direct Travel (MCR) Ltd | Direct Travel (Mcr) Ltd | ETTV | |
| Eurolines - Irish Night (National Coach Services) | Coras Iompair Eirann | EURI | |
| Eurolines | National Express | EURO | |
| Eurolines - Shipside Day (National Coach Services) | Eurolines - Shipside Day (National Coach Services) | EURS | |
| Eurolines/Ulsterbus | Northern Ireland Transport Holding Company | EURU | |
| Euro Taxis | Eurotaxis Ltd | EUTX | |
| J.F. Evans | J.F. Evans | EVAN | |
| Exe Valley and Community Bus | Exe Valley And Community Bus | EVCB | |
| Eve Coaches | Eve Coaches Ltd | EVES | |
| Evergreen Coaches Ltd | Evergreen Coaches Ltd | EVGC | |
| Ewen's Coach Hire | Ewan R MacKenzie | EWEN | |
| Exmoor Community Bus Association | Exmoor Community Bus Association | EXCB | |
| Excel Coaches | Excel Passenger Logistics Ltd | EXCL | |
| Exe 2 Sea Cruises | Exe 2 Sea Cruises | EXE2 | |
| Executive Minibuses | Executive Minibuses Ltd | EXEC | |
| Expresslines | Expresslines Ltd | EXLN | |
| Express Motors | Eric Wyn Jones & Jean Ann Jones | EXMO | |
| Expressway of Rotherham | Peter Regan | EXPR | |
| East Yorkshire Motor Services | East Yorkshire Motor Services Ltd | EYMS | |
| Fareline Bus & Coach Services | Jeff Morss | FABC | |
| First Aberdeen | First Aberdeen Ltd | FABD | |
| Fenland Association for Community Transport | Fenland Association Community Transport | FACT | |
| Fairbrothers Coaches | David Fairbrother | FAIC | |
| Fairline Coaches | Fairline Coaches Ltd | FAIR | |
| Falcon Coaches | FALC | ||
| Fargo Coaches | Leslie John Smith | FARG | |
| Farington Travel | Hazel Mary Johnson | FARI | |
| Farleigh Coaches | Carosa Ltd | FARL | |
| Fastrack (Arriva Kent Thameside) | Arriva Kent Thameside Ltd | FAST | |
| First Borders | First Borders | FBOR | |
| First Buses of Somerset | First Devon & Cornwall Ltd | FBOS | |
| First Bradford | First West Yorkshire Ltd | FBRA | |
| First Bristol | Bath & the West | FBRI | |
| Fairbrothers Ltd | Fairbrothers Limited | FBRO | |
| 1st Bus Stop Minibus | Clifford James Thurbin | FBSM | |
| Fairbourne and Barmouth Steam Railway | Fairbourne and Barmouth Steam Railway | FBSR | |
| Fleet Buzz | Stagecoach (South) Ltd | FBUZ | |
| First Call | First Calltravel Ltd | FCAL | |
| Four Counties Buses | Four Counties Buses | FCBU | |
| First Chester | First Chester | FCHE | |
| Finches | Brian Finch | FCHS | |
| First Coaches Limited | First Coaches Limited | FCLG | |
| First Choice Airport Services | First Choice Travel (Stanley) Ltd | FCTV | |
| First Kernow | First Devon & Cornwall Ltd | FCWL | |
| First South & West Wales | First Cymru Buses Ltd | FCYM | |
| First Wessex | Dorset & South Somerset | FDOR | |
| FLIGHT DELAY SERVICES LTD | Flight Delay Services Ltd | FDSL | |
| First South Devon | First Devon & Cornwall Ltd | FDVN | |
| First Norfolk & Suffolk | First Eastern Counties Buses Ltd | FECS | |
| Fellrunner | Fellrunner | FELL | |
| Feline Executive Travel | FELT | ||
| Felix | Felix Bus Services Ltd | FELX | |
| First Eastern National/National Express | First Eastern National/National Express | FENX | |
| Ferris Holidays Ltd | Ferris Holidays Ltd | FERR | |
| Ffestiniog & Welsh Highland Railways | Ffestiniog & Welsh Highland Railways | FEST | |
| First Essex | First Essex Buses Ltd | FESX | |
| Far East Travel | Far East Travel Ltd | FETR | |
| Feury Coaches | Feury Coaches | FEUR | |
| Felixstowe Ferry Boat Yard | Felixstowe Ferry Boat Yard | FFBY | |
| First Flexi (PMT ) | First Flexi (PMT ) | FFLX | |
| Ffoshelig Coaches | Phillip Rhodri Evans | FFOC | |
| Faringdon Community Bus | Faringdon Community Bus | FGDN | |
| First Greater Glasgow | First Glasgow (No1) Ltd | FGLA | |
| First Halifax | First West Yorkshire Ltd | FHAL | |
| First Portsmouth | Fareham & Gosport | FHAM | |
| First in Hants & Dorset | First Hampshire & Dorset Ltd | FHDO | |
| Wessex Connect | Flights Hallmark Ltd | FHML | |
| Wessex Red | Flights Hallmark Ltd | FHMR | |
| Wessex Star | Flights Hallmark Ltd | FHMS | |
| First Halifax | Calder Valley & Huddersfield | FHUD | |
| Icelandair | Icelandair Group | FI | |
| Fair Isle Ferries | Fair Isle Ferries | FIGS | |
| Finesse Coaches | Finesse Coaches Ltd | FINE | |
| Finglands Coachways | Finglands Coachways Ltd | FING | |
| Finesse Travel | FINT | ||
| First Choice Airport Services | First Choice Airport Services | FIRS | |
| Fishers | Fishers | FISH | |
| First Leeds | First West Yorkshire Ltd | FLDS | |
| First Leicester | Leicester CityBus Ltd | FLEI | |
| Fletcher's Coaches | Graham Stuart Fletcher | FLET | |
| Flushing Ferry | Flushing Ferry | FLFY | |
| Flights | Flights Hallmark Ltd | FLIG | |
| Fastline Travel | Fastline Travel Ltd | FLNE | |
| First in London | First Capital East Ltd | FLON | |
| Florida Coaches | Florida Taxis & Coaches Ltd | FLOR | |
| Flittabus | Flittabus | FLTB | |
| First Greater Manchester | First Manchester Ltd | FMAN | |
| First Moreton | First Moreton | FMOR | |
| Friends Of Wirral Transport Museum (Birkenhead) | Robert Tennant | FMUS | |
| First North Devon | First Devon & Cornwall Ltd | FNDE | |
| First in Northampton | Northampton Transport Ltd | FNOR | |
| Norman Forrest | Norman Forrest | FORR | |
| Fosseway Coaches (Chippenham) aka Faresaver | John Valentine Pickford | FOSS | |
| Fowlers Travel | W H Fowler & Sons (Coaches) Ltd | FOWT | |
| First Greater Manchester | First Pioneer Bus Ltd | FPIO | |
| First Potteries | First Potteries Ltd | FPOT | |
| Fred Prophet Taxis | Fred Prophet | FPTX | |
| Ryanair | Ryanair | FR | |
| Freebird Coaches (BURY) | Paul Dart | FRBD | |
| Travel South Yorks | First South Yorkshire Ltd | FRBE | |
| Fords Coaches | Anthony A W Ford & Anthony W Ford | FRDS | |
| Fred's of Ilkeston | Frederick Hancox | FRED | |
| Fal River Ferries | FRFS | ||
| FromeBus | Frome Minibuses Ltd | FRMN | |
| Fernhill Travel Ltd | Fernhill Travel Ltd | FRNH | |
| Forres Taxis & Minicoaches | Colin J Tulloch & Ewan M Tulloch | FRRS | |
| Mersey Ferries | Mersey Ferries | FRRY | |
| Freshfield Coaches (Liverpool) | Formby Coachways Ltd | FRSH | |
| First Rail Support | Centrewest London Buses Ltd | FRSU | |
| Freeway Coaches | Freeway Coaches Ltd | FRWC | |
| First Buses of Somerset | First Somerset & Avon Ltd | FSAV | |
| First South East and Central Scotland | First Scotland East Ltd | FSCE | |
| E Fisher & Son | E Fisher & Son | FSHR | |
| Fishers Tours | James Cosgrove & Catherine Ann Cosgrove | FSHT | |
| First Worcestershire | First Midland Red Buses Ltd | FSMR | |
| Fastnet Line | Fastnet Line | FSNT | |
| Foreign Support | Foreign Support | FSNW | |
| First Southampton City Reds | First Southampton | FSOT | |
| Five Star Private Hire | Five Star Private Hire Ltd | FSPH | |
| Faresaver | John Valentine Pickford | FSRV | |
| Freestone Coaches | Freestones Coaches Ltd | FSTN | |
| First South Yorkshire | First South Yorkshire Ltd | FSYO | |
| Fitzcharles Coaches | Fitzcharles Coaches Ltd | FTCC | |
| Fareways Travel | FTDA | ||
| First Berkshire & The Thames Valley | First Beeline Buses Ltd | FTVA | |
| Freedom Travel | Freedom Travel Coaches (Uk) Ltd | FTVL | |
| Williams Travel | Frederick Thomas Williams | FTWI | |
| Filers Travel | Filers Travel Limited | FTZL | |
| Funstons Coaches | Funstons Transport Services Ltd | FUNS | |
| Ferryhill Village Travel | Keith Roy Hammond | FVTL | |
| Fourways Coaches | Dorothy June Victoria Merriday & Derek Charles Merriday | FWAY | |
| John Fishwick & Sons | John Fishwick & Sons Ltd | FWKS | |
| F W Stainton & Son Ltd | F W Stainton & Son Ltd | FWSS | |
| Fairway Coaches (Paisley) | Ann Hill | FWYC | |
| Fastway (Metrobus) | Metrobus Ltd | FWYK | |
| First West Yorkshire Ltd | First West Yorkshire Ltd | FWYO | |
| Fairway Travel | Fairway Commercials Ltd | FWYT | |
| Felix Taxis & Co. | Stephen Golynia & Partners | FXTX | |
| First York | First York Ltd | FYOR | |
| FYTbus | FYTB | ||
| Fereneze Travel (Paisley) | Raymond Hill | FZTL | |
| Eve Coaches | Operated by Eve's Coaches | GABZ | |
| Geoff Amos Coaches | Geoff Amos Coaches Ltd | GACO | |
| Taxico | Gary Anthony Goldstraw | GAGS | |
| Go Ahead London | London General Transport Services Ltd | GAHL | |
| B.Gallagher | B.Gallagher | GALL | |
| Galson Motors | Galson Stornoway Motor Services Ltd | GALM | |
| Gardiner Brothers Ltd | Gardiner Brothers Ltd | GARD | |
| G&R Enterprise (Transport Division) | G&R Enterprise (Transport Division) | GARE | |
| Gastonia | Gastonia | GAST | |
| Gem Travel | Gary & Tracey Spark | GATS | |
| Gatwick Links | Gatwick Links Ltd | GATW | |
| The Green Bus (operated by Arriva Kent & Surrey) | Arriva Kent & Surrey Ltd | GBAK | |
| The Green Bus (operated by Abellio Surrey) | Abellio Surrey Ltd | GBAS | |
| David Bolton | G B Coaches Ltd | GBCO | |
| The Green Bus (operated by Reading Buses) | Reading Transport Ltd | GBRB | |
| G B Travel (North East) | Geoffrey John Balsdon | GBTL | |
| Getting Better Together | Getting Healthy Together Ltd | GBTS | |
| Grahams Coaches | Grahams Coaches Ltd | GCCH | |
| Geldards Coaches (Leeds) | Geldards Coaches Ltd | GCLY | |
| Gary's Coaches | Gareth John Lane | GCOA | |
| G Crossley | G Crossley | GCRO | |
| Glasgow Citybus | Glasgow Citybus Ltd | GCTB | |
| Glasgow Corporation Transport | Michael J Roulston | GCTP | |
| GD Coaches | GDCO | ||
| Gorran & District Community Bus | Gorran & District Community Bus | GDCS | |
| Godsons Coaches | James Matthew Godson | GDSN | |
| GDS Travel | GDST | ||
| Glyn Evans & Son | Michael John Evans | GEAS | |
| Galloway European | Galloway European Coachlines Ltd | GECL | |
| Gemini Travel | Gemini Travel | GEMT | |
| Genaration Travel | David Scaife & Keith Gerald Drew | GENR | |
| Gareth Evans Coaches (AMMANFORD) | Kevin Davies & Sharon Davies | GEVA | |
| Going Forward Buses | GFWD | ||
| George's Taxis | George's Taxis | GGET | |
| GHA Coaches | G H A Coaches Ltd | GHAL | |
| Gateshead Central Taxis | Central Taxis Gateshead Ltd | GHCT | |
| G & H Executive MiniBuses | Blaenau Gwent | GHEM | |
| GHH Coach Hirers | GHH Coach Hirers Ltd | GHHC | |
| Hamish Gordon Coaches | Hamish Gordon | GHMS | |
| RA & DL Whittle | Ra & Dl Whittle | GHWL | |
| Gills Travel | Patrick & Jacqueline Gill | GILT | |
| Gibson Direct | Gibson Direct Ltd | GIVD | |
| G J B Coaches | G J B Coaches | GJBC | |
| G & J Holmes | G & J Holmes (Coaches) Ltd | GJHC | |
| Green Line (operated by Arriva Harlow) | Arriva Kent Thameside Ltd | GLAH | |
| Green Line (operated by Arriva the Shires) | Arriva The Shires Ltd | GLAR | |
| Glamorgan Bus & Coach | Glamorgan Bus Co Ltd | GLBC | |
| Golden Line Buses Ltd | Goldenline Buses Ltd | GLBL | |
| Gloucestershire Council | GLCC | ||
| Globe Coaches | GLCS | ||
| Greenlinks Community Transport | Greenlinks Community Transport | GLCT | |
| Green Line / Easybus (operated by Arriva) | Green Line / Easybus (operated by Arriva) | GLEB | |
| Glenedin Coaches | Kathleen Ann Macaskill | GLEN | |
| Green Line (operated by First in Berkshire) | First Beeline Buses Ltd | GLFI | |
| P G Coaches | Peter Gallagher | GLGR | |
| Gillingham Coaches | Mary Hannah Gillingham & Partners | GLHC | |
| Garelochhead Minibuses & Coaches | Garelochhead Minibuses & Coaches Ltd | GLHD | |
| TrustyBus | Arriva Kent & Surrey Ltd | GLLN | |
| Gloucester Limos and Minibuses | Gloucester Limos and Minibuses | GLMB | |
| Arriva Southern Counties (GLNK) | Arriva Kent & Surrey Ltd | GLNK | |
| Glenn Coaches | John T D Wreglesworth & Joan Wreglesworth | GLNN | |
| Globe Coaches | Monica Jarvis & Stephen Wayne Jarvis | GLOB | |
| Gloucester Minibuses | GLOM | ||
| Glovers | Glovers Coaches Ltd | GLOV | |
| Green Line (operated by Reading Buses) | GLRB | ||
| Green Line (operated by Arriva Harlow) | Arriva Kent Thameside Ltd | GLTG | |
| Glenkens Transport Initiative | Glenkens Transport Initiative | GLTI | |
| GLENTRAN CARRIAGE | GLENTRAN CARRIAGE | GLTN | |
| GMATL | GMATL | GMAT | |
| Glyn's Mini Bus Hire | John Arthur Glyndwr Hicks | GMBH | |
| Graham's Minibuses | Grahams Minibus Travel Ltd | GMBS | |
| GM Coaches (Bridgend) | G M Coaches Ltd | GMCS | |
| Gem Mini Travel | Gem Mini Travel Ltd | GMMN | |
| The Eden | Graham's Motor Services Ltd | GMSL | |
| Green Mountain Travel | Green Mountain Travel Ltd | GMTL | |
| Graham Nash | GNAS | ||
| Go North East | Go North East Limited | GNEL | |
| Go Northern Ltd | Go Northern Ltd | GNET | |
| Glenesk Travel Company | Glenesk Travel Ltd | GNKT | |
| Gillen Coaches | Gillens Coaches Ltd | GNSC | |
| Garnetts Coaches | Garnetts Ltd | GNTT | |
| Gadsby's of Ashbourne | Mark William Gadsby | GOAS | |
| Goosecroft Coaches | Goosecroft Coaches Ltd | GOCC | |
| Go-Coach Hire | Go-Coachhire Limited | GOCH | |
| Goode Coaches | David William Lionel Goode | GOCO | |
| Go Start Community Transport | GOCT | ||
| Goole Go Far | Goole & District Community Transport Group | GOGF | |
| Go Goodwins | Go Goodwins (Coaches) Ltd | GOGO | |
| Go Jack Buses | Go Jack Buses | GOJB | |
| Golden Boy Coaches | Jetsie Ltd | GOLD | |
| Goodsir | Thomas Glyn Hughes & Graham Charles Goodsir | GOOD | |
| Gordon Collins Coaches (Selby) | Alan Collins | GORC | |
| Gordons Coaches | Hamish Gordon Ltd | GORD | |
| Gosport-Portsmouth Ferry | Gosport-Portsmouth Ferry | GOSF | |
| Grant Palmer | Grant Palmer Limited | GPLM | |
| Grand Prix | Frank Allison Ltd | GPRX | |
| Gwynne Price Transport Ltd | Gwynne Price Transport Limited | GPTL | |
| Glasgow Prestwick Airport | Glasgow Prestwick Airport Limited | GPWK | |
| Whites Coaches (Shetland) | George Peter White | GPWS | |
| Aurigny Air Services | Aurigny Air Services Ltd | GR | |
| Grabba Cab | Sean Michael Harwood | GRAB | |
| Gwili Railway | Gwily Railway | GRAL | |
| Grayway Coaches | Walls Of Wigan Ltd | GRAY | |
| Eastbond Travel (Walsall) | Eastbond Ltd | GRBL | |
| Go Ride CIC | Go Ride CIC | GRCC | |
| Grenitote Travel | Grenitote Travel Ltd | GRET | |
| C.P. Griffith | C.P. Griffith | GRFT | |
| Griffin Bus | Griffin Management Services Ltd | GRIF | |
| Grindles Coaches | Grindles Coaches Ltd | GRIN | |
| Greenline/National Express | Greenline/National Express | GRLE | |
| Green Line Minibus Services | Green Line Minibus Services | GRLN | |
| Graham Minibus | Roderick & Deirdre Graham | GRMB | |
| Grant & Mcallin Coaches | Ashley Travel Ltd | GRMC | |
| IAN RICHARD HOWARD | Ian Richard Howard | GRNB | |
| R R Grogan | R R Grogan | GROG | |
| Group Taxibus Ltd | Group Taxibus Ltd | GRPT | |
| George Rapson Travel | Easter Ross Coach Co (LLP) | GRTL | |
| G & R Travel (Sheffield) | Roy Rodgerson | GRTR | |
| Grosvenor Coaches | M J Grosvenor (Motors) Ltd | GRVN | |
| Grayscroft Coaches | Grayscroft Bus Services Ltd | GRYC | |
| Greyhound UK | Greyhound Uk Limited | GRYH | |
| Goldstar Coaches Of Gravesend | GSCG | ||
| Greenslade Pleasure Boats LLP | Greenslade Pleasure Boats LLP | GSPB | |
| Gayton & Tiffield Community Bus | Community Minibus | GTCB | |
| Generation Travel | General Travel Ltd | GTLT | |
| Diamond Bus North West | Green Triangle Buses Ltd | GTRI | |
| Group Travel | Moon & Benney Ltd | GTVL | |
| Crown Gutheries Taxis (Stockton-on-Tees) | Crown Guthries Ltd | GTXS | |
| Guide Friday | City Sightseeing | GUID | |
| Gurvinder Kaur | Gurvinder Kaur | GURV | |
| Guscotts Coaches | Guscott'S Coaches Ltd | GUSC | |
| Glen Valley Tours | Glen Valley Tours Ltd | GVTR | |
| Gwynfor Coaches | Gwynfor Hughes | GWCO | |
| F R Willetts | FR Willetts Ltd | GWIL | |
| Gwyn Williams | Gwyn Williams & Sons Ltd | GWIM | |
| Glenvale Walk Ltd | Glenvale Walk Ltd | GWLD | |
| S B Travel | G W & M Brunskill Ltd | GWMB | |
| Gwynfor Coaches (Llangefni) (Ceased) | Gwynfor Hughes | GWYN | |
| The Great Yarmouth & Gorleston Steam Packet Company | The Great Yarmouth & Gorleston Steam Packet Company Ltd | GYGS | |
| Grayline Coaches | Hartwool Ltd | GYLC | |
| Goodyear Coaches | Ernest Goodyear | GYRY | |
| TJ Walsh | The Halifax Bus Co Ltd | HABC | |
| Harrods Coaches | D & H Harrod (Coaches) Ltd | HACO | |
| Halesworth Area Community Transport | Halesworth Area Community Transport | HACT | |
| Hadleigh Community Transport | Hadleigh Community Transport | HADC | |
| Hafan Coaches (Blaenau Ffestiniog) | Craig Jones | HAFA | |
| H and G Travel | H and G Travel | HAGT | |
| Haines Coaches | Nigel Anthony Haines & Susan Haines | HAIN | |
| Halifax Joint Committee | Anthony Roger Blackman | HAJC | |
| J & D S Halcrow | Douglas S Halcrow & Sheila Halcrow | HALC | |
| Halesworth Area Community Transport | Halesworth Area Community Transport | HALV | |
| Hamilton Coaches (Falkirk) | Michael Hamilton | HAMC | |
| Hamilton Gray | HAMG | ||
| Hams Travel | Donald William Ham & Partners | HAMS | |
| Hancock's Coaches (Pontypool) | Angus Harrison | HANC | |
| HandyBus Ltd (Newcastle-under-Lyme) | Handybus Ltd | HAND | |
| Hansons | Hansons (Wordsley) Ltd | HANS | |
| Happy Days (Woodseaves) Ltd | Happy Days (Woodseaves) Ltd | HAPD | |
| Hardings Coaches (Redditch) | Tanners Croft Garage Ltd | HARD | |
| Harkers Coaches | Malcolm Morton Terry | HARK | |
| Harris Travel | HART | ||
| Harpurs Coaches | Harpurs Coaches Ltd | HASO | |
| Halton Traveller (Widnes) | Derek Anthony Hughes | HATR | |
| Hattons Travel | HATT | ||
| London Borough of Havering | London Borough of Havering | HAVR | |
| Hawkes Tours | Hawkes Tours | HAWT | |
| Haydns Tours & Travel | Haydns Tours & Travel | HAYD | |
| Hayling Ferry Limited | Hayling Ferry Limited | HAYL | |
| B S Hayre | B S Hayre | HAYR | |
| Norman Hayes | Norman John Hayes | HAYS | |
| Hayton's Coaches | Haytons Executive Travel Ltd | HAYT | |
| Hamiltons & Buckbys Coaches | Minesh Uka | HBCO | |
| Hills Burghclere | HBDU | ||
| Hartlepool Borough Council | Hartlepool Borough Council | HBRC | |
| Harbourne Shuttle | Harbourne Shuttle | HBSH | |
| Yorkshire Tiger | Yorkshire Tiger Limited | HBSY | |
| Heartlands Travel Ltd | Heartlands Travel Limited | HBTL | |
| Halton Transport | Halton Borough Transport Ltd | HBTR | |
| Hedgehog Community Bus | Hedgehog Community Bus | HCBU | |
| Henry Cooper Coaches | Lilly Greaves & Graham Greaves | HCCL | |
| Hampshire Community Transport | HCCT | ||
| Highland Council Ferry | Highland Council Ferry | HCFY | |
| Hector MacNeil | Hector Macneil | HCMN | |
| Huntingdonshire Association for Community Transport | Huntingdonshire Association For Community Transport | HCOM | |
| Hoggie's Coach Travel Ltd (Barnsley) | Hoggie's Coach Travel Ltd | HCTP | |
| Halton Community Transport | Halton Community Transport Ltd | HCTR | |
| Connexions Buses | Harrogate Coach Travel Ltd | HCTY | |
| H D A Coaches | Huw Dylan Ashton | HDAC | |
| Handcross District Community Bus | Handcross District Community Bus | HDBC | |
| Harrogate District Community Transport | Harrogate District Community Transport | HDCT | |
| Happy Days Group | Happy Days Executive Travel Ltd | HDGR | |
| Hodgsons | Hodgsons Coach Operators Ltd | HDGS | |
| Peter Hodgson Travel | HDGT | ||
| Horse Drawn Minibus | Steven Parsons | HDMB | |
| Hirethisbus.com | Michael James Hazell | HDOT | |
| Hodgsons Private Hire (County Durham) | James Keith Hodgson | HDPH | |
| Healings International Coaches | Philip E Healing & Julie Brooks | HEAL | |
| Hebridean Coaches (Isle of Lewis) | Donald Macdonald & Alexandrina Macdonald | HEBC | |
| Herefordshire Council | Herefordshire Council | HECC | |
| Hedingham | Hedingham And District Omnibuses Ltd | HEDO | |
| HV and PG Helms | Helms Coaches Ltd | HELM | |
| Henderson Travel | John C & David C Henderson | HEND | |
| Henleys | Henleys Bus Services Ltd | HENL | |
| Henshaw's Coaches | Henshaws Executive Travel Ltd | HENS | |
| Herrington Coaches | Herrington Coaches Ltd | HERR | |
| Hetherington Coaches | Hazel Hetherington & Partners | HETH | |
| Hebridean Transport | I A & C Maciver Ltd | HETR | |
| Hunters Executive Coaches | John Andrew Hunter | HEXC | |
| Hexmat | Albert Alan Wild | HEXM | |
| Heyfordian Travel | Heyfordian Travel Ltd | HEYF | |
| Highland Ferries | Highland Ferries | HFRS | |
| Hatch Green Coaches | Hatch Green Garage Ltd | HGCO | |
| Wharfeconnections | Harrogate Coach Travel Ltd | HGCT | |
| Hegarty Travel | Ian Philip Hegarty | HGTY | |
| Hurst & Hassocks Community Bus | Hurst & Hassocks Community Bus | HHCB | |
| H & H Motors | Roger Melvyn Smith and Malcolm Percival Harris | HHCL | |
| Harwich Harbour Ferry | Harwich Harbour Ferry | HHFS | |
| Hatton Hidson Minor Munro | Hatton Hidson Minor Munro | HHMM | |
| Hodgson & Son | David Earl Hodgson And Partners | HHSN | |
| Holy Island Bus Service | Christopher Douglas | HIBS | |
| Highland Council | Highland Council | HIGH | |
| Hills Coaches (Wolverhampton) | Hills Coaches Ltd | HILL | |
| Derek Hilton Travel | Joseph Derek Hilton & Graham Hilton | HILT | |
| Holy Island Minibus | James Hector Douglas | HIMB | |
| Hinckley Bus | Centrebus Holdings Ltd | HINB | |
| High Peak | Eric W Bowers Coaches Ltd | HIPK | |
| Hi-Ride Coaches | Ferdinand Pellington | HIRC | |
| Historic Scotland | Historic Scotland | HIST | |
| Hotel Hoppa | Hotel Hoppa | HLHP | |
| Hamilton Coaches (Newcastle) | Colin Hamilton & Anne Patricia Hamilton | HLTL | |
| Hollywood Travel | Hollywood Travel Ltd | HLTV | |
| Hallewells Taxis | Hallewells Taxis | HLWL | |
| Harting Minibus CIC | Harting Minibus | HMIN | |
| Humphreys Coaches (Pontypridd) Ltd | Humphreys Coaches (Pontypridd) Ltd | HMPH | |
| Hampton Coaches | Lawrence Lewis Hampton | HMPT | |
| Hebridean MiniBus Service | Macritchie Bros Ltd | HMSV | |
| Silverline Travel Limited | Silverline Travel Limited | HNHT | |
| Houston's Minicoaches | Harriet Janet Houston and William John Houston | HNMI | |
| Hunts Coaches | F Hunt (Coach Hire) Ltd | HNTC | |
| Hornsby Travel Services | Hornsby Travel Services Ltd | HNTS | |
| John Hoban | John Hoban Travel Ltd | HOBN | |
| Hollands Coaches | George Ronald Mole & Steven John Mole | HOCO | |
| Hodsons Coaches | Hodsons Coaches (Clitheroe) Ltd | HODG | |
| Hodson Coaches | Hodson Coaches Ltd | HODS | |
| Peter Hogg of Jedburgh | Elizabeth Anne Hogg | HOGG | |
| Home James | Home James | HOJA | |
| Hollinshead's Coaches | Hollinshead Coaches Ltd | HOLL | |
| Holloway Coaches | Holloways Coaches Ltd | HOLO | |
| Robin Hood Travel | Fazal Rabbi Khan | HOOD | |
| Hookways Jennings | Hookways Ltd | HOOK | |
| Hopleys Coaches | Hopleys Coaches Ltd | HOPE | |
| J Horne Travel | James Horne | HORN | |
| Horrocks Bus Ltd (Lydbury North) | Andrew Philip Horrocks | HORR | |
| Houston's | William John & Alexander Houston | HOUS | |
| Hovertravel | Hovertravel | HOVT | |
| Howards Travel | Ian Richard Howard | HOWT | |
| Harpenden Connect | HPDN | ||
| Horwich Private Hire | Horwich Private Hire | HPHL | |
| Harlequin Coaches | Harlequin Coaches Ltd | HQCO | |
| Herberts Travel | Speldhurst Ltd | HRBT | |
| Holsworthy Rural Community Transport | HRCT | ||
| P J Hardman | P J Hardman | HRDM | |
| The Harrogate Bus Company | Harrogate & District Travel Ltd | HRGT | |
| Harringtons (Warwickshire) | Harrington Coaches Ltd | HRNC | |
| Harry O Transport | Hendry John Beekman | HROT | |
| The Harrier | Harrier Travel Ltd | HRRR | |
| Harris Coaches | Harris Coaches (Pengam) Ltd | HRRS | |
| Horseman Coaches | Horseman Coaches Ltd | HRSC | |
| Harwich Connexions Transport | Harwich Connexions Transport | HRWC | |
| High Suffolk Community Transport | High Suffolk Community Transport | HSCT | |
| Harry Shaw Travel | Harry Shaw (Dm) Ltd | HSHT | |
| Heritage Travel | Michael Robert Wilkinson | HTGT | |
| Hayling Travel | HTRA | ||
| Harte Buses | Peter M Harte | HTSB | |
| Hatts Coaches | Adrian Charles Hillier & Partners | HTTS | |
| Yorkshire Tiger | Yorkshire Tiger Limited | HUDB | |
| Michael Hughes Coaches (Preston) | Michael Douglas Hughes | HUGH | |
| Hulme Hall Coaches | Hulme Hall Coaches Ltd | HULM | |
| Hulleys of Baslow | Henry Hulley & Sons Ltd | HULS | |
| Hunters | Hunter Brothers (Tantobie) Ltd | HUNT | |
| Hutchinson | Henry Dennis Hutchinson | HUTC | |
| Hughes Travel | HUTR | ||
| Hutchinsons | Wendy Pauline Hutchinson & Michael Hutchinson | HUTY | |
| Huyton Travel | Huyton Travel Ltd | HUYT | |
| Hartley Wintney Community Bus | Hartley Wintney Community Bus | HWCB | |
| Holmeswood Coaches Ltd | Holmeswood Coaches Ltd | HWCO | |
| Hawkes Coaches | Hawkes Tours (Derby) Ltd | HWKS | |
| Holsworthy Ltd | Holsworthy Ltd | HWLD | |
| Hayesway Travel | Charles Neville Hayes | HWTR | |
| The Travellers Choice (Carnforth) | Hadwins (Tours) Ltd | HWTS | |
| James Christey (Darlington) | James Edward Patrick Christey | HWTY | |
| Huxley Travel (Malpas) | Huxley Travel Ltd | HXLY | |
| Part of Stagecoach in South Wales | Islwyn Borough Transport Ltd | IBTL | |
| Heartlands Bus (Tamworth) | Tamworth Coach & Bus Ltd | ICLB | |
| Iain Moffat Coaches (Northumberland) | David Moffat Iain | IDMF | |
| I F Anderson Coaches | I F Anderson Coaches Ltd | IFAC | |
| igo | IGOB | ||
| Imperial Bus Company | Imperial Bus Co Ltd | IMBC | |
| Iain MacDonald | Iain Macdonald | IMCD | |
| Manx Electric Railway | Manx Electric Railway | IMER | |
| Impact Coaches | IMPA | ||
| Impera | Impera Bus & Coach Ltd | IMPB | |
| Isle of Mull Railway | Isle of Mull Railway | IMUR | |
| Independent Coach Company | Independant Coach Company Ltd | INDC | |
| Invictabus Ltd (Aylesford) | Invictabus Ltd | INVC | |
| Invincible Coaches | Invincible Coaches Ltd | INVN | |
| Isle of Man Steam Railway | Isle of Man Steam Railway | IOMR | |
| Steam Packet | Isle of Man Steam Packet | IOMS | |
| Cowes Ferry | Isle of Wight Council (Cowes Ferry) | IOWC | |
| Mrs Iris P MacKay (aka Mathers) | Iris P Mackay | IPMK | |
| Ipswich Buses | Ipswich Buses Ltd | IPSW | |
| Irish Ferries | Irish Ferries | IRFY | |
| Irelands Taxis | Anthony Edward Phoenix & Duncan Proctor | IRLX | |
| Irvine's Coaches | Peter Irvine | IRVC | |
| Irving of Dalston | George Tinniswood Irving | IRVD | |
| Irvings Coach Hire Ltd | Irvings Coach Hire Ltd | IRVI | |
| I & S Coaches | Hereford | ISCH | |
| Isle Coaches | John Bannister | ISLE | |
| Islay Coaches | B Mundell Ltd | ISLY | |
| Isles of Scilly Steamship Co | Isles of Scilly Steamship Co | ISSC | |
| Ian's Travel Services (Gateshead) | Ian Kane | ITSV | |
| Ivel Sprinter | Ivel Sprinter | IVEL | |
| Isle Valley Transport | Edward Patrick Watts | IVTR | |
| Ieaun Williams Coaches (Caernarfon) | Ieaun Wyn Williams & Partners | IWCO | |
| Iain William Davidson | Iain William Davidson | IWDV | |
| Isle of Wedmore RT Assoc. | Isle of Wedmore RT Assoc. | IWRA | |
| Jackies Coaches | Duncan William Pratt & Jacqueline Pratt | JACK | |
| Jacs Mini Coach Travel | Jacs Minicoach Travel Ltd | JACT | |
| J A & G D Nicolson | James Andrew Nicolson & George D Nicolson | JADN | |
| Evans Coaches Tregaron Limited | Evans Coaches Tregaron Limited | JAEV | |
| James Travel | James Travel | JAML | |
| Jarvis Coaches | Brian Jenkins & Marie Jenkins | JARV | |
| Jacksons of Silsden Ltd | Jacksons Of Silsden (1988) Ltd | JASI | |
| Jays Coaches | Jay Coach Travel Ltd | JAYC | |
| Jayline Travel | Jason Rogers | JAYL | |
| John Boyce Coaches (Glasgow) | John Boyce | JBCO | |
| Jason Beattie | Jason James Beattie | JBEA | |
| John Beaumont (JRT) | Huddersfield | JBMT | |
| J B Pickthall | James Barry Pickthall | JBPH | |
| Johnson Brothers | Johnson Bros Tours Ltd | JBTL | |
| James Bevan | James Bevan (Lydney) Ltd | JBVN | |
| Jeffs Coaches | Jeffs Coaches Ltd | JCOA | |
| James Cooper & Son (Cramlington) | Margaret Denise Cooper | JCOS | |
| Jackson's Coaches | Maria Jacoba Jackson & Jon Paul Jackson | JCSL | |
| J D Auto's | John Roberts | JDAT | |
| J & D Travel | Jeffrey Cobden & David George Bond | JDTL | |
| J D Travel | John Duggan | JDTR | |
| Clifton Coaches | Julie Everall | JECC | |
| Jones Executive Coaches | Jones Executive Coaches Limited | JECL | |
| JEFFS COACHES LTD | Jeffs Coaches Ltd | JEFF | |
| Jetstream Tours | JETF | ||
| John Ferguson Minibus Hirer | John Ferguson | JFGN | |
| Johnson Transport | Gary Hall Johnson | JFJT | |
| JGB Travel | JGB Travel | JGBT | |
| JG Coaches | J Gorwyn Ltd | JGCS | |
| J & G A Worth | Gillian Ann Worth & John Worth | JGWT | |
| JH Coaches | Jim Hughes Coaches Ltd | JHCL | |
| J J Travel | J J Travel Ltd | JJTL | |
| J J Travel | J J Travel and Transport Limited | JJTT | |
| Hodgsons | James Keith Hodgson | JKHY | |
| J K Murgatroyd | John Keith Murgatroyd | JKMG | |
| Jacks of Norton | Douglas John Wardle | JKNR | |
| Jones Login | Jones Motors (Login) Ltd | JLGN | |
| John L Law | John Leslie Law | JLLT | |
| John Leask and Son | Peter R Leask & Andrew J N Leask | JLSN | |
| J & L Travel | J & L Travel Ltd | JLTL | |
| J & M Burns | James Mcdonald Burns & Margaret June Burns | JMBU | |
| John Morrow Coaches | John Morrow | JMCO | |
| Judge's Mini Coaches | John David Judge | JMIN | |
| MacLeod's Coaches | John Roderick Robert Macleod | JMLC | |
| John Macquarrie | John Macquarrie | JMQU | |
| Jones Bros Coaches (Worcester) | Crump Gordon George & Maureen Anne | JNCO | |
| Johnson Coaches | JOCO | ||
| Joe's Travel | Joe'S Travel Ltd | JOES | |
| John O' Groats Ferries | John O' Groats Ferries | JOGF | |
| John's Coaches | John Richard Edwards & Amwen Pergrine Edwards | JOHN | |
| Johnson's Excelbus | Johnsons (Henley) Ltd | JOHS | |
| John Kennedy | Nancy Mackechnie | JOKN | |
| Johnson Coaches | Norman Leonard Johnson | JONN | |
| John Pike Coaches | Pikes Coaches Ltd | JPCO | |
| J P Minibus | J P Minicoaches Ltd | JPEM | |
| J P Travel | Peter Vincent Walsh & Partners | JPEX | |
| Compass Travel (Gateshead) | James Miller Russell | JRCT | |
| J R Foster | James Robert Foster | JRFY | |
| J. R .H. Travel | John Robert Hazelhurst | JRHZ | |
| J Robinson Taxis | JROB | ||
| John Ruiz (Wigton) | John Ruiz | JRUZ | |
| Jervis Coaches Ltd | Jervis Coaches Limited | JRVS | |
| JSB Travel | John James Brunskill & Sharon Brunskill | JSBT | |
| Jim Stones Coaches | James Barrington Stones | JSCS | |
| E Jones & Son | John Barry Jones & Gwyn Jones | JSON | |
| Perry's | David John Perry & Anne Holtby | JSPY | |
| John Smith and Sons | John Smith & Sons Ltd | JSSN | |
| JST International (Uttoxeter) | Jst International Ltd | JSTI | |
| J & S Travel | Jst (Darwen) Ltd | JSTL | |
| John's Travel (Merthyr Tydfil) | Eleanor Davies | JTMT | |
| Jason Tours | Jason Tours Ltd | JTRS | |
| Jamie's Transport Services (Montrose) | James N Kennedy-Pratt | JTSV | |
| John's Travel (Wrexham) | John Forster Hammersley Ithell | JTWR | |
| Jubilee Taxis | Jubilee Taxis | JUBL | |
| Judd's Travel | Judds Travel Limited | JUDD | |
| Julie's Cabs | Julie Christina Anning | JULI | |
| Just Travel | Just Travel (York) Ltd | JUST | |
| J W Coaches | J W Coaches Ltd | JWKC | |
| Jewitt's Coaches | A A Jewitt & Sons Ltd | JWTT | |
| Joynson's Coaches | Joynson's Coaches | JYNS | |
| Kidlington Assisted Transport CIC | KAST | ||
| K & B Travel | K & B Travel Ltd | KBBN | |
| K B Coaches | Kenneth Edward Baker & Partners | KBCO | |
| Travelrite | Keith Ronald J Bevan & Dorathy Sheila Bevan | KBDB | |
| Keighley Bus Museum Trust | Keighley Bus Museum Trust Ltd | KBMT | |
| Kinchbus | Kinchbus Ltd | KBUS | |
| K Cabs (North Yorkshire) | K Cabs (North Yorkshire) | KCAB | |
| Kinver Community Bus | Kinver Community Bus | KCBU | |
| Kent CC Passenger Service | Kent County Council | KCCP | |
| Kelly's Coaches of Hereford | Kelly's Coaches of Hereford | KCCS | |
| Konectbus | Konect Bus Limited | KCTB | |
| Kent Coach Tours | Kent Coach Travel Ltd | KCTR | |
| K-Ferry | Kielder Ferry | KDFS | |
| Keith and Dufftown Railway | Keith and Dufftown Railway | KDRW | |
| The Keighley Bus Company | Keighley & District Travel Ltd | KDTR | |
| N Keeley | N Keeley | KEEL | |
| Keenan of Ayr | John Keenan & Sons (Darwin Garage) Ltd | KEEN | |
| Keswick Launch Company | Keswick Launch Company | KELC | |
| Kenmore Coaches | Terence Henry Woods & Bernard Andrew Woods | KENC | |
| Ken Miller Buses (Lichfield) | Kenneth B Miller | KENM | |
| Kennections | KENN | ||
| Kens Travel | Kens Travel | KENS | |
| Mrs K MacDonald (Keose) | Mrs K MacDonald (Keose) | KEOS | |
| Kerrera Ferry | Kerrera Ferry | KERR | |
| Kestrel Coaches | Kestrel Coaches Ltd | KEST | |
| Kevs Cars and Coaches | KEVS | ||
| Kintyre Express | Kintyre Express | KEXP | |
| Kilchoan Ferry Action Group | Kilchoan Ferry Action Group | KFAC | |
| Fal River Links | Fal River Links | KHFC | |
| Cityspeed | Arvid Khokhar | KHOK | |
| Kingshouse Travel | Kingshouse Travel Ltd | KHTL | |
| Kirkham Cars | Kirklees Council | KICR | |
| CountyConnect | Kier MG Limited | KIER | |
| Kimlan Coaches (Stratford-upon-Avon) | William John Britton | KIMC | |
| Kimes Coaches | R Kime & Co Ltd | KIME | |
| Kineil Coaches | Kineil Coaches Ltd | KINC | |
| King of Kirkcowan | James King | KING | |
| Michael Edward Kinsley (Sheffield) | Michael Edward Kinsley | KINS | |
| Kingdoms Tours Ltd | KITO | ||
| KJB | Kjb (Nottingham) Ltd | KJBS | |
| York Pullman | York Pullman Bus Company Ltd | KJTR | |
| KLM Royal Dutch Airlines | Koninkijke Luchtvaart Maatschappij N.V. | KL | |
| Kirkby Lonsdale Coaches | Kirkby Lonsdale Coach Hire Ltd | KLCO | |
| K Line | Teamdeck Ltd | KLNE | |
| Air Malta | Air Malta plc | KM | |
| Kenneth MacLennan | Kenneth Maclennan | KMLN | |
| Kenneth MacSween | Kenneth MacSween | KMSN | |
| K MATT Coaches | Brendan Newall | KMTT | |
| The Kings Ferry | The Kings Ferry Ltd | KNGF | |
| Kingsman International | John A Mancini | KNGS | |
| Pilkingtonbus | Pilkingtons (Accrington) Ltd | KNGT | |
| Kingsley Coaches | Kingsley Coaches Ltd | KNGY | |
| Knighton Taxis | Knighton Taxis | KNTX | |
| Keith Readman (Middlesborough) | Keith Readman | KRCT | |
| Ken Routledge | Ken Routledge Travel Limited | KRTD | |
| Kettlewells | Kettlewell (Retford) Ltd | KRWL | |
| KSM Motors | Kenneth John Matheson & Sheila M Matheson | KSMM | |
| K.T. Travel | Ronald Joseph Taylor | KTTL | |
| Kent Top Travel | Kent Top Temps Ltd | KTTR | |
| Kelvin Valley Coaches | Robert Bruce Mackenzie | KVCO | |
| KWT Coaches | KWT Coaches | KWTC | |
| Key Coaches | Stephen Forbes | KYCO | |
| E. Kynes | E. Kynes | KYNS | |
| L A Coaches (Sale) | Andrew Rust & Louise Michell Mckinney | LACO | |
| Ladyline Coaches | Harry Lomas & Shaun Lomas | LADY | |
| Lakeside Coaches | Lakeside Coaches Limited | LAKC | |
| Links Air Ltd | Links Air Ltd | LALW | |
| Lambeth Coaches | Lambeth Coaches Ltd | LAMB | |
| L.A.M.B.S | L.A.M.B.S | LAMS | |
| Langleys of St Arvans | Langleys of St Arvens | LANG | |
| Langtoft Private Hire | Mark James Curley | LANT | |
| Luton Airport Shuttle (operated by First) | Luton Airport Shuttle (operated by First) | LASL | |
| Lavender Line Travel | Ruth Lavender | LAVR | |
| Law Bus and Coach | Margaret Walker | LAWB | |
| Little Bus Company (Leominster) Ltd | The Little Bus Co (Leo) Limited | LBCL | |
| London Bus Preservation Trust | London Bus Preservation Trust Ltd | LBPT | |
| Leicester Bus & Truck | Leicester Bus & Truck Services Ltd | LBTS | |
| Loganair | Loganair | LC | |
| Lakeland Coaches | Lakeland Commercials Ltd | LCAC | |
| London Central & General | London Central & General | LCAG | |
| Litchfield Cars | Roger Frank Litchfield | LCAR | |
| LCB Travel | L C B Travel Ltd | LCBT | |
| Lochcarron Garage | Edward & Catherine Ross | LCGG | |
| Liverpool City Sights | LCIS | ||
| James Andrew Ashall | Lainton Coaches Ltd | LCLD | |
| Lilbourne Community Bus | Community Minibus | LCMB | |
| Bysiau Lewis Coaches | Frederick Elfed Lewis | LCOW | |
| Loonat Coaches Travel Ltd | Loonat Coaches Travel Ltd | LCTY | |
| London Docklands Light Railway - TfL | London Docklands Light Railway - TfL | LDLR | |
| Landmark Coaches | Landmark Coaches Ltd | LDMK | |
| Liskeard & District Omnibus Co. | Liskeard & District Omnibus Co Ltd | LDOC | |
| Lindsay Coaches (Isle of Uist) | Alexander Lindsay | LDSY | |
| Leander Travel (Stoke on Trent) | Transport Direct Ltd | LEAN | |
| Lecks Travel | Ian Newby | LECK | |
| Lecks Travel | Lecks Travel Limited | LECS | |
| Leedham's Garage | David Leedham & Brenda Mary Leedham | LEED | |
| Mitcham Belle | Leggs Travel Ltd | LEGG | |
| Lehane | Lehane Travel Ltd | LEHN | |
| The Big Lemon | The Big Lemon C.I.C. | LEMN | |
| Leons Coach Travel (Stafford) Ltd | Leons Coach Travel (Stafford) Ltd | LEON | |
| Lewis Coaches | Andrew Mark Lewis | LEWC | |
| London General | London General Transport Services Ltd | LGEN | |
| Lufthansa | Deutsche Lufthansa AG | LH | |
| The Royal Marines Museum | Southsea | LHNT | |
| Lakeside & Haverthwaite Railway | Lakeside & Haverthwaite Railway | LHRW | |
| Liddell Coaches | James Liddell | LIDL | |
| Link Line Travel | Link Line Travel (Southport) Ltd | LILT | |
| Link Hire Taxi | Link Hire Taxi | LINK | |
| Lippen Coaches (Paisley) | Christine Graham | LIPP | |
| L J Coaches LTD | Lj Coaches Ltd | LJCL | |
| Llew Jones Coaches | Llew Jones Ltd | LJCO | |
| Little Jim's | James Harry Petty | LJIM | |
| Lewis Y Llan | Bysus Lewis-Y-Llan Cyfyngedig | LLAN | |
| Loch Lomond Bus Services | Loch Lomond Bus Services Ltd | LLBS | |
| Lloyds Coaches | David Wyn Lloyd | LLCO | |
| Llangollen Railway | Llangollen Railway | LLGN | |
| Lloyd's Taxis | Gruffydd Malcolm Lloyd | LLTX | |
| L & M Coaches | David Edwards & Partners | LMCO | |
| Longmynd Travel | Longmynd Travel Ltd | LMDT | |
| LMS Travel | Mumtaz Ali & Partners | LMST | |
| Local Motion | Local Motion | LMTN | |
| Lochs Motor Transport | Lochs Motor Transport Ltd | LMTR | |
| Lakes Minibus Travel (Windermere) | Gregory Edward Bateson | LMTW | |
| Linburg | Linburg Touring Limited | LNBC | |
| Lower Nidd Community Bus | Lower Nidd Community Bus | LNCB | |
| Lundy Ferry | Lundy Ferry | LNDY | |
| Longstaff's | Longstaff'S Garage Ltd | LNGG | |
| Longstaff of Mirfield | Terence Lyles & Howard Lyles | LNGS | |
| Linkar Hire Limited | Linkar Hire Limited | LNKR | |
| Link Network | LNNE | ||
| Lane's Coaches | Graham William Clarke | LNSC | |
| The Blackburn Bus Company | Lancashire United Ltd | LNUD | |
| Longridge Coaches | Shahid Riaz | LOCO | |
| Lothian Community Transport | Lothian Community Transport | LOCT | |
| JW Lodge & Sons | J W Lodge & Sons Ltd | LODG | |
| Logic Bus | Logic Bus | LOGB | |
| Logan Tours | Logans Tours Ltd | LOGN | |
| London Central | London Central Bus Co Ltd | LONC | |
| Lords Coaches | Nigel Lord | LORD | |
| Lothian Buses | Lothian Buses Limited | LOTH | |
| Lowes Coaches | Lowes Coaches Ltd | LOWE | |
| Little Red Bus | Bentham Development Trust | LRBU | |
| Linkrider Coaches | Swanage Taxis Ltd | LRDR | |
| Lewis Rhydlewis | Lewis Rhydlewis Cyf | LRLD | |
| formerly Channel Express | Dart Group PLC | LS | |
| Looe Shuttle | John Pickering | LSHT | |
| London Sovereign | London Sovereign Ltd | LSOV | |
| Lord's Travel | Paul Moden | LTEA | |
| Langston & Tasker | Joan Langston & Margaret Ann Fenner | LTKR | |
| Littles Travel | Little Transport Ltd | LTLS | |
| Lower Thames and Medway Boat Company | Lower Thames and Medway Boat Company | LTMC | |
| Libra Travel | Libra Travel Ltd | LTRV | |
| Turk Launches | Turk Launches | LTUL | |
| Lucketts Travel | H Luckett & Co Ltd | LUCK | |
| Lutterworth Coaches | Lutterworth Coaches Ltd | LUCO | |
| Lucketts of Watford | LUCW | ||
| Ludlows of Halesowen | Ludlows Of Halesowen Ltd | LUDL | |
| London Underground (TfL) | London Underground Limited | LULD | |
| London United | London United Busways Ltd | LUTD | |
| Ludlow Travel (Telford) | John Alan Ludlow & Sylvia Margaret Ludlow | LUTR | |
| Luxecabs | Luxecabs Ltd | LUXC | |
| London Vintage Bus Hire | LVBH | ||
| Leven Valley Coaches | Paul William Thompson | LVCO | |
| Lugg Valley Primrose | Lugg Valley Primrose Travel Ltd | LVPR | |
| Lugg Valley Travel | Lugg Valley Travel Ltd | LVTR | |
| London Waterbus | LWBU | ||
| Lewis's Coaches of Llanrhystud | Gwyn Richard Lewis | LWCL | |
| Leadhills and Wanlockhead Railway | Leadhills and Wanlockhead Railway | LWRS | |
| Catch-a-Ride Coaches (Rotherham) | Robert Lewis | LWSR | |
| Lynroy Travel | Lynroy Travel | LYNR | |
| Lynx | Coastal Red Limited | LYNX | |
| Lynx Solutions | Lynx Solutions Ltd | LYXS | |
| Macpherson Coaches | Macpherson Coaches Ltd | MACP | |
| MagicBus | The Yorkshire Traction Co Ltd | MAGB | |
| MagicBus (Scotland) | Schoolbus Ltd | MAGC | |
| Maghull Coaches | Bernard Kevin Reilly | MAGH | |
| MagicBus (Merseyside) | Glenvale Transport Ltd | MAGI | |
| Magpie Travel | Magpie Travel Ltd | MAGP | |
| Martins Car Hire | MAHT | ||
| Malbank Coaches | Peter John Williamson & Patricia Ann Williamson | MALB | |
| Manns Travel | Manns Travel Ltd | MANN | |
| Manor Travel | Manor Travel Ltd | MANR | |
| Sandhu & Mann Bus and Coach Co | Sandhu & Mann Bus and Coach Co | MANW | |
| Ronaldsway Airport | Isle of Man | MANX | |
| Marchants Coaches | Marchants Coaches Ltd | MARC | |
| Mario Coaches | MARI | ||
| Marriotts Travel | David Walter Marriott & Sheila Marriott | MARR | |
| A A Mason Coaches | Ann Mason | MASC | |
| MASS Brightbus | Mas Special Engineering Ltd | MASE | |
| A H Martin & Sons (Abergavenny) | Martin A J & W R & Whitcombe G R | MASN | |
| Mass Transit | Mas Special Engineering Ltd | MASS | |
| Matthews Coaches | J P Lloyd Ltd | MATC | |
| Matthew's Travel | Matthew Newall | MATT | |
| Maude's | Stephen Richard Maude | MAUD | |
| Mawley Oak Private Hire | Mawley Oak Garages Ltd | MAWL | |
| Cliff Maybury and Company | Cliff Maybury and Company | MAYB | |
| Mayne's Coaches | Maynes Coaches Ltd | MAYC | |
| Stowmarket Minibus and Coach Hire | Stowmarket Minibus & Coach Hire Ltd | MBCH | |
| Metrobus (operated by Go Ahead London) | London General Transport Services Ltd | MBGA | |
| Megabus Gold | Western Buses Ltd | MBGD | |
| Marbill Coaches | Marbill Coach Services Ltd | MBLC | |
| M & B Travel | M And B Mini Buses Ltd | MBMB | |
| Mark Bland Travel | Mark Bland Travel Ltd | MBTR | |
| Mere Brow Taxis | David Maxwell Magill | MBTX | |
| Minibus Plus | MBUP | ||
| Merseybus | Merseybus Ltd | MBUS | |
| Mountbatten Water Taxis | Mountbatten Water Taxis | MBWT | |
| McCreadies Coaches | Liam Thomas Mccreadie | MCAD | |
| MacKenzie Coaches | Mackenzie Coaches Ltd | MCCH | |
| McCall's Coaches | Mccall'S Coaches Ltd | MCCL | |
| McEwen Travel | McEwens Coaches Ltd | MCET | |
| MacEwan's Coach Services | John Macewan | MCEW | |
| McGill's Bus Service | Mcgill'S Bus Service Ltd | MCGL | |
| McCulloch's Coaches | Douglas F McCulloch & Elpeth A McCulloch | MCHC | |
| MacKay's Coaches | Hugh A Mackay & Marlene Mackay | MCKC | |
| Hugh A Mackay & Marlene Mackay | Hugh A Mackay & Marlene Mackay | MCKY | |
| Metcalfe Coaches Limited (Carlisle) | Metcalfe Coaches Ltd | MCLD | |
| Mclaughlin's Mini Tours | Anthony Mclaughlin & Jason Barrymore-Cox | MCLG | |
| McColls Coaches | Mccoll'S Coaches Ltd | MCLS | |
| McCormick's Coaches | Charles McCormick | MCMK | |
| McNairn Coaches | John Mcnairn | MCNN | |
| Metro Coaches (Stockton-on-Tees) | Lewis John Palmer | MCOA | |
| Moray Council | The Moray Council Education Authority | MCOL | |
| Manchester Community Transport | Manchester Community Transport Limited | MCTR | |
| Community Transport Services | Community Transport Services | MCTS | |
| Midland Choice Travel (Liyell Ltd) | Liyell Ltd | MCTV | |
| Maurice's Taxis | Maurice Crake | MCTX | |
| MD Bus & Coach | MDBC | ||
| MacDonald Bros (Isle of South Uist) | Hector Macdonald & D J Macdonald | MDBS | |
| Midland Bus Company | Midland Bus Company | MDBU | |
| Midland Classic | Midland Classic Limited | MDCL | |
| Midhurst Community Bus | Midhurst Community Bus | MDCM | |
| Mid Devon Coaches | Kenneth John Wills | MDCO | |
| Maldon District Community Transport | Maldon District Community Transport | MDCT | |
| Midland | Liyell Ltd | MDLD | |
| M & D Mini Coaches | M & D Mini Coaches Ltd | MDMC | |
| West Midlands Metro | Travel Midland Metro | MDMT | |
| Manchester & District Transport for Sick Children | Manchester & District Transport for Sick Children | MDTP | |
| Mundole Taxis | Thomas A Ross | MDTX | |
| Jeakins Coach Travel | Jeakins Limited | MEDT | |
| Megabus | Stagecoach | MEGA | |
| Meopham Community Bus | Meopham Community Bus | MEOP | |
| Merediths Coaches | Merediths Coaches Ltd | MERE | |
| Merlins Ark | Equalstorm Ltd | MERL | |
| Merlin Travel | MERT | ||
| Mervyn's Coaches | Mervyn Annetts & Partners | MERV | |
| Messenger's Coaches (Carlisle) | Messengers Coaches Ltd | MESR | |
| Metrolink | Greater Manchester Metro Ltd | METL | |
| Metrobus | Metrobus Ltd | METR | |
| MET Taxis | MET Taxis | METX | |
| MagicBus (Manchester) | Greater Manchester Buses South Ltd | MGIC | |
| Magnet Express | Trevor Orlando Wisdom & Kay Wong | MGNT | |
| M & H Coaches | Margaret Owen | MHCO | |
| Mike Halford Mini Coaches | Michael Gordon Halford | MHMC | |
| MHS Travel | Mhs Travel Limited | MHST | |
| Mark A Hobson | Mark Anthony Hobson | MHTR | |
| Ian's Midi Coaches (Carlisle) | Ian Murray | MIDI | |
| Midland Minicoaches | Midland Minicoaches | MIDM | |
| Midnorth Minibuses | Midnorth Minibuses | MIDN | |
| Midland Rider | Midland Rider Ltd | MIDR | |
| Midway Motors | Midway Motors (Crymych) Ltd | MIDW | |
| Midland General | The Midland General Omnibus Company Ltd | MIGN | |
| Mikro Coaches | Robert John Meakin | MIKO | |
| Milligans Coach Travel | Milligan'S Coach Travel Ltd | MILC | |
| Cruisers | Cruisers Ltd | MINI | |
| Minsterley | Minsterley Motor Services Ltd | MINS | |
| Mintax | Colin Minard | MINT | |
| Minerva Travel | Stephen Bryan Petty | MINV | |
| Michael's Travel | Michael Henry Davis | MITL | |
| Mitchells of Plean | John Mitchell | MITP | |
| M + J Coaches | M + J Coaches | MJCO | |
| M & J Harcus | James Harcus & Kenneth James Harcus | MJHC | |
| M & J Travel | J E & J M Price | MJTR | |
| Mackie's Coaches | James L Mackie | MKCO | |
| Milton Keynes Community Transport | Milton Keynes Community Transport | MKCT | |
| Hearson Coaches | Malcolm Keith Hearson | MKHL | |
| Arriva MK | M K Metro Ltd | MKMT | |
| Maker with Rame Community Bus | Maker with Rame Community Bus | MKRC | |
| MK Community Transport | MK Community Transport | MKTR | |
| McKenzie Travel | Mckenzie David James And Mckenzie Michelle Louise | MKZT | |
| Millington Buses | Richard Glyn Millington | MLBU | |
| M-Line Coaches | M-Line International Coaches Ltd | MLCO | |
| Millers Coaches | Millers Coaches Scotland Ltd | MLLC | |
| Millennium Travel (Lochgelly) | Adam M Fernie | MLNM | |
| Meridian Bus | Norman Ronald Dawes | MLTV | |
| M & M Coaches | Mohammed Iqbal | MMCO | |
| Murdo MacIver | Murdo N Maciver | MMIV | |
| Marchwood Motorways Taxis | Marchwood Motorways Taxis | MMTS | |
| Monmouthshire County Council | Monmouthshire County Council | MNCC | |
| Mendip Community Transport | Mendip Community Transport | MNCT | |
| MET Coaches | Minibus Executive Travel Ltd | MNET | |
| JMJ Travel Ltd | Terrance Jones & Joanne Jones | MNPH | |
| Munro's of Jedburgh | Munro'S Of Jedburgh Ltd | MNRO | |
| Mobility Assist | Mobility Assist | MOBA | |
| Mobility Link | Mobility Link | MOBL | |
| Moffat & Williamson | Moffat & Williamson Ltd | MOFF | |
| MoorsBus | MoorsBus | MOOR | |
| Morrison Travel | Angus Morrison | MORR | |
| Morton Coaches | Peter Gordon Holmes | MORT | |
| Mostonian 2000 Coaches | Christopher John Painter | MOST | |
| J Motley & Son | Christopher Sean Motley | MOTL | |
| Motts Travel | Motts Coaches (Aylesbury) Ltd | MOTT | |
| Moving People | Moving People Limited | MOVP | |
| Moxons Tours | C W Moxon Ltd | MOXN | |
| M Pearson Coaches | Michael Pearson | MPCO | |
| MacPhails Coaches | Macphails Coaches Ltd | MPCS | |
| Menzies Private Hire | Donald Stuart Menzies | MPHS | |
| Millport Motors | Millport Motors Ltd | MPOM | |
| Meridian Bus | Britannia Bus Ltd | MRBU | |
| MRD Ltd | M R D Ltd | MRDL | |
| MacRae Kintail | Lexy Alice Macrae | MRKT | |
| Morris Travel | Morris Travel Ltd | MRRS | |
| Gavin Murray Ltd (& Ellisons Coach) | Gavin Murray Ltd | MRRY | |
| Morrisons Coaches | Stuart Morrison & Catherine Morrison | MRSN | |
| Michael Robinson Travel | Michael Robinson & Partners | MRTL | |
| Maritime Travel | Maritime Travel | MRTM | |
| Martins Coach Travel (Livingston) | Anthony John Martin | MRTN | |
| Mortons Travel | MRTT | ||
| M & S Bus | M & S Bus | MSBU | |
| Marshalls Coaches | Marshall's Coaches LLP | MSHC | |
| Ian Marshall | Ian Marshall | MSHL | |
| M S K MINI Coaches | M S K MINI Coaches | MSKM | |
| J B & M S Morrison | J D & P A Morrison | MSMO | |
| Masons Travel | Masons Travel | MSNT | |
| Marshalls of Sutton on Trent | John Ashling Marshall | MSOT | |
| Mevagissey Ferry | Mevagissey Ferry | MSSW | |
| Merseyguides Association | Merseyguides Association | MSYG | |
| Thomas Cook Airlines | Thomas Cook Airlines Limited | MT | |
| McLeans Taxis and Coach Hire | William McLean & Partners | MTCH | |
| Mountain Goat Holidays and Tours | Mountain Goat Ltd | MTGT | |
| Metroline Travel | Metroline Travel Limited | MTLN | |
| Marsland Travel | Marsland Travel Limited | MTLY | |
| M Travel Mini Buses Ltd | M Travel Minibuses Ltd | MTRL | |
| M Travel Ltd | M Travel Ltd | MTRV | |
| Mount Taxis | Donald Horsfall & Partners | MTTL | |
| Mike's Travel | Beverly Cainey | MTVL | |
| Motorway Travel | Motorway Travel | MTWY | |
| Milnthorpe Taxi Services | Milnthorpe Taxi Services | MTXS | |
| Mullany's Buses | Mullanys Coaches Ltd | MULB | |
| Mullany's Coaches | Mullanys Coaches Ltd | MULC | |
| Mulleys Motorways | Mulleys Motorways Ltd | MULM | |
| Murdo MacDonald (Isle of Skye) | Murdo Alexander Macdonald | MURM | |
| Murphy's Taxis | Murphy's Taxis | MUTX | |
| Meon Valley Community Bus | Meon Valley Community Bus | MVCB | |
| Malvernian Tours Ltd. | Malvernian Tours Ltd | MVTL | |
| Mid Wales Travel | Mid-Wales Motorways (1963) Ltd | MWLM | |
| Marchwood Motorways | Marchwood Motorways (Southampton) Ltd | MWMW | |
| M W Nicoll | M W Nicoll Hirers (Laurencekirk) Ltd | MWNC | |
| C G Myall & Son | Andrew Cyril Myall | MYAL | |
| Myles Minibus | Matthew Myles | MYLM | |
| A Mayne Coaches Ltd (Warrington) | Mayne Coaches Ltd | MYNC | |
| Merseypride Travel | David Alexander & Tracey Hannell | MYPD | |
| Maytree Travel Ltd | Maytree Travel Ltd | MYTR | |
| Ellisons Coaches | Alan Alfred Ellison | NAAE | |
| A B Coaches | A B Coaches Ltd | NABC | |
| Airbles Bus Company | Airbles Bus Company Limited | NABL | |
| Unknown bus operator | Unknown | NABO | |
| A+C Coaches | A & C Coaches Ltd | NACC | |
| Alexcars | Alexcars Ltd | NACL | |
| Newton Abbot Community Transport | Newton Abbot Community Transport Association | NACT | |
| Newbury & District | Newbury & District Limited | NADS | |
| New Adventure Travel | New Adventure Travel Ltd | NADT | |
| Argyll Ferries | Argyll Ferries | NAFL | |
| Unknown ferry operator | Unknown | NAFO | |
| Akcess | Akcess Ltd | NAKL | |
| Arthurs Coaches | Thomas Douglas Arthur | NART | |
| Nash's Coaches | Nash'S Coaches Ltd | NASH | |
| National Express | National Express Ltd | NATX | |
| Nauticalia Ferry | Nauticalia Ferry | NAUT | |
| Barc Coach Hire | Thomas Neil Hughes & Keith Gibb | NBAR | |
| North Birmingham Busways | Shady Lane Property Limited | NBBW | |
| Piers Buses | Bristol Greyhound Limited | NBGY | |
| Northumbria Mini Coaches | Barrie Glenn Smith | NBMC | |
| NBM Hire Ltd | Nbm Hire Ltd | NBMH | |
| Bennetts of Kilwinning | John Bennett | NBNT | |
| Black & White Motorways | Black & White Motorways Ltd | NBWM | |
| Charlie Browns Buses | Peter David Brown | NCBB | |
| NCB Motors | Ncb Motors Ltd | NCBM | |
| Cathedral Coaches | Cathedral Coaches Ltd | NCCA | |
| Creich Croik and Kincardine Day Care Association | Creich | NCCK | |
| City Cruises | City Cruises | NCCR | |
| Coalfield Community Transport | Coalfield Community Transport | NCCT | |
| Central Taxis | Central Taxis (Aberdeen) Ltd | NCEN | |
| Cromarty Ferry Company | Cromarty Ferry Company | NCFC | |
| Clydelink | Clydelink | NCLK | |
| Cruise Loch Lomond | Cruise Loch Lomond | NCLL | |
| Crosville Motor Services | Crosville Motor Services Ltd | NCMS | |
| Newborough Coaches | Newborough Coaches Ltd | NCOA | |
| Network Colchester | Burtons Coaches Ltd | NCOL | |
| NCP Challenger | NCP Challenger | NCP1 | |
| NCP Interline | NCP Interline | NCP2 | |
| Complete Pleasure Boats | Complete Pleasure Boats | NCPB | |
| National Car Parks | Nsl Limited | NCPK | |
| NCP Services Ltd | NCP Services Ltd | NCPS | |
| Wilsons Buses | C&R Coaches Limited | NCRC | |
| NCS Contract Services | NCS Contract Services | NCSC | |
| Citistar | Citistar Limited | NCSL | |
| Community Transport Glasgow | Community Transport Glasgow | NCTG | |
| CT Plus | Ct Plus Community Interest Company | NCTP | |
| Nottingham City Transport | Nottingham City Transport Ltd | NCTR | |
| Norse | Norse Commercial Services Limited | NCXS | |
| DA Coaches | Da Coaches Ltd | NDAC | |
| Dolphin Coaches | Dolphin Holidays (Dorset) Limited | NDCL | |
| Devonian Motor Services | Richard Mcallister | NDMS | |
| David Field | David Owen Field | NDOF | |
| Notts and Derby | Notts & Derby Traction Co Ltd | NDTR | |
| Neals | Neals Travel Ltd | NEAL | |
| Neaves Coaches | H S Neave & Son Ltd | NEAV | |
| New Enterprise Coaches | Arriva Kent & Surrey Ltd | NECO | |
| North East Equality and Diversity | NEED | ||
| Rosevidney Travel | Edwin John Hosking | NEJH | |
| Lothian Country Buses | Lothian Country Buses Limited | NELB | |
| Nene and Ouse Community Transport | Nene and Ouse Community Transport | NENO | |
| Pygall's Coaches | Keith James Pygall | NEPC | |
| Arriva Harlow | Arriva Kent Thameside Ltd | NETH | |
| Tony's Taxis | Anthony Birch | NETT | |
| Newbury Buses | Reading Transport Ltd | NEWB | |
| Newbury Coaches | Ledbury | NEWC | |
| Newtons Travel (Newport) | Robert Newton | NEWT | |
| Nottingham Express Transit (Tram) | Nottingham Express Transit (Tram) | NEXT | |
| Norfolk Coachways | Christopher John Birchnall & Partners | NFCW | |
| Stagecoach East | Go West Travel Ltd | NFKG | |
| Freddies Taxis | Classy Taxis Ltd | NFRE | |
| Festival Travel | Festival Travel (Scotland) Ltd | NFST | |
| Nefyn | Nefyn Coaches Limited | NFYN | |
| Nightingales of Beccles | Nightingales Of Beccles Ltd | NGBC | |
| Nightingale Coaches | Garry Johnson | NGLC | |
| Hegarty Travel | Hemmings Coaches Ltd | NHCL | |
| Hackney Community Transport | Hackney Community Transport | NHCT | |
| North Harris Motor Services | Ewan Cameron | NHMS | |
| National Holidays | National Holidays Ltd | NHOL | |
| Highland Translink | Highland Translink Ltd | NHTL | |
| New Horizon Travel | New Horizon Travel Ltd | NHZN | |
| NIBSbuses | NIBSbuses Limited | NIBS | |
| Nip-On Transport Service | Kenneth George Hatton | NIPT | |
| J & J Minibuses | J & J Minibuses | NJAJ | |
| JAS Transport | James Dever | NJAS | |
| JD Coaches | John Donnelly | NJDC | |
| John Gallagher Travel | John Gallagher | NJGR | |
| JMB Travel | J M B Travel Ltd | NJMT | |
| James Robertson | James Robertson | NJRO | |
| NJ Travel | NJ Travel | NJTR | |
| N K Brown (Brampton) | Norman Keith Brown | NKBN | |
| Kinch Coaches | Kinch Coaches Ltd | NKCL | |
| Calne Travel | Klaus Karl Witte | NKKW | |
| Lochaber Action on Disability | Lochaber Action On Disability | NLAD | |
| North Lincolnshire Council | North Lincolnshire Council | NLCL | |
| Northlink Ferries | Northlink Ferries | NLKF | |
| MacKenzie Bus | Mackenzie Bus & Coach Services Ltd | NMCK | |
| Gardiners NMC | Gardiners NMC Ltd | NMCL | |
| Nick Maddy Coaches (Hereford) | Nicholas James Maddy | NMCO | |
| McCreadies Coaches | Liam Thomas Mccreadie | NMCR | |
| Morvern Community Transport Association | Morvern Community Transport Association | NMCT | |
| M A MacDonald | Murdo Alexander Macdonald | NMJM | |
| Islay Sea Safari | Nicol MacKinnon | NMKN | |
| M R Minibus | Ian David Murray & Kenneth Milne Ross | NMRM | |
| Muirs Coaches | Muir'S Coaches Ltd | NMUI | |
| North Area Transport Association | North Area Transport Association | NNAT | |
| North Norfolk Community Transport | NNCT | ||
| The Durness Bus | Nicholas Hird | NNIH | |
| North West Community Bus Association | North West Community Bus Association | NNWC | |
| Travelspeed of Burnley (Northern Blue) | Travelspeed of Burnley (Northern Blue) | NOBL | |
| Nottingham Coaches | Nottingham Coaches Ltd | NOCL | |
| CT4N | Nottingham Community Transport Ltd | NOCT | |
| NORDCAT | Nordcat Services Ltd | NORC | |
| Nordi Travel | Nordi Travel Ltd | NORD | |
| NottsBus | Nottinghamshire County Council | NOTB | |
| Nippy Bus | Nippy Bus Ltd | NPPY | |
| RB Coaches | R.B. Coaches Limited | NRBC | |
| Rural Development Trust | Rural Development Trust | NRDT | |
| Rover European Travel | Rover European Ltd | NRET | |
| Norfolk Line | Maersk | NRKL | |
| Redwoods Travel | Redwoods Travel Ltd | NRTL | |
| Scottish Borders Council | Scottish Borders Council | NSBC | |
| North Somerset Council | North Somerset Council | NSCC | |
| Stockhams Coaches (Crickhowell) | Nancy Stockham | NSCO | |
| Scoraig Ferry | Scoraig Ferry | NSCR | |
| Snowdrop East End Express | Snowdrop East End Express | NSEE | |
| Number Seven Boat Trips | NSEV | ||
| Skye Ferry Community Interest Company | Skye Ferry Community Interest Company | NSFC | |
| Sovereign Coaches | Richard Charles Keech & Cynthia May Keech | NSGC | |
| Newent Shuttle | Newent Shuttle | NSHT | |
| NSL | Nsl Limited | NSLA | |
| North Somerset Coaches | David Fricker | NSOM | |
| Sweeneys Cruises | Sweeneys Cruises | NSWC | |
| Northumbria Coaches | Adrian Grant Smith | NTCS | |
| New Testament Transport | New Testament Transport | NTES | |
| Classic | TGM Group Limited | NTGM | |
| Thames Clippers | Thames Clippers | NTHC | |
| Jacketts Coaches | Trevellyan Jackett | NTJC | |
| Thomas Murphy | Thomas Murphy | NTMY | |
| Thames River Services | Thames River Services | NTRS | |
| National Trust Shuttle (Liverpool) | The National Trust | NTSH | |
| Ulva Ferry | Ulva Ferry | NULV | |
| Nottingham University Hospital | Nottingham University Hospital | NUNH | |
| Nuttalls Coaches | NUTT | ||
| Nu-Venture | Nu-Venture Coaches Ltd | NVTR | |
| N.W. Airport Bus | Mariusz Terpilowski | NWAB | |
| Pilkingtonbus | Boomerang Travel Ltd | NWBT | |
| Wealdlink Community Transport | North Wealden Community Transport Partnership | NWCT | |
| Wheel Drive | Wheel Drive Ltd | NWDL | |
| Woolwich Free Ferry | Woolwich Free Ferry | NWFF | |
| Garstang Cars | Garstang Cars Ltd | NWGC | |
| Gary Strickland | Gary Strickland | NWGS | |
| Halton Community Transport | Anthony Bamber & Partners | NWHC | |
| Catch 22 Bus | Catch22Bus Ltd | NWOT | |
| Newport Bus | Newport Transport Ltd | NWPT | |
| Street Cars | Lynne Rasburn | NWSC | |
| Stagecoach Merseyside and South Lancashire | Glenvale Transport Ltd | NWSW | |
| Tomlinson Travel | Ian Andrew Tomlinson | NWTT | |
| Apple Yard Travel | William Bradley | NWWB | |
| National Express Airport | National Express Ltd | NXAP | |
| Bus Eireann | Bus Eireann | NXBE | |
| Nexus Metro Replacement | Nexus Metro Replacement | NXBM | |
| Nexus Buses | Go North East Limited | NXBZ | |
| National Express Hotel Hoppa | National Express Ltd | NXHH | |
| Tyne and Wear Metro | Nexus Metro | NXMT | |
| The Oxford Bus Company | The City Of Oxford Motor Services Ltd | NXOE | |
| Nexus Ferry | Nexus Ferry | NXSF | |
| National Express Shuttle | National Express Ltd | NXSH | |
| National Express/Traws Cambria | National Express/Traws Cambria | NXTC | |
| North Yorkshire County Council | North Yorkshire County Council | NYCC | |
| Yules Buses | John D W Yule | NYUB | |
| On A Mission Coaches | On A Mission Coaches Llp | OAMC | |
| Oares Coaches Ltd | Oares Coaches Ltd | OARS | |
| Our Bus | Our Bus | OBUS | |
| Oswestry Community Action (Qube) | Oswestry Community Action (Qube) | OCAC | |
| Orchard Travel | Orchard Travel | OCHD | |
| One Community Transport | One Community Transport | OCMT | |
| Our Centre | Our Centre | OCNT | |
| Oban and District Buses | Oban & District Buses Ltd | ODBL | |
| Evans Llaniestyn | Owen Gwilym Evans | OELL | |
| oxford express (operated by Oxford Bus Company) | The City Of Oxford Motor Services Ltd | OEXP | |
| OFJ Connections | OFJ Connections Limited | OFJC | |
| Ogden Coaches | David John Ogden | OGDC | |
| O R Jones | O R Jones & Sons Ltd | OJNS | |
| Okehampton District Community Transport | OKED | ||
| Orkney Ferries | Orkney Ferries | OKFL | |
| Olympia Travel | Olympia Travel Uk Ltd | OLYM | |
| Olympian Coaches | Olympus Bus And Coach Limited | OLYP | |
| Olympic Coaches | Colin Galway | OMNC | |
| Omega Travel | Omega Travel Limited | OMTR | |
| Oor Coaches | Oor Coaches Ltd | OORC | |
| Avenues East Community Transport | Optua Ltd | OPTU | |
| Orion Autobus | Dario Sassarini & Margaret Sassarini | ORIN | |
| Orkneyline | Orkneyline | ORKF | |
| Ormskirk Coaches & Taxis | Manuel George Dawson Anderson | ORMS | |
| O O Smith | Hugh & Gloria Joan Milburn | OSMT | |
| OTS | Office & Transport Services Ltd | OTSS | |
| OurBus Bartons | OURB | ||
| Our Bus | Jeremy W Cushing & Darren J Littlewood | OURH | |
| Owens Coaches (Sidcup) | Owens Coaches (Sidcup) | OWCS | |
| D P Owens (Bangor) | Derfel Pritchard Owens | OWEN | |
| Owens Motors Ltd | Owens Motors Ltd | OWML | |
| Owen's Travelmaster | Owens Of Oswestry Coaches Ltd | OWNC | |
| Owens Motors | Owens Motors Ltd | OWNS | |
| Oxford Bus Company | The City Of Oxford Motor Services Ltd | OXBC | |
| Oxfordshire County Council (Integrated Transport Unit) | Oxfordshire County Council (Integrated Transport Unit) | OXFC | |
| Oxford Tube | Thames Transit Ltd | OXTU | |
| O2 Travel (LEEDS) | Mht Enterprises Ltd | OZME | |
| Point 2 Point Community Transport | Point 2 Point Community Transport | P2PT | |
| Padarn Cars | Padarn Cars | PACA | |
| Paul's Coaches | Paul Durber | PACO | |
| Partington and Cadishead Community Transport | Partington and Cadishead Community Transport | PACT | |
| P A Davies Taxis | Peter Anthony Davies | PADT | |
| Paulines Travel | Paulines Travel | PALT | |
| P & O Ferries | P & O Ferries | PAOF | |
| P & O Lloyd | P & O Lloyd Ltd | PAOL | |
| Park Cars | Park Cars | PARK | |
| K.T.Parr | Kenneth Thomas Parr | PARR | |
| Parish Minibuses | Parish Minibuses | PARS | |
| Passenger Travel | Passenger Travel Ltd | PAST | |
| Paragon Travel | Paragon Travel Limited | PATR | |
| Pat's Coaches | Pats Coaches Ltd | PATS | |
| Pattersons Coaches (Birmingham) | Patterson D F And P M | PATT | |
| Pauls Coaches | Pauls Coaches | PAUL | |
| Peak Bus & Coach | Peak Bus & Coach | PBAC | |
| J P Travel | Paul Blennarhassett & Jillian Blennarhassett | PBHJ | |
| Royal Mail Postbus (Kent Surrey & Sussex) | Royal Mail Group Plc | PBKS | |
| Padarn Bus | Padarn Bus Limited | PBLD | |
| Royal Mail Postbus (Leicestershire) | Royal Mail Group Plc | PBLE | |
| Preston Bus | Preston Bus Ltd | PBLT | |
| Pontypool & Blaenavon Railway | Pontypool & Blaenavon Railway | PBRW | |
| Plymouth Boat Trips | PBTR | ||
| Peterbus | Ashford & St Peters Hospitals Nhs Trust | PBUS | |
| PC Coaches | P C Coaches Of Lincoln Ltd | PCCO | |
| Portavadie Coach Hire | Geoffrey M Forrester | PCHR | |
| P C L Travel | Peter Ian Cowell | PCLT | |
| Phoenix Coaches | Pheonix Coaches (NE) Ltd | PCNE | |
| Canavan Travel | James & Gavin Canavan | PCVN | |
| Peterborough Dial-a-Ride | Peterborough Dial-a-Ride | PDAR | |
| Orton Community Transport Association | Orton Community Transport Association | PDRA | |
| P D Travel (Glasgow) | Philip Paul Doherty | PDTR | |
| Peterborough City Services | Peterborough City Council | PECC | |
| Pearsons Coaches | Pearson Coaches Ltd | PECO | |
| Pegasus | Chris Shepherd | PEGA | |
| Pembrokeshire County Council | PEMB | ||
| Pentland Ferries | Pentland Ferries | PENT | |
| People to Places | People to Places | PEPL | |
| Borders Buses | Perryman'S Buses Ltd | PERY | |
| P.E.T | Jacqueline Addison | PETY | |
| Polruan Ferry Co Ltd | Polruan Ferry Co Ltd | PFCL | |
| PF Travel | Paul Frost | PFTR | |
| Perrygrove Railway | Perrygrove Railway | PGRV | |
| Pegasus Travel | Pegasus Travel Ltd | PGSS | |
| Carol Peters Travel | Peter Howe & Carol Howe | PHCH | |
| Padstow Harbour Commissioners | Padstow Harbour Commissioners | PHCM | |
| Phillips Transport (Chepstow) | Brian Roy Phillips & Simon Roy Phillips | PHLP | |
| Phil's Travel | Philip John Clowes | PHLT | |
| Phoenix Transport | Phoenix Transport Ltd | PHNX | |
| Phoenix Buses | Phoenix Buses Ltd | PHOX | |
| Phillips Coaches (Holywell) | E H Phillips Motor Services Ltd | PHPS | |
| Phoenix Taxis | ReadyPay Ltd | PHXT | |
| Pioneer Travel | John Michael Whitehead | PITR | |
| Park's of Hamilton | Parks Of Hamilton (Coach Hirers) Ltd | PKOH | |
| Park Lane Minibuses Ltd | Park Lane Mini Buses Ltd | PLMB | |
| Peelings Coaches | Jonathan Robert Joplin | PLNG | |
| Plumline Coaches (PLC) | Hexham | PLUM | |
| Plymouth Citybus | Plymouth Citybus Ltd | PLYC | |
| PMH Motors | PMHM | ||
| Peter MacLennan | Peter Maclennan | PMLN | |
| Parry People Mover | Pre-Metro Operations Limited | PMOP | |
| Pennine Motor Services | Simpson Norman Daniel John Daniel Maurice Bryan | PMSV | |
| Panther Travel | Panther Travel Ltd | PNTR | |
| P&O Ferries | P&O Ferries | POFR | |
| Princess of Kendal Ltd | Princess Of Kendal Ltd | POKL | |
| Frank Poppleton and Company | Frank Poppleton & Partners | POPP | |
| Horseless Carriage Services | Mark Stewart-Clarke | POTD | |
| Powells Bus | Powells Bus Co Ltd | POWB | |
| John Powell Travel (Rotherham) | John Powell Travel Ltd | POWT | |
| Poynters Coaches | Poynters Coaches Ltd | POYN | |
| Peoples Bus | Peoplesbus Limited | PPBU | |
| Price Coaches | Tecwyn Price | PRCE | |
| P & R Coaches | P & R Coaches Ltd | PRCO | |
| Procters Coaches (Stoke on Trent) | F Procter & Son Ltd | PRCT | |
| Premier Bus and Coach | Premier Bus & Coach Ltd | PREM | |
| Primrose Coaches | PRIC | ||
| Parkside Leisure | Parkside Leisure | PRKL | |
| Park Minibus Hire | Park Minibus Hire | PRKM | |
| Parksafe Ltd | Parksafe Limited | PRKS | |
| Premier Transport | Storbrook Ltd | PRMT | |
| Premiere Travel | Premiere Travel Ltd | PRNT | |
| Procters Coaches | Procters Coaches (North Yorkshire) Ltd | PROC | |
| Parrott Motors Ltd | Parrott Motors Ltd | PROT | |
| Prompt Travel | PRPT | ||
| Preseli Rural Transport Association | C Wilson | PRTA | |
| Thomas of Rhondda | Thomas of Rhondda Ltd | PRTH | |
| Nottingham Minibus | Sughra Parveen | PRVN | |
| Priory Coaches | Priory Coach & Bus Ltd | PRYC | |
| Perrys Private Hire | Michael John Perry | PRYM | |
| Peter Reynolds | Peter John Reynolds | PRYN | |
| P & S Nelson | P & S Nelson Ltd | PSNL | |
| Paul's Private Hire | PPH Coaches Limited | PSPH | |
| Phil Smith Travel (Uttoxeter) | Journeyman (Staffordshire) Ltd | PSTR | |
| Prestwich Cars Ltd | Prestwich Cars Ltd | PSTW | |
| P & T Coaches | Charles Alan Priest & Partners | PTCO | |
| Prestige Tours | Prestige Tours Ltd | PTLD | |
| Peyton Travel | Peyton Travel Ltd | PTLW | |
| Peter Smith Coaches | Peter Smith Coaches | PTMS | |
| Platinum Coaches (Preston) | Philip James Leyland | PTNM | |
| Paul's Travel | Stephen Paul Little & Susan Claire Little | PTRA | |
| Potters Bar Coach Hire | Kevin Roland Wills | PTTR | |
| Pulfreys Coaches | Andrew John Pulfrey & John Pulfrey | PULF | |
| Pulhams Coaches | Pulham & Sons (Coaches) Ltd | PULH | |
| Puma Coaches | Anthony Morrin | PUMA | |
| Paul S Winson Coaches | Paul S Winson (Coaches) Ltd | PWCO | |
| Prentice Westwood | Prentice Westwood Ltd | PWTD | |
| Pineway Tours | John Nicholson Carter & Joyce Collinson Carter | PWTR | |
| Condor Ferries | Condor Ferries | QO | |
| Quartz Coaches (Harbury) | Cardalls Limited | QRTZ | |
| Quality Line | H R Richmond Ltd | QULN | |
| Quantock Heritage | Quantock Motor Services Ltd | QUMS | |
| Queens Drive Travel | Queens Drive Travel | QUNS | |
| Route 1 Travel Ltd | Route 1 Travel Ltd | R1TL | |
| Risborough Area Community Bus | Risborough Area Community Bus | RACB | |
| Rackford Coaches | Julie Sheldon | RACS | |
| Ramsey and District Community Bus Association | Ramsey and District Community Bus Association | RADC | |
| RAFT Services | Richard Tipper | RAFT | |
| Rainbow Travel (Harrogate) Ltd | Rainbow Travel (Harrogate) Ltd | RAIN | |
| Mr Yakub Raja & Vali Raja | Mr Yakub Raja & Vali Raja | RAJA | |
| Rambler Coaches | Rambler Coaches Ltd | RAMB | |
| Rapid Travel | Rapid Travel Ltd | RAPT | |
| Ratcliffe Buses (Egremont) | David Mitchell Ratcliffe | RATC | |
| Rayners Coaches (Durham) | John Robert Iveson Rayner & Partners | RAYN | |
| Robert Benson Coaches Ltd | Robert Benson Coaches Limited | RBCL | |
| Rubicon Classic Travel | Rubicon Classic Enterprises Ltd | RBCN | |
| Robinsons Coaches | Stewart Edward Graham | RBCO | |
| Brown's of Builth Wells | Nigel Wynn Brown | RBNC | |
| Robins's Travel (Worcester) | Robin Earnest Jock Tuffley | RBNT | |
| Richards Bros | William J M Richards & Partners | RBRO | |
| Roberts Mini Coaches (Abergele) | William Thomas Roberts | RBRS | |
| R & B Travel | Alan Thomas Radnor & Lorraine Elizabeth Radnor | RBTR | |
| Roberts Coaches | Roberts Tours Ltd | RBTS | |
| Robertson's Transport | RBTT | ||
| Reading Buses | Reading Transport Ltd | RBUS | |
| Atlantic Airways | Atlantic Airways | RC | |
| Redcar & Cleveland Borough Council | Redcar & Cleveland Borough Council | RCBC | |
| Richmonds Coaches | H V Richmond Ltd | RCHC | |
| Routespek | Routespek Coach Hire Ltd | RCHS | |
| Rushton Community Minibus | Community Minibus | RCMB | |
| Rochdale Community Transport | Rochdale Community Transport | RCMT | |
| Red Bus | James Fitzpatrick | RDBS | |
| Nexus Move | Radio Cabs (Ashton) Ltd | RDCA | |
| Reids Coaches | Colin E Reid | RDCO | |
| Redditch Dial-a-Ride | Redditch Dial-a-Ride | RDDR | |
| Red Dragon Group | Red Dragon Group | RDGR | |
| Rethink Disability | Rethink Disabilty | RDIS | |
| Red Kite Commercial Services | David Hoar & Robert Hamilton Savage | RDKC | |
| Roadliner Travel | Worldflight Ltd | RDLN | |
| Radmores Coaches | John Mervyn Williams | RDMC | |
| R & D Motors | R & D Motors | RDMT | |
| Redroute Buses | Redroute Buses Ltd | RDRT | |
| Rendall's Travel | Philip Rendall | RDTR | |
| Ridgways | Darren K Ridgway | RDWY | |
| Stobart Air | Comhfhorbairt (Gaillimh) Limited | RE | |
| Real Coach Hire | New Road Service Station Ltd | REAL | |
| Reay's Minibus Services | Reays Limited | REAM | |
| Reays Coaches | Reays Coaches Ltd | REAY | |
| Red Circle Coach Hire | Graham Lemons | RECI | |
| Redwing Coaches | Pullmanor Ltd | REDC | |
| Red Eagle | Red Eagle Buses Ltd | REDE | |
| Redfern Travel | Redfern Coaches (Mansfield) Ltd | REDF | |
| Redline Travel | Redline Travel Ltd | REDL | |
| Redwing Contracts Limited | Redwing Contracts Limited | REDW | |
| Rees Motors | Neville Albert Rees & Partners | REES | |
| Reg's Coaches | Reg'S Coaches Ltd | REGC | |
| Reliance Motor Services | John Hunter Duff & Margaret Duff | RELD | |
| Reliance Coaches Gravesend | Reliance Coaches Gravesend Ltd | RELI | |
| Renown Coaches | Renown Transport Services Limited | RENW | |
| Reptons Coaches | Andrew John Repton & Emily Rose Ann Repton | REPT | |
| Robert Eugene Dix | Robert Eugene Dix | RESW | |
| Red Express | Red Express | REXS | |
| Reynolds Diplomat Coaches | Richard Reynolds & Susan Karin Reynolds | REYD | |
| Red Funnel | Red Funnel | RF | |
| Rogers Coaches (Worcester) | David Graham Rogers & Margaret Ann Rogers | RGCS | |
| Ravenglass & Eskdale Railway | Ravenglass & Eskdale Railway | RGER | |
| R G Jamieson & Son | Robert H Jamieson | RGJS | |
| Regal Busways | Regal Busways Ltd | RGLB | |
| Regent Coaches | Paul Conrad Regent & Kerry Jane Regent | RGNT | |
| ROLLING SOLUTIONS LTD | Rolling Solutions Ltd | RGSL | |
| Regional Transport | Regional Transport Ltd | RGTL | |
| Ravenshead Community Project | Ravenshead Community Project | RHCP | |
| Romney Hythe & Dymchurch Light Railway | Romney Hythe & Dymchurch Light Railway | RHDR | |
| R Handley & Sons Ltd | R Handley & Sons Ltd | RHSL | |
| R H Transport | Alan Hutt & Angela Hutt | RHTR | |
| Ridgeways Coaches | Ridgeways Coaches Ltd | RIDG | |
| W Ridler & Sons | Ridlers Limited | RIDL | |
| Rigby's Coaches | Rigbys Executive Coaches Ltd | RIGB | |
| Philip Rimmer Bus Hire | Philip Rimmer | RIMM | |
| Rimmers Transport & Travel Services | Kenneth John Billington | RIMT | |
| London River Services (TfL) | London River Services (TfL) | RIVR | |
| Riverside Transport | Riverside Transport Training Ltd | RIVS | |
| R & J Coaches | RJCO | ||
| R J Godson | Richard J Godson | RJGD | |
| RJ Jones Travel | Robert John Jones | RJJT | |
| R.J's of Wem / Shropshire Bus and Coach | RJ'S Of Wem Ltd | RJWS | |
| Red Kite Management Ltd (Aberystwyth) | Red Kite Management Ltd | RKCO | |
| Red Kite | Red Kite Commercial Services Limited | RKML | |
| Red Kite Travel | Mark Jeffrey Rimmer & Michael John Rimmer | RKTR | |
| R.K.Travel | RKTV | ||
| RLB Transport & Repairs Ltd | RLB Transport & Repairs Ltd | RLBT | |
| Red Line Buses | Sean Micheal Mcdermott | RLBY | |
| Rail Linc (operated by Clarkes Coaches) | Clarkes Coaches (Tredegar) Ltd | RLCC | |
| Rail Linc (operated by Llynfi Coaches) | David Henry Stolzenberg & Liam Wendell Morgan | RLLC | |
| Redline | Khan Wali Khan | RLNE | |
| Roadliner | Roadliner Passenger Transport Ltd | RLPT | |
| Ruislip Lido Railway | Ruislip Lido Railway | RLRW | |
| Rob's Minibus Hire | Rob's Minibus Hire | RMBH | |
| Routemaster Buses Ltd | Routemaster Buses Ltd | RMBL | |
| Ramsbury Community Bus | Ramsbury Community Bus | RMCB | |
| Roy McCarthy Coaches | Mccarthy Andrew And Lomas Michael Steven | RMCC | |
| Roys Minibuses | Roys Minibuses | RMIN | |
| MacLean Coaches | Ronald Maclean | RMLC | |
| RML Travel | David Thomas Brundrit | RMLT | |
| Roderick MacMillan | Roderick Macmillan | RMMN | |
| Royal Mail Post Bus | Royal Mail Group Plc | RMPB | |
| Round & About Ltd | Round & About Ltd | RNDA | |
| Royton Minibuses | David John Birley | RNMB | |
| Rennies of Dunfermline (Stagecoach) Schools | Rennies Of Dunfermline Ltd | RNND | |
| Roberts Bus & Coaches | Mary Ann Roberts | ROBC | |
| Robinsons of Hebburn | Trevor Robinson | ROBH | |
| Roberts of Rothiemay | George A Roberts & Evelyn M Roberts | ROBR | |
| Robinson's Transport | Robinson Transport (Shetland) Ltd | ROBT | |
| Rogers Coaches (Ruthin) | Eric Edward Rogers & Kevin Edward Rogers | ROCO | |
| Wigan Coachways | Rojay Services Ltd | ROJA | |
| Rosa Holdings Ltd | ROSA | ||
| Rose Hill Coaches | Rose Hill Coaches | ROSE | |
| Rosies Travel | William Patterson | ROSI | |
| Ross's Minibuses | William Ross & Edith Ross | ROSM | |
| Ross Travel | Peter Ross & Mary Ross | ROSS | |
| Rosso | Rossendale Transport Ltd | ROST | |
| Rothbury Motors | Rothbury Motors Ltd | ROTH | |
| Rothwell Travel | Rothwell Travel | ROTR | |
| Rowe Coaches | ROWC | ||
| Rowe & Tudhope Coaches | George Rowe | ROWE | |
| Ride Pegasus (operated by First Thames Valley) | Ride Pegasus (operated by First Thames Valley) | RPGS | |
| Reading RailAir | First Beeline Buses Ltd | RRAR | |
| Road Runner Community Transport | Road Runner Community Transport | RRCT | |
| R Robertson & Son | Thomas C Robertson | RRSN | |
| Red Routemaster | David Charles Russell | RRSW | |
| Red Rose Travel | Red Rose Travel Ltd | RRTR | |
| Roadrunner Coaches | Road Runner Buses Ltd | RRUN | |
| Riverside Coachways (Telford) | Riverside Coachways Ltd | RSCW | |
| 24-7 Recruitment Services | 24-7 Recruitment Services Ltd | RSLL | |
| Roselyn Coaches | Roselyn Coaches Ltd | RSLN | |
| R S Mini Coaches | Roderick Charles Bain | RSMC | |
| Rushmoor Voluntary Services | RSMV | ||
| Rossendale Travel | RSNT | ||
| Robert Stables (Keith) | Robert Eric Stables | RSTB | |
| R S Travel (Middlewich) | Raymond Stockton & Linda Ann Handley | RSTR | |
| Tyrers Coaches | Gordon Buckle & Sylvia Buckle | RSTY | |
| H S Chahal | H S Chahal | RTLY | |
| Rossendale Trailways | Peter Churnside & Michael Peter Churnside | RTRA | |
| Rainford Taxi Service | Rainford Taxi Service | RTSV | |
| Road Train Transport | Keith John Humphrey & Christopher William Hearn | RTTR | |
| Richardson Travel | Richardson Travel Ltd | RTVL | |
| Runnymede Community Transport | RUNY | ||
| Rutherfords | George Rutherford Bell | RUTH | |
| Rutland Travel | Romdrive Ltd | RUTL | |
| Ribble Valley Coaches Ltd | Ribble Valley Coaches Ltd | RVCL | |
| Ringway Mini Bus Hire | Christopher Ian Walley | RWAY | |
| R Williams | RWIL | ||
| Richard Wellesley Memorial Community Minibus | Richard Wellesley Memorial Community Minibus | RWMC | |
| Rowan Travel (Dundee) | Stephen Mackie | RWNT | |
| Rothwells Super Travel | Premiereshow Ltd | RWST | |
| R & S Watersons | Ronald Waterson & Sheila Waterson | RWSW | |
| Ryedale Community Transport | Ryecat Ltd | RYCA | |
| Ryde Taxis Ltd | Ryde Taxis Ltd | RYDE | |
| Rye Community Transport | Rye Community Transport | RYEC | |
| Ryan's Coaches Ltd | Ryans Coaches Ltd | RYNC | |
| Select Bus & Coach SABC | Ryan Jones & Partners | SABC | |
| Sarah Bell | SABE | ||
| City Sprinter | City Sprinter Limited | SACS | |
| South Ayrshire Community Transport | SACT | ||
| Safford Coaches | Saffords Coaches Ltd | SAFF | |
| Sandla Transport Services Ltd | Sandla Transport Services Ltd | SALA | |
| S and L's | SALS | ||
| Salford Community Transport | Salford Community Transport | SALT | |
| Sandwell Travel | Sandwell Travel Limited | SANT | |
| Secure Air Parks (Edinburgh) Ltd | Secure Air Parks (Edinburgh) Ltd | SAPE | |
| Sargeants Brothers | Sargeants Brothers Ltd | SARG | |
| Sargeants of Hodnet | Sidney George Sargeant | SARH | |
| Select Bus & Coach SBAC | Ryan Jones & Partners | SBAC | |
| Bay Travel | Vincent Derighetti & Iain Robertson | SBAY | |
| Scarlet Band | Scarlet Band Bus and Coach Ltd | SBBC | |
| South Beds Dial-a-Ride | South Beds Dial-a-Ride | SBDR | |
| Sandbanks Ferry | Sandbanks Ferry | SBFY | |
| St Buryan Garage | St Buryan Garage Ltd | SBGT | |
| Stagecoach North Scotland | Bluebird Buses Ltd | SBLB | |
| Sable Travel Ltd | Sable Travel Ltd | SBLE | |
| Solent Blue Line | Solent Blue Line Limited | SBLN | |
| St Budeaux Taxi Bus | Mark Legassick | SBTB | |
| SB Travel | George Walter Brunskill | SBTR | |
| SCA | SCA | SCAA | |
| SP Cars | SP Cars | SCAR | |
| Stagecoach East | Cambus Ltd | SCBD | |
| Stagecoach East Midlands | Lincolnshire Road Car Co Ltd | SCBL | |
| Scotland & Bates | Richard Malcolm Bates & Georgina Ann Bates | SCBT | |
| Scotbus | Scotbus Ltd | SCBU | |
| Stagecoach North Scotland | Highland Country Buses Ltd | SCCA | |
| Stagecoach West | Cheltenham District Traction Co Ltd | SCCD | |
| Stagecoach West | Cheltenham & Gloucester Omnibus Co Ltd | SCCH | |
| Shropshire County Council | Shropshire Council | SCCL | |
| Stagecoach East | Cambus Ltd | SCCM | |
| Stagecoach South | Stagecoach (South) Ltd | SCCO | |
| Stagecoach Yorkshire | Chesterfield Transport Ltd | SCCS | |
| Suffolk Norse | Suffolk County Council | SCCT | |
| Stagecoach Cumbria and North Lancashire | Stagecoach (North West) Ltd | SCCU | |
| Stagecoach South East | East Kent Road Car Co Ltd | SCEB | |
| Castle Euro Central Travel | Castle Euro Central (Travel) Ltd | SCEC | |
| Stagecoach South East | East Kent Road Car Co Ltd | SCEK | |
| Stagecoach East Scotland | Fife Scottish Omnibuses Ltd | SCFI | |
| Stagecoach North Scotland | Highland Country Buses Ltd | SCFL | |
| Stagecoach Gold | Midland Red (South) Ltd | SCGD | |
| Stagecoach East Midlands | Lincolnshire Road Car Co Ltd | SCGH | |
| Stagecoach West | Cheltenham & Gloucester Omnibus Co Ltd | SCGL | |
| Stagecoach East Midlands | Lincolnshire Road Car Co Ltd | SCGR | |
| Stagecoach West Scotland | Stagecoach Glasgow Ltd | SCGS | |
| Stagecoach North East | Cleveland Transit Ltd | SCHA | |
| Stagecoach North Scotland | Highland Country Buses Ltd | SCHI | |
| Stagecoach South | Stagecoach (South) Ltd | SCHM | |
| Stagecoach South | Hampshire Bus Co Ltd | SCHN | |
| Stagecoach South East | East Kent Road Car Co Ltd | SCHT | |
| Stagecoach East | Cambus Ltd | SCHU | |
| Stagecoach South | Hampshire Bus Co Ltd | SCHW | |
| Stagecoach Invergo | Bluebird Buses Ltd | SCIV | |
| Stagecoach East Midlands | Lincolnshire Road Car Co Ltd | SCLI | |
| Scottish Citylink | Scottish Citylink Coaches Ltd | SCLK | |
| Stagecoach North Scotland | Highland Country Buses Ltd | SCLO | |
| Scarlet Band | Graeme Hopkins Torrance | SCLT | |
| Stagecoach North East | Cleveland Transit Ltd | SCLV | |
| Stagecoach Cumbria and North Lancashire | Stagecoach (North West) Ltd | SCMB | |
| Scottish Citylink/Megabus jointly operated | Scottish Citylink/Megabus jointly operated | SCMG | |
| Stagecoach Greater Manchester | Greater Manchester Buses South Ltd | SCMN | |
| Stagecoach Merseyside and South Lancashire | Glenvale Transport Ltd | SCMY | |
| Stagecoach North East | Busways Travel Services Ltd | SCNE | |
| Stagecoach Midlands | Midland Red (South) Ltd | SCNH | |
| Stagecoach North East | Busways Travel Services Ltd | SCNS | |
| Stagecoach North West | Stagecoach (North West) Ltd | SCNW | |
| Coakley Bus Company | Edward Coakley | SCOA | |
| Stagecoach North Scotland | Highland Country Buses Ltd | SCOR | |
| Stagecoach West | Cheltenham & Gloucester Omnibus Co Ltd | SCOT | |
| Stagecoach Oxfordshire | Thames Transit Ltd | SCOX | |
| Stagecoach East | Cambus Ltd | SCPB | |
| Stagecoach East Scotland | Stagecoach (Scotland) Ltd | SCPE | |
| Stagecoach South | Stagecoach (South) Ltd | SCPY | |
| Stagecoach Cumbria and North Lancashire | Ribble Motor Services Ltd | SCRB | |
| Crown River Cruises | Crown River Cruises | SCRC | |
| Scorpio Services | Scorpio Services | SCRP | |
| Scraggs Taxis and Coaches | Geoffrey Edward Scragg | SCRT | |
| Caledonian Railway | Caledonian Railway | SCRW | |
| Stagecoach North East | Busways Travel Services Ltd | SCSS | |
| Stagecoach Supertram | Stagecoach Supertram | SCST | |
| Stagecoach North East | Busways Travel Services Ltd | SCSU | |
| Stagecoach North East | Cleveland Transit Ltd | SCTE | |
| Sheffield Community Transport | Sheffield Community Transport Ltd | SCTP | |
| Scottish Travel | Flosshaul Ltd | SCTS | |
| Scott's Coaches (Hexham) | William Thompson Scott | SCTT | |
| Citylink / Ulsterbus (National Coach Services) | Northern Ireland Transport Holding Company | SCUB | |
| Scottish Citylink & Ulsterbus | Scottish Citylink & Ulsterbus | SCUL | |
| Stagecoach Midlands | Midland Red (South) Ltd | SCWW | |
| Dorset Community Transport | Dorset Community Transport | SDCT | |
| South Devon Railway | South Devon Railway | SDEV | |
| Scarborough & District | East Yorkshire Motor Services Ltd | SDMS | |
| Baylink | Kayleigh Spencer and Jacqueline Stromberg | SDTA | |
| SD Travel | Samuel James Douglas | SDTR | |
| Stagecoach South West | Stagecoach Devon Ltd | SDVN | |
| Sidlaw Executive Travel (Dundee) | Sidlaw Executive Travel Scotland Ltd | SDWT | |
| Seacat | Seacat | SEAC | |
| Seaford & District | David Patrick Mulpeter | SEAD | |
| Beeline Travel | Andrew Baiocchi | SEBT | |
| Second City Travel | Victor John Barnes & Brian Leonard Kenning | SECT | |
| Flagfinders | Flagfinders (CTB) Ltd | SEFF | |
| Select Coaches | SELB | ||
| Selek Transport | SELE | ||
| South East London & Kent Bus Co | South East London & Kent Bus Co Ltd | SELK | |
| Selwyn's Travel | Selwyns Travel Ltd | SELT | |
| Selveys Coaches (Glasgow) | Thomas A G Selvey | SELV | |
| Selwyn Motors | Barry Selwyn Dodd & Queenie Dodd | SELW | |
| H Semmence & Co. | H Semmence & Co Ltd | SEMM | |
| Meritrule | Meritrule Ltd | SEOC | |
| Serco Denholm | Serco Denholm | SERC | |
| Stephensons of Essex | Stephensons Of Essex Ltd | SESX | |
| Seaventures Scotland | Seaventures Scotland | SEVS | |
| Sewards Coaches | Ivy Ann Seward & Partners | SEWR | |
| Silver Fern Coaches | Silver Fern Coaches | SFCS | |
| Safeguard Coaches | Safeguard Coaches Limited | SFGC | |
| SunFun Luxury Travel | David John Collier | SFLT | |
| South Gloucestershire Bus & Coach | Jeffrey Roger Durbin & Bernice Mary Durbin | SGBC | |
| Stagecoach/National Express | Stagecoach | SGCN | |
| SGI | Steel Group Investments Limited | SGIL | |
| South Gloucestershire Council | South Gloucestershire Council | SGLC | |
| Shamrock Buses | Dorset Heritage Transport Services Ltd | SHAM | |
| Shaws Coaches | Marjorie Shaw | SHAW | |
| Shire Community Services | SHCS | ||
| Isle of Hoy Development Trust | Isle Of Hoy Development Trust Ltd | SHDT | |
| Eurocar | Steve Harrison | SHEC | |
| Sherwood Travel | Stuart Oakland & Jane Oakland | SHER | |
| Shetland Ferries | Shetland Ferries | SHET | |
| Shaftesbury & District | Shaftesbury & District Motor Services Ltd | SHFD | |
| Shetland Islands Council | Shetland Islands Council | SHIC | |
| Shiel Buses | Shiel Buses Ltd | SHIL | |
| Ship Service | Ship Service | SHIP | |
| Sheppey Matters | Sheppey Matters | SHMT | |
| Shoreys Travel | Donna Thompson & Gwyneth Shorey | SHOR | |
| Wayne Douglas Sheppard | Wayne Douglas Sheppard | SHPD | |
| Shipston Link | Shipston Link | SHPL | |
| Shamrock Mini Coaches | Shamrock Mini Coaches | SHRK | |
| Shoreline Travel | Trevor Royston Shore | SHRL | |
| Sharpes of Nottingham | Sharpe & Sons (Nottingham) Ltd | SHRN | |
| Shropshire Link | Shropshire Link | SHRP | |
| South Harris Coaches | Donald Macrae & Raymond Angus Campbell | SHRS | |
| Shire Travel International | SHTR | ||
| Shuttle Buses | Shuttle Buses Ltd | SHUT | |
| Shaws of Maxey | Richard Edwin Shaw & Partners | SHWM | |
| M and A Shaw | M and A Shaw | SHWS | |
| Shaws Taxis | Shaws Taxis | SHWT | |
| Silverline Management Services | William Martin Haworth | SILV | |
| SimplyGo | SimplyGo | SIMG | |
| William Sim & Son | Betty Sim & Partners | SIMN | |
| Simonds | Simonds Of Botesdale Ltd | SIMO | |
| Simpsons (Keswick) | Alfred Simpson | SIMP | |
| Peter Sinclair | James Peter Sinclair | SINC | |
| Stagecoach North Scotland | Highland Country Buses Ltd | SINV | |
| Stanford in the Vale Minibus | Stanford in the Vale Minibus | SIVM | |
| Knoydart Seabridge | Knoydart Seabridge | SKDS | |
| Skegness Travel | SKGT | ||
| Skills Motor Coaches Limited | Skills Motor Coaches Ltd | SKIL | |
| Skelton Minibuses | David Stainthorpe | SKMB | |
| South Kent Coaches | Neil Ross Sadler & Jacqueline Sadler | SKNT | |
| Skyline Travel | Francis Dolan | SKTR | |
| Skye Ferry | Skye Ferry | SKYE | |
| Sky Taxis | Colin Mclaren | SKYT | |
| Skye-ways (Kyle) | Alistair Macrae & Mhairi Macrae | SKYW | |
| Slaemuir Coaches | Slaemuir Coaches Ltd | SLAE | |
| Stagecoach Cumbria and North Lancashire | Ribble Motor Services Ltd | SLAN | |
| Select Bus Services | B P Brown Travel Ltd | SLBS | |
| Slacks | K V & G L Slack Ltd | SLCK | |
| Selsey Community Bus | Selsey Community Bus | SLCS | |
| Silcox | Silcox Motor Coach Co Ltd | SLCX | |
| Sleafordian Coaches | Sleaford Taxi Co Ltd | SLEA | |
| Stena Line | Stena Line | SLFY | |
| Starline | SLNE | ||
| School Links | School Links | SLNK | |
| Stena Line Seacat | Stena Line Seacat | SLSC | |
| Silverdale Coaches (Scotland) | John Chapman | SLVD | |
| LandFlight | Silverline Landflight Ltd | SLVL | |
| Silver Choice | Silver Choice Travel Ltd | SLVR | |
| Silver Star | Silver Star Coach Holidays Ltd | SLVS | |
| Silverdale Tours | Silverdale Tours (Nottingham) Ltd | SLVT | |
| Sarah's Luxury Tours | Sarah's Luxury Tours | SLXT | |
| Shauns Mini Buses | Shaun McGowan | SMBY | |
| Smiths Coaches | Graham William Smith | SMCH | |
| S M Coaches | S M Coaches Ltd | SMCS | |
| Smeaton Cars (Doncaster) | Robert Ernest Colombo | SMEC | |
| J P Smee | Julie Patricia Smee | SMEE | |
| Smeaton Taxi Bus | Smeaton Taxi Bus | SMET | |
| Smith's Motors (Ledbury) | Smiths Motors (Ledbury) Ltd | SMLB | |
| Travel Cornwall | Summercourt Travel Ltd | SMMC | |
| South Mimms Travel | South Mimms Travel Ltd | SMMM | |
| Smith's Of Marple | Freedom Travel North Ltd | SMOM | |
| Somerbus of Paulton | Somerbus Ltd | SMRB | |
| SMS Executive Travel | SMS Executive Travel Limited | SMSE | |
| Stagecoach South | Southdown Motor Services Ltd | SMSO | |
| Somerset County Council (Previously ATMOS) | Somerset County Council (Previously ATMOS) | SMST | |
| Scalpay Minibus Committee | Scalpay Minibus Committee | SMSV | |
| Smiths Coaches (Ayr) | Andrew G Smith Snr & Andrew S Smith Jnr | SMTC | |
| Smith & Sons | Ian F Smith & Partners | SMTH | |
| Smiths of Tring | G A Smiths Coaches Ltd | SMTR | |
| SMT | SMT | SMTS | |
| Smyril Line Ferries | Smyril Line Ferries | SMYR | |
| Brussels Airlines | Brussels Airlines SA/NV | SN | |
| Snaefell Mountain Railway | Snaefell Mountain Railway | SNAE | |
| Howard Snaith | Howard James Snaith & Partners | SNAI | |
| Hugh Sinclair & Co (Shetland) | Andrew John Williamson | SNCC | |
| Shane Nuttall (Coach Hire) | Shane Raymond Nuttall | SNCH | |
| Sandgrounder Coaches | Gerald Doherty | SNDG | |
| Sanders Coaches | Sanders Coaches Ltd | SNDR | |
| The Seend Shuttle | The Seend Shuttle | SNDS | |
| S N Kingston Marine Services | S N Kingston Marine Services | SNKM | |
| Stagecoach East Midlands | Lincolnshire Road Car Co Ltd | SNNK | |
| Sunny Travel | Kamaljit Kaur | SNNY | |
| A Soames & Sons | Forget-Me-Not (Travel) Ltd | SOAM | |
| Sound of Barra Ferry | Sound of Barra Ferry | SOBF | |
| Orkney Community Transport Organisation | Orkney Community Transport Organisation | SOCT | |
| Solus Coaches | Solus Travel Ltd | SOLU | |
| Solutions SK | Solutions Sk Ltd | SOSK | |
| Stanton's of Stoke | Going My Way Ltd | SOST | |
| Social Travel | Social Travel Private Limited | SOTR | |
| Southbourne Buses | SOUB | ||
| Soul Brothers | Soul Bros Ltd | SOUL | |
| Spa Coaches | Norman Macarthur & Partners | SPAC | |
| South Pennine Community Transport | South Pennine Community Transport | SPCT | |
| Speedwell Private Hire | Jack Hampson & David James Furness | SPDW | |
| Superfast Ferries | Superfast Ferries | SPFR | |
| Stringers | Mark Gregory Stringer | SPMW | |
| Mid Argyll Taxis | David J Stewart | SPMX | |
| Springfield Bus & Coach | The Springfield Bus & Coach Co Ltd | SPNG | |
| Spot Hire | Roger Norman Young | SPOT | |
| Supertravel Minicoaches | Graham Bolderson | SPRM | |
| Spirit Buses | Spirit Buses Ltd | SPRN | |
| Supertravel Omnibus Ltd. | Supertravel Omnibus Ltd | SPRO | |
| Southdown PSV | Southdown Psv Ltd | SPSV | |
| Strathclyde Partnership for Transport | Strathclyde Partnership for Transport | SPTR | |
| SPT Subway | SPT Subway | SPTU | |
| Speedwell Bus (Hyde | Cheshire) | SPWT | |
| Speyside Community Bus | Speyside Community Bus | SPYC | |
| Squirrels Coaches (Liverpool) | Squirrels Coaches (Liverpool) | SQCL | |
| Sureline | Mabberley Limited | SRLN | |
| Shahzad | Sharaz & Azad Hussain | SSAH | |
| Stansted Citylink | Braddell Limited | SSCL | |
| South Somerset Community Transport | SSCT | ||
| Andrews (Sheffield) Ltd | Andrews (Sheffield) Ltd | SSHF | |
| Stagecoach North Scotland | Highland Country Buses Ltd | SSKY | |
| Stagecoach East Scotland | Fife Scottish Omnibuses Ltd | SSPH | |
| Strathspey Steam Railway | Strathspey Steam Railway | SSRW | |
| SS Suncruisers | Jack Stephenson & Rosemary Alison Stephenson | SSSN | |
| South Staffordshire Transport | South Staffordshire Transport | SSTF | |
| Severnside Transport Ltd | Severnside Transport Ltd | SSTL | |
| S and S Travel Services | S & S Travel Services Ltd | SSTR | |
| Stagecoach East Scotland | Fife Scottish Omnibuses Ltd | SSTY | |
| Stagecoach South Wales | Red & White Services Ltd | SSWL | |
| Stagecoach West | Cheltenham & Gloucester Omnibus Co Ltd | SSWN | |
| Star Travel | Shahzad Hussain & Partners | STAR | |
| Southern Transit | Neil Douglas Bird | STBC | |
| Stratford Blue Travel Ltd (City Sightseeing) | Stratford Blue Travel Ltd | STBL | |
| Star Cabs | STCB | ||
| Stuarts Coaches | David Stuart & Lisa Painter | STCH | |
| Stockport Community & Easy Go | Stockport Community & Easy Go | STCK | |
| Stotts Coaches (E Stott & Sons) Huddersfield | Eric Mark Andrew & Carl Denton Stott | STCO | |
| Stagecoach Merseyside and South Lancashire | Glenvale Transport Ltd | STCR | |
| Stoddards (Stoke on Trent) | Stoddards Ltd | STDD | |
| Bus & Coach Wales (Cymru) | Heart Of Wales Bus & Coach Ltd | STDT | |
| Steve Keats of Sheffield | Stephen William Keats | STEK | |
| Stephensons of Easingwold | Stephenson'S Of Easingwold Ltd | STEP | |
| Stewarts of Mortimer | Stewarts Coaches Limited | STEW | |
| Staffords Buddie Buses | Neil Stafford | STFF | |
| Tranport for Tongue | Transport for Tongue Ltd | STFT | |
| Staffwise plc | Staffwise Plc | STFW | |
| Stanley Gath Travel | STGA | ||
| sxconnect (operated by Arriva) | TGM Group Limited | STGM | |
| Stagecoach West Scotland | Western Buses Ltd | STGS | |
| Star Travel Holidays Ltd | Star Travel (Holidays) Ltd | STHL | |
| G B Smith | G B Smith | STHS | |
| St Ives Minibus Services | St. Ives Bus Co. Ltd | STIV | |
| William Stokes & Sons (Lanark) | William Stokes & Sons Ltd | STKS | |
| Stagecoach Cumbria and North Lancashire | Stagecoach (North West) Ltd | STLA | |
| Starliner (Bromsgrove) | Starliner (Bromsgrove) | STLN | |
| Steam Bus Company | Stuart Harrison | STMB | |
| Stacey's Mini Coaches (Carlisle) | Carol Barnes | STMC | |
| St Mawes Ferry | St Mawes Ferry | STMF | |
| Stanley Travel | Stanley Travel (North East) Ltd | STNE | |
| Stanley Taxis | Robert Mcgill Scott & Partners | STNL | |
| Station Taxis | Station Taxis (Sunderland) Ltd | STNX | |
| Stanways Coaches | David Elliott & Paul richman | STNY | |
| Stonehouse Coaches | Stonehouse Coaches Ltd | STON | |
| Stotts Tours | Stotts Tours (Oldham) Ltd | STOT | |
| Stepend Travel | Stepend Coaches Ltd | STPD | |
| Stepend Coaches | Stuart Chapman | STPN | |
| Strawberry Bus | Rolling Solutions Ltd | STRA | |
| Starline Coaches | Starline Coaches | STRL | |
| Streamline | Inderjeet Chahal | STRM | |
| Stratos Travel | Owens Of Oswestry Coaches Ltd | STRT | |
| South Tynedale Railway | South Tynedale Railway | STRW | |
| Sinclairs Taxis | Sinclair's Taxis Ltd | STSS | |
| Stagecoach East Scotland | Strathtay Scottish Omnibuses Ltd | STSY | |
| Stevenson's Travel | STTR | ||
| Stotts | E Stott & Sons Ltd | STTT | |
| Stagecoach Utd Counties | United Counties Omnibus Co Ltd | STUC | |
| Stuart's Coaches | Stuarts Coaches Ltd | STUR | |
| Steventon Transport | Steventon Transport Services Ltd | STVN | |
| Stagecoach West | Cheltenham & Gloucester Omnibus Co Ltd | STWD | |
| Stagecoach Merseyside and South Lancashire | Glenvale Transport Ltd | STWR | |
| Stagecoach West Scotland | Western Buses Ltd | STWS | |
| Stewart Enterprises (Carlisle) | William Stewart | STWT | |
| Starways Coaches | Starways Coaches | STWY | |
| Style Travel (Mold) | Alan Desmond Holden | STYL | |
| Community Action Suffolk | Community Action Suffolk | SUFA | |
| Sullivan Buses | Sullivan Bus & Coach Ltd | SULV | |
| J H Daves & Co | Summerdale Coaches | SUMD | |
| Parmjit Kaur & A K Rhandhwa | Parmjit Kaur & A K Rhandhwa | SUNP | |
| Sunray Travel | Sunray Travel Ltd | SUNR | |
| Surrey Connect | Surrey Connect | SURR | |
| Sussex Coaches | Samuel James Ayling | SUSC | |
| Soar Valley Community Bus | Soar Valley | SVCB | |
| Swift Valley Coaches | Simon Clarke & Claire Marie Clarke | SVCO | |
| Southern Vectis | The Southern Vectis Omnibus Co Ltd | SVCT | |
| Silvers Marine | Silvers Marine | SVMS | |
| Sovereign Limousine and Coach Hire | Sovereign Limousine and Coach Hire | SVRN | |
| Spa Valley Railway | Spa Valley Railway | SVRW | |
| D T & L D Bourne | D T & L D Bourne | SWAA | |
| Swanbrook Coaches | Swanbrook Transport Ltd | SWAN | |
| Maxibus | Andrew Smith | SWAS | |
| Basingstoke Community Transport | Basingstoke Community Transport | SWBC | |
| Community Action Malvern | Community Action Malvern | SWCA | |
| Cheltenham Community Transport | Cheltenham Community Transport | SWCC | |
| Swansea Cork Ferries | Swansea Cork Ferries | SWCF | |
| South West Coaches | South West Coaches Ltd | SWCO | |
| Swift Cars | Swift Cars | SWCR | |
| Wigtownshire Community Transport | Wigtownshire Community Transport Limited | SWCT | |
| Dawlish Community Transport | Dawlish Community Transport | SWDC | |
| Sweyne Coaches | Lee Woad | SWEY | |
| Forest Community Transport | Lydney Dia a Ride & Community Transport | SWFC | |
| Gardbus | Gardbus | SWGB | |
| Greenway Ferry Service | Greenway Ferry Service | SWGF | |
| Sweeneys Garage | Thomas A Sweeney & Kathleen A Sweeney | SWGG | |
| Stagecoach Greater Manchester | Greater Manchester Buses West Limited | SWIG | |
| S Winley (Preston) | Stanley Winley | SWIN | |
| Swallow Coach Company | Swallow Coach Co Ltd | SWLW | |
| Swanage Railway Company | Swanage Railway Company | SWNR | |
| Oakleys Coaches | Paul Simon Oakley | SWOC | |
| Bws Peris | Shane Wyn Price | SWPW | |
| Salcombe Ferry | Salcombe Ferry | SWSF | |
| Steam Ship Sir Walter Scott | Steam Ship Sir Walter Scott | SWSS | |
| Swiftsure Travel | Swiftsure Travel (Burton Upon Trent) Ltd | SWST | |
| Southwold Town Council | Southwold Town Council | SWTC | |
| Swans Travel Ltd | Swans Travel Ltd | SWTL | |
| South Wales Transport | South Wales Transport (Neath) Ltd | SWTR | |
| Community Connexions | Third Sector Services | SWTS | |
| Tim's Transport | Tim's Transport | SWTT | |
| Salisbury Reds | Wilts And Dorset Bus Co Ltd | SWWD | |
| Swift Taxis & Private Hire | Swift Taxis & Private Hire Ltd | SXPH | |
| Sixty Sixty Coaches | Merthyr Tydfil (aka 60 60 Coaches) | SXSX | |
| Strathclyde Bus | Thomas Johnston | SYDB | |
| South Yorkshire Rider Limited | South Yorkshire Rider Limited | SYOR | |
| Stagecoach Yorkshire | The Yorkshire Traction Co Ltd | SYRK | |
| Air Southwest | Eastern Airways | SZ | |
| Eastern Airways | Eastern Airways | T3 | |
| Town & Country Bus | Town & Country Bus Ltd | TACB | |
| Tacsi Gwynedd | TACG | ||
| Cheshire Town and Country Private Hire (Stoke on Trent) | Caroline Eckersley | TACT | |
| Taf Valley Coaches | Bysiau Cwm Taf Valley Coaches Ltd | TAFV | |
| Tagsa Uibhist | Tagsa Uibhist | TAGS | |
| Mr Joseph M Cox | Checkmate Transport | TANC | |
| Tansey's Coaches | John Tansey & Janet Elizabeth Tansey | TANS | |
| Tanat Valley Coaches | R E Morris & Sons Ltd | TANV | |
| Tappins Coaches | Tappins Coaches | TAPC | |
| Travel Assist | Travel Assist Service Ltd | TASL | |
| Tates Travel | Graham Mallinson | TATM | |
| Wrekin Rider | Telford & Wrekin Council | TAWC | |
| Taw & Torridge | Taw And Torridge Coaches Ltd | TAWT | |
| Torbay Community Bus | Torbay Community Bus | TBCB | |
| The Big Red Bus | John Letts | TBRB | |
| Trent Barton (Skylink) | Trent Barton (Skylink) | TBSL | |
| Tamar Bridge & Torpoint Ferry Joint Committee | Tamar Bridge & Torpoint Ferry Joint Committee | TBTJ | |
| Trent Barton | Barton Buses Ltd | TBTN | |
| Taylors Coach Travel | Taylors Coach Travel Ltd | TCAT | |
| Tex Cars & Coaches | Tex Cars & Tex Coaches Ltd | TCCO | |
| The Coachmasters | The Coachmasters (Rochdale) Ltd | TCHM | |
| T C Minicoaches | T C Mini Coaches Limited | TCMC | |
| Town and Country Motor Services | Town And Country Motor Svs Ltd | TCMS | |
| TransportConnect | TCNT | ||
| Town & Country Taxis | James Donald Herkes | TCTX | |
| National Express Coventry | West Midlands Travel Ltd | TCVW | |
| Tim Dearman's Coaches | Timothy Francis Dearman | TDCO | |
| London Sovereign | London Sovereign Ltd | TDEV | |
| Town & District Travel | Ian Andrew Tomlinson | TDST | |
| Swindon's Bus Company | Thamesdown Transport Ltd | TDTR | |
| TD Travel | Anthony Crossland | TDTV | |
| Stagecarriage | Wayne Ian Brown & Ian Peacock | TEES | |
| K A J & A Hazlett | Keith Andrew John Hazlett & Anne Hazlett | TEGG | |
| Telecars of Bolton | Radio Controlled Transport Services Ltd | TELE | |
| Telfords Coaches | Telford'S Coaches Ltd | TELF | |
| T C Hall | T C Hall | TERH | |
| TES | TES | TESW | |
| Let's Go | Travel Express Ltd | TEXP | |
| Truro Falmouth and District | Truro Falmouth And District | TFAD | |
| Travel for All Ltd | Travel For All Limited | TFAL | |
| Travel Final Ltd. | Travel Final Ltd | TFNL | |
| Uig Bus Services | Malcolm Morrison | TFST | |
| The Green Bus Service | Warstone Motors Ltd | TGBS | |
| Tellings Golden Miller | TGM Group Limited | TGML | |
| TGM Stansted | Arriva Kent Thameside Ltd | TGMS | |
| Tiger European (Nottingham) | Tiger European (Uk) Limited | TGRE | |
| Travelguest Dorset Sprinter | P.D. & N.J. Guest | TGST | |
| The Green Bus Company Limited | The Green Transport Company Limited | TGTC | |
| Thandi Transport Ltd | Thandi Transport Ltd | THAN | |
| Thomas Bros (Llangadog) | Gareth Thomas | THBR | |
| Thornhill Community Bus | Thornhill Community Bus | THCB | |
| Thornes Independent Ltd | Thornes Independent Ltd | THIL | |
| Thurmaston Bus | R F Powell & L D Watson | THMB | |
| D J Thomas Coaches (Neath) | D J Thomas Coaches Ltd | THMS | |
| D C Threlfall | D C Threlfall | THRL | |
| ThisBus.com | ThisBus.com Ltd | THSB | |
| Thames Travel | Thames Travel (Wallingford) Ltd | THTR | |
| Thames Valley Buses | THVB | ||
| Tidy Taxis | Castle Investments Uk Ltd | TIDY | |
| Tierney Brothers | Richard Tierney & Thomas Tierney | TIER | |
| Tiger Line | Opperman (1990) Ltd | TIGR | |
| TJ Travel | TJ Travel Ltd | TJTL | |
| Teejay Travel | Teejay Travel Ltd | TJTR | |
| The London Bus Company | The London Bus Company Ltd | TLBC | |
| Townlink Buses | Townlink Buses Ltd | TLBL | |
| TLC Travel Ltd | T L C Travel Ltd | TLCT | |
| Essential Fleet Services | Kier FPS Limited | TLNC | |
| Transline | Transline | TLNE | |
| the travellink.co.uk (operated by Kings Ferry) | The Kings Ferry Ltd | TLNK | |
| Top Line Travel of York Ltd | Transdev York Limited | TLTY | |
| Tally Ho! | Tally Ho! Coaches Limited | TLYH | |
| Tourmaster Coaches | Tourmaster Coaches (Crowland) Ltd | TMCO | |
| Merry Hill Minibuses Ltd | Merry Hill Private Hire Ltd | TMHM | |
| Travel Master (MCR) Limited | Travel Master (Mcr) Limited | TMLD | |
| Thompsons Coaches | TMPC | ||
| Tamar Cruising & Cremyll Ferry | Tamar Cruising & Cremyll Ferry | TMRF | |
| Travelmasters | Kent Coach Travel Ltd | TMST | |
| Truro Minibus Services & Primrose Coaches | Stephen Paul Bawden | TMSV | |
| TM Travel | T M Travel Ltd | TMTL | |
| Tamar Valley Community Bus | Tamar Valley Community Bus | TMVC | |
| Townlynx | Stephen Andrew Lee | TNLX | |
| Turners Tours | Albert Ralph Turner & Partners | TNTR | |
| National Express West Midlands | West Midlands Travel Ltd | TNXB | |
| Terry O'Grady | Terry O'Grady | TOGY | |
| Torridge Community Transport | Torridge Community Transport | TORC | |
| Tordoff Transport | Tordoff Transport Ltd | TORY | |
| Totness Community Bus | Totness Community Bus | TOTN | |
| Tower Transit | Tower Transit | TOTR | |
| Tourmaster | Cooper's Tourmaster Travel Ltd | TOUM | |
| Tourist Coaches | Tourist Coaches Ltd | TOUR | |
| Town & Country Travel (Runcorn) | Craig William Mounfield | TOWN | |
| Middlesbrough Transporter Bridge | Middlesborough Transport Bridge | TPBG | |
| London Tramlink | London Tramlink | TRAM | |
| Turbostyle Coaches | Turbostyle Coaches Ltd | TRBO | |
| Travel Ride Corporation Ltd (Birmingham) | Travel Ride Corporation Ltd | TRCL | |
| Xplore Dundee | Tayside Public Transport Co Ltd | TRDU | |
| Target Travel | Dealtop (Plymouth) Ltd | TRGT | |
| Tri-Star Mini Coaches (Choppington) | Kenneth Muckle | TRIS | |
| Turners of Essex | Louise Golding & Terry Andrew Lawson | TRNR | |
| S R and E Turner | S R and E Turner | TRNS | |
| TrustyBus | Trustybus (operated by Centrebus) | TRST | |
| T R Travel | Anthony David Rutter | TRTL | |
| Trent Valley Travel | Trent Valley Travel (Rugeley) Ltd | TRTV | |
| The Travellers Choice | John Shaw & Son Ltd | TRVC | |
| Air Transat | Transat A.T. Inc. | TS | |
| theSussexBus.com | City Of Chichester Coaches Limited | TSBC | |
| Travelsure | Travelsure Coaches Ltd | TSCL | |
| Tetley's | Tetleys Motor Services Ltd | TTLY | |
| Tates Travel Group | Tates Travel Ltd | TTSG | |
| Titterington Coaches (Penrith) | Titterington Coaches Ltd | TTTG | |
| Take a Tuk Tuk Ltd | Take A Tuk Tuk Ltd | TTUK | |
| Turner & Butcher | Turner & Butcher Ltd | TUBU | |
| Tudor Coaches | Tudor Coaches Ltd | TUDC | |
| Turners | David William Turner | TURN | |
| Tyne Valley Coaches | Tyne Valley Coaches Ltd | TVCO | |
| Test Valley Community Services | Test Valley Community Services | TVCS | |
| Tavistock Community Transport | Tavistock Community Transport | TVCT | |
| Tees Valley Luxury Coach Travel | Tees Valley Luxury Coaches Ltd | TVLC | |
| Tees Valley Cabs | Tees Valley Cabs | TVLY | |
| Trans Vol Community Transport | Trans Vol Community Transport | TVOL | |
| Terravision Transport (Stanstead Airport) | Terravision Transport Limited | TVSN | |
| Travelsure | Barrie Cuthbert Patterson | TVSR | |
| TW Coaches (South Molton) | T W Coaches Ltd | TWCO | |
| Travel Wright | Travel Wright Ltd | TWGT | |
| Travel With Hunny | Christopher Stephen Hunn | TWHN | |
| Timewells Travel Ltd | Timewells Travel Ltd | TWLL | |
| Travel West Midlands | Travel West Midlands | TWMD | |
| T Ward | Terence Raymond Ward | TWRD | |
| Aimee's | Gary Anthony Goldstraw | TXCO | |
| TAXIFAST (Plymouth) | Key Cabs Ltd | TXFT | |
| Taxi Service | Taxi Service | TXIS | |
| Tydd Travel | Tydd Travel Ltd | TYDD | |
| Taylors Coaches (Penketh) | Taylor Coaches (Penketh) Ltd | TYLR | |
| Tyneside Travel (2007) LTD | Tyneside Travel (2007) Ltd | TYNE | |
| Tyson Travel | Andrew Michael Helm | TYSN | |
| Taylors Travel | Taylors Travel Limited | TYSW | |
| Tyrers Coaches | Tyrer Tours Ltd | TYTR | |
| Easyjet | Easyjet plc | U2 | |
| Union Cars | C Whiteley & P Kelly | UCAR | |
| Urchfont Community Bus | Urchfont Community Bus | UCBU | |
| Eurocypria | Eurocypria Airlines Limited | UI | |
| KLM UK | Air France KLM | UK | |
| UK Coachways | UK Coachways Ltd | UKCW | |
| Unknown rail operator | unknown | UKNR | |
| UK Private Hire Ltd | U K Private Vehicle Hire Limited | UKPH | |
| Ultimate Coaches | ULCO | ||
| Ullswater Steamers | Ullswater Steamers | ULLS | |
| Ulsterbus Express | Ulsterbus Express | ULSB | |
| Ulsterbus/Stena Line | Ulsterbus/Stena Line | ULSL | |
| Ultimate Taxis | Ultimate Taxis Limited | ULTA | |
| Ulva Ferry (Ceased) | Ulva Ferry | ULVA | |
| Universitybus Ltd | Universitybus Ltd | UNIB | |
| Uni-Link | Solent Blue Line Limited | UNIL | |
| Various Companies - United Consortium | Various Companies - United Consortium | UNIT | |
| Uno | Uno Buses (Northampton Ltd) Ltd | UNOE | |
| United Coaches | Greenock & District Omnibuses Ltd | UNTD | |
| United Minibuses | Mumtaz Rasool | UNTM | |
| Unity Coaches | Frank Marriott & Jennifer Marriott | UNTY | |
| Utopia Mini Coaches | Utopia Coaches Limited | UTMC | |
| Upper Wharfedale Community Bus | UWCB | ||
| The Little White Bus | Upper Wensleydale Community Partnership | UWCO | |
| Volunteer & Community Action | Volunteer & Community Action | VACA | |
| Vale Cars Ltd | Vale Cars Ltd | VALE | |
| Vals Classic Coaches | Vals Classic Coaches Ltd | VALS | |
| Valentine's | VALT | ||
| Voluntary Action Training | Voluntary Action Training Ltd | VATG | |
| Villager Community Bus (Oxon) | Villager Community Bus (Oxon) | VCBO | |
| Veolia | Veolia Transport England Plc | VELI | |
| Venturer Coachways | Venturer Coachways Ltd | VENC | |
| Veolia Transport North (Durham | Hull) | VEOL | |
| Verwood Bus | Andrew Reginald Wood | VERW | |
| Viceroy Coaches of Essex | Viceroy Of Essex Ltd | VESX | |
| Formerly Shamrock Travel UK | Bebb Travel | VETC | |
| Phoenix Travel | Victoria Ellen Webster | VEWB | |
| VLM Airlines | VLM Airlines | VG | |
| Village Green Motor Services (Ledbury) | Russell Evan Price & Martin John Perry | VGMS | |
| VG Travel | VGTL | ||
| VIA Travel Ltd | Via Travel Ltd | VIAT | |
| Viking Coaches (Heywood) | Alan Warburton | VIKG | |
| Villager Community Bus (Beds & Bucks) | Villager Community Bus (Beds & Bucks) | VILB | |
| VIP Contracts Ltd | Vip Contracts Ltd | VIPC | |
| Vision Bus | VISB | ||
| Four Towns & Vale Link Community Transport | Four Towns & Vale Link Community Transport | VLCT | |
| Vale Travel | Wazir Zaman | VLET | |
| Valley Travel (Birmingham) | The Merlin Venture Ltd | VLYT | |
| Villager Minibus Services | Villager Minibus Services | VMSV | |
| Voel Coaches | Voel Coaches Ltd | VOEL | |
| Vale of Glamorgan Railway Company | Vale of Glamorgan Railway Company | VOGR | |
| The Voluntary Network | The Voluntary Network | VOLN | |
| Vale of Llangollen Travel | Vale Of Llangollen Travel Ltd | VOLT | |
| Vintage OmniBus Services (Yorkshire Dales) | James Christopher Bulmer | VOSV | |
| VR Travel | Robert Anthony Price | VRTR | |
| Veolia | Paul James Coaches Ltd | VTPJ | |
| MyTravel Airways | Thomas Cook Airlines Limited | VZ | |
| Albert Wilde | Philip James Wilde & Partners | WACL | |
| Watts' Coaches | Clive Peter Watts | WACO | |
| Walsall Community Transport | Walsall Community Transport | WACT | |
| Harton Coaches | Harton Coaches Limited | WAHC | |
| Woking RailAir | Woking RailAir | WAIR | |
| Alexander Wait & Son | John A Cockburn & Ian A Cockburn | WAIS | |
| Walters Coaches | Peter John Blowfield | WALT | |
| Warringtons Coaches | Warringtons Coaches Ltd | WARC | |
| Warstone Motors (Green Bus Service) | White Wings Travel Limited | WARS | |
| Watts' Motor Services (WMS) | Victor Stanley Watts | WATT | |
| Wheelchair Access Vehicle Enterprise | Wheelchair Accessible Vehicle Enterprises Ltd | WAVE | |
| Wayland's Minibuses | Wayland Frank Berry & Margaret Anne Elizabeth Berry | WAYL | |
| Wiltshire Bus (operated by Bodman's Coaches) | Adrian Charles Hillier and Charles John Bodman | WBBC | |
| WebberBus (St Austell | Cornwall) | WBBR | |
| West Berkshire Council Transport Services | West Berkshire Council Transport Services | WBCT | |
| Wilfreda Beehive | Wilfreda Luxury Coaches Ltd | WBHV | |
| Williams of Bala | Geoffrey Wynn Williams & Alan Wynn Williams | WBLA | |
| Wigan Buses Ltd | Wigan Buses Limited | WBLD | |
| Wombourne Private Hire | Robert John Sheldon | WBPH | |
| Webbers Coaches | Reginald Keith Webber | WBRC | |
| White Bus Services | C E Jeatt & Sons Ltd | WBSV | |
| Warrington's Own Buses | Warrington Borough Transport Ltd | WBTR | |
| Wilbys Coaches | Wilbys Coaches Ltd | WBYC | |
| Wessex Community Action | WCAC | ||
| Waveney Community Bus | Waveney Community Bus | WCBU | |
| Warwickshire County Council | Warwickshire County Council | WCCO | |
| Waltons Coach Hire | Walton's Coach Hire Ltd | WCHL | |
| Watlington Community Interest Company | Watlington Community Interest Company | WCIC | |
| Williams | Williams | WCLL | |
| West Coast Motors | Craig Of Campbeltown Ltd | WCMO | |
| Wyre Coaches | Anthony Nicholas Hoffman & Stephen Brian Webster | WCOA | |
| Worcestershire County Council | Worcestershire County Council | WCSC | |
| West Coast Taxi | West Coast Taxi | WCTX | |
| Heatons Coaches | Angela Hancock | WCTY | |
| morebus | Wilts And Dorset Bus Co Ltd | WDBC | |
| Western Dales Community Bus | Western Dales Community Bus | WDCB | |
| Weston & District CT | Weston and District Community Transport | WDCT | |
| Wardle Transport | Stevensons of Uttoxeter Ltd | WDLT | |
| Woodside Tours | Lenorad Wragg & Ian Kemp | WDTY | |
| WeberBus | WEBR | ||
| W E Jones & Sons Limited | W E Jones & Sons Limited | WEJO | |
| Westerbus | Murdo MacKenzie & Ian Maclennan | WESB | |
| West Somerset Railway | WESO | ||
| West End Travel | Romdrive Ltd | WETR | |
| Western Ferries | Western Ferries (Clyde) Ltd | WFRL | |
| GHA Coaches | G H A Coaches Ltd | WGHA | |
| Henry Cooper Coaches | William Graham Greaves | WGHC | |
| GRS Travel | Gurdaver Ram | WGRS | |
| Western Greyhound | Western Greyhound Ltd | WGRY | |
| Wright Brothers Coaches | Wright Bros Coaches Ltd | WGTB | |
| White Bear Coaches | Fred Garside | WHBC | |
| W & H Commercials | W & H Commercials | WHCM | |
| Whincop Coaches | Paul Simon Whincop | WHCO | |
| W Hendry | Michael W K Hendry & Isobel J A Hendry | WHEN | |
| White Horse Ferries | White Horse Ferries | WHFR | |
| Go-Whippet | Whippet Coaches Ltd | WHIP | |
| Whittle Coach & Bus Ltd (Kidderminster) | Whittle Coach & Bus Ltd | WHIT | |
| Waverley Hoppa Community Transport | Waverley Hoppa Community Transport | WHOP | |
| Yorkshire Tiger | White Rose Bus Co Ltd | WHRO | |
| West Highland Seaways | West Highland Seaways | WHSW | |
| Whittaker's Coaches | Whittakers Ltd | WHTC | |
| K L Prince | Karl Leroy Prince | WHTG | |
| Whitelaw Coaches | Whitelaws Coaches Ltd | WHTL | |
| White Heather Tours | Adam A & Margaret E Macintyre | WHTR | |
| Whites Coaches | Whites Coaches Limited | WHTS | |
| Wide Horizon | Wide Horizon Coaches Ltd | WHZN | |
| Wiltshire WigglyBus | Wiltshire WigglyBus | WIBS | |
| Windy Corner Coaches | WICC | ||
| Western Isles Cruises | Western Isles Cruises | WICS | |
| Wicksons Travel (Walsall) | J W Wickson Ltd | WICW | |
| WCM | Widnes Commercial Motors Ltd | WIDN | |
| Wigan & District Community Transport | Wigan & District Community Transport | WIGD | |
| Wightbus | Isle Of Wight Council | WIGH | |
| Wilkins Travel (Port Talbot) | Wilkins Bros (Cymmer) Ltd | WILK | |
| Williams Coach (Llandrindod Wells) | Dorothy Frances & Joseph Michael Williams | WILL | |
| Winslow & District Community Bus | Winslow & District Community Bus | WINS | |
| Wints Coaches (Leek) | Andrew Colin Wint & Maxine Jean Wint | WINT | |
| WJC Buses | John Carson | WJCB | |
| West Kent Buses | Stuart Gilkes | WKBU | |
| WKN Coaches | WKNC | ||
| World Flight | World Flight | WLDF | |
| Walden Travel Ltd | Walden Travel Ltd | WLDN | |
| White Lady Coaches | Brian Whitehead & Ann Whitehead | WLDY | |
| WightLink | WightLink | WLKF | |
| Andrew Wallbank Ltd | Andrew Wallbank | WLLB | |
| Williamsons (Nantwich) | Peter John Williamson & Patricia Ann Williamson | WLMS | |
| Wilson's Coaches | Robert Hunter Wilson | WLSC | |
| Welsh Dragon Travel (Newport) | Alan Barrington Smith | WLSH | |
| Allan Walton Travel | Allan Walton Travel Ltd | WLTN | |
| Wilson's MiniBus Hire (Newcastle upon Tyne) | William Wilson | WMBU | |
| Cumbria County Council | WMCF | ||
| Windermere Lake Cruises | Windermere Lake Cruises | WMLC | |
| A C Williams | GHP Trading Limited | WMSA | |
| Ring and Ride | WMSNT (Holdings) Limited | WMSN | |
| Weardale Motor Services | Weardale Motor Services Ltd | WMSV | |
| W & M Travel | William Norman | WMTR | |
| WMV Motor Hirer | Willie Macvicar | WMVM | |
| Newent Community Link | Newent Association for the Disabled | WNCL | |
| West Norfolk Community Transport | West Norfolk Community Transport Project Limited | WNCT | |
| Hallmark Connections | WNGS | ||
| Woodstones Coaches (Kidderminster) | Woodstones Coaches Ltd | WOCO | |
| West Oxfordshire Community Transport | WOCT | ||
| Woods Coaches | Woods Coaches Ltd | WOOC | |
| Wood Bros | Wood Brothers Travel Ltd | WOOD | |
| Woof's of Sedbergh | Graeme Woof | WOOF | |
| Woolleys Coaches | Frederick Woolley | WOOL | |
| Woody's Taxis | WOTA | ||
| West Penwith Community Bus Association | West Penwith Community Bus Association | WPCB | |
| Westham & Pevensey Community Transport | Westham & Pevensey Community Transport | WPEV | |
| PKS Travel | Steven James Cooper | WPKS | |
| Williams of Porthmadog | Emlyn Williams | WPRT | |
| Westminster Passenger Services Association | Westminster PSA | WPSA | |
| Cape Wrath Ferry | Cape Wrath Ferry | WRAT | |
| Arriva Yorkshire | Arriva Yorkshire Ltd | WRAY | |
| W G & G Robertson (Turriff) | William George Robertson & Georgina Robertson | WRBT | |
| Weardale Community Transport | Weardale Community Transport Ltd | WRCT | |
| Wilson's of Rhu | Wilsons Of Rhu Ltd | WRHU | |
| Wirralbus | Wirralbus | WRLB | |
| Worley Coaches | Ian Michael Pittaway | WRLY | |
| Nuttals | Warrington Coachways Ltd | WRNG | |
| Telford & Wrekin Council - Wrekin Rider | Telford & Wrekin Council - Wrekin Rider | WRRD | |
| Wirral Christian Centre Transport Ltd | Wirral Christian Centre Transport Ltd | WRRL | |
| Worths Motor Services | Worths Motor Services Ltd | WRTH | |
| Wensleydale Railway PLC | Wensleydale Railway PLC | WRWC | |
| Travel Wisharts | Tayside Public Transport Co Ltd | WSHT | |
| Witney Shuttle | Witney Shuttle | WSHU | |
| Walton Swift Taxis | Walton Swift Ltd | WSLT | |
| Laurie Marshall Wiseman | Laurie Marshall Wiseman | WSMN | |
| Wessex Bus (Weymouth) | George Anthony Douglass & Marion Ann Charlton | WSSX | |
| Westminster Coaches | Westminster Coaches | WSTM | |
| Wastbus | George Morrison & Alison Morrison | WSTS | |
| Westward Travel | Michael John Simmons & Laura Constance Simmons | WSTT | |
| Wrexham Taxis | WTAX | ||
| Worthen Motors | David Anthony Pye | WTHT | |
| Waterloo Bus Service | Thomas N M Macleod | WTRL | |
| Watermill Coaches | Watermill Coaches Ltd | WTRM | |
| Wheelers Travel | Wheelers Travel Ltd | WTSW | |
| Wolverhampton University Bus | WUCB | ||
| Viking Coaches | VikingCoaches.Com Limited | WVIK | |
| Waverley Travel | Robert Jack | WVTR | |
| Paddle Steamer Waverley | Paddle Steamer Waverley | WVYP | |
| Bmibaby | Bmibaby Ltd | WW | |
| Wanderbus | Wanderbus | WWDR | |
| Wyre Forest Dial a Ride | Wyre Forest Dial a Ride | WWFD | |
| Central Garage Keith | William W Smith & Partners | WWSC | |
| Yardley Travel | Yardley Travel Ltd | WYAR | |
| Wyvern Community Transport | Wyvern Community Transport | WYVC | |
| TUI Fly | TUI Group | X3 | |
| Xelabus | Xelabus Limited | XLBL | |
| Yateley Taxis | John Ernest Brooks & Claire Deborah Brooks | YATX | |
| Beverley Community Lift | Beverley Community Lift | YBCL | |
| Yourbus | Dunn Motor Traction Ltd | YBUS | |
| Coastliner | Yorkshire Coastliner Ltd | YCST | |
| Yellow Buses | Bournemouth Transport Ltd | YELL | |
| Yelloway Coaches | Yelloway Coaches Limited | YELM | |
| Yellow Rose Coaches | James Hacking (Yellow Rose Coaches) Ltd | YELR | |
| Yeomans Travel | Yeomans Canyon Travel Ltd | YEOC | |
| Yeos Contracts | Julie Yeo | YEOS | |
| George Young's Coaches | George Young'S Coaches Ltd | YGSC | |
| HART | North Holderness Community Transport | YHAR | |
| Horseless Carriage Services | Horseless Carriage Services Ltd | YHCS | |
| Yorks Coaches | L F Bowen Ltd | YKSC | |
| Croft Coach Travel | Buses 4 Sale Ltd | YLLW | |
| Ladies Only Exclusive Travel | Jeanette Romani | YLOT | |
| YMS Travel | YMS Travel Ltd | YMST | |
| Youngs of Romsley | R J Young | YNGS | |
| Nafferton Millennium Committee | Nafferton Millennium Committee | YNMC | |
| Yorkshire Line Limited | Yorkshire Line Limited | YOLI | |
| K & J Logistics Ltd | K & J Logistics Ltd | YPBL | |
| Pennine Motor Services | Maurice Simpson & Partners | YPMS | |
| Road Runner Bus & Coach | Jonathan Craig Temple | YRRB | |
| Squarepeg | Simon Daymond | YSQU | |
| Station Coaches | Dean Hawkins | YSTN | |
| Yesteryear Coaches | Greg Lawson & Anna May Lawson | YSTY | |
| Stagecoach Yorkshire | The Yorkshire Traction Co Ltd | YSYC | |
| Yorkshire Tiger | Yorkshire Tiger Limited | YTIG | |
| Yarranton Brothers | Yarranton Bros Ltd | YTNB | |
| Elizabeth Yule | Elizabeth Yule | YULE | |
| Your Travel | Your Travel Ltd | YYTL | |
| Central Connect (ZAKC) | Shady Lane Property Limited | ZAKC | |
| Z Carz | Z Carz | ZCAR | |
| Zoom Coaches | ZOCO | ||
| Z & S Transport | Z & S Transport Ltd | ZSIN | |
| Zoom Airlines | Zoom Airlines Inc | ZX |