| A.R.T. Aviation Limited | Southam | 2017 |
| A.R.T. Company 2402 Ltd | Wigan | 2025 |
| A.R.W Wilson Limited | Wick | 2025 |
| A.R.W. Limited | Pontypool | 2008 |
| A.Racinskij Ltd | Bury St. Edmunds | 2025 |
| A.Regal Radio Cars Ltd | Southall | 2019 |
| A.Robert Transport Ltd | Bristol | 2025 |
| A.Roman Services Ltd | Camberley | 2017 |
| A.Rr Logistics Ltd | Halifax | 2026 |
| A.S Bath Private Hire Ltd | Bath | 2026 |
| A.S Booth & Family Heavy Haulage Ltd | Southsea | 2022 |
| A.S Fleet Ltd | Middlesbrough | 2025 |
| A.S London Express Transport Limited | Ipswich | 2005 |
| A.S Rapid Couriers Ltd | Birmingham | 2026 |
| A.S. Logistics Group Limited | Hornchurch | 2024 |
| A.S. Taxis Limited | Southampton | 2002 |
| A.S. Taylor Transport Limited | Burton On Trent | 1998 |
| A.S. Transport & Logistics Limited | London | 2025 |
| A.S. Transport Services Ltd | Corby | 2017 |
| A.S. UK Trading Ltd | Morden | 2019 |
| A.S.A. Swimming Enterprises Limited | Loughborough | 1982 |
| A.S.A.P. Driving and Industrial Services Limited | Banbury | 1990 |
| A.S.A.P. Removals & Transport Limited | High Peak | 2003 |
| A.S.Chauffeurs Ltd | West Drayton | 2014 |
| A.S.F.S Services Ltd | Ipswich | 2019 |
| A.S.J Haulage Ltd | Birmingham | 2011 |
| A.S.J. Couriers Limited | Caerphilly | 2026 |
| A.S.K First Couriers Ltd | Leigh | 2025 |
| A.S.K. Couriers Limited | Cheshire | 2003 |
| A.S.L.H Limited | Derbyshire | 2005 |
| A.S.R Transport Ltd | Leeds | 2024 |
| A.Service&Co Ltd | Peterborough | 2024 |
| A.Sip Trans Ltd | Didcot | 2019 |
| A.T. Brown (Coaches) Limited | London | 1961 |
| A.T. Taxis Limited | County Durham | 2003 |
| A.T.Moss & SON Limited | Stoke On Trent | 1940 |
| A.T.Trans UK Ltd. | Winsford | 2016 |
| A.T.X (Airdrie) Ltd | Airdrie | 2021 |
| A.Tenniswood & Sons Limited | Weybridge | 1957 |
| A.Transport Ltd | Stoke-On-Trent | 2019 |
| A.Tucker & SON Haulage Ltd | Barnsley | 2013 |
| A.U Transport Ltd | Coalville | 2018 |
| A.U.H. Transport Services Ltd | Southampton | 2025 |
| A.V. Dawson Transport Ltd | Middlesborough | 2019 |
| A.V. Drive Ltd | Smethwick | 2018 |
| A.V.Dawson Limited | Middlesbrough | 1959 |
| A.V.G Haulage&Warehousing Ltd | Northampton | 2022 |
| A.Vibriantis Limited | Bury St. Edmunds | 2026 |
| A.Vrubels Limited | Leicester | 2014 |
| A.W. Baxter Produce Limited | Preston | 1988 |
| A.W. Drivers Ltd | Nottingham | 2018 |
| A.W. Easton's Coaches Limited | Stratton Strawless | 1978 |
| A.W. Express Ltd. | Rugby | 1998 |
| A.W. Motor Spares Limited | Industrial Estate,Linwood | 1981 |
| A.W.E.P. Services Ltd | Chorley | 2017 |
| A.W.LOGISTICS24 Ltd | Doncaster | 2019 |
| A.W.S Transport Services Limited | Tipton | 2019 |
| A.Wade & Co. (Northallerton) Limited | Northallerton | 1970 |
| A.Z Cars Woking Ltd | Woking | 2014 |
| A/B Transport Courier Limited | Wigston | 2019 |
| A/Delivery Limited | Birmingham | 2025 |
| A1 24 Hour Luton Ltd | Luton | 2019 |
| A1 24 X 7 Limited | London | 2016 |
| A1 Airport Transfers Limited | Hayes | 2009 |
| A1 and Eden Cars Ltd | Weybridge | 2023 |
| A1 Auto Logistics Ltd | Bransgore | 2015 |
| A1 Auto Move Ltd | Hounslow | 2024 |
| A1 Automotive Ltd. | Bathgate | 1997 |
| A1 Best Traders Ltd | Colchester | 2018 |
| A1 Border Moves Limited | Hawick | 2021 |
| A1 Breakdown Recovery Ltd | Stanford-Le-Hope | 2013 |
| A1 Breakdown Recovery Services Limited | Huddersfield | 2024 |
| A1 Buses Ltd | Middlesbrough | 2014 |
| A1 Business Solutions Ltd | Preston | 2023 |
| A1 Cabco Taxis Limited | Cambridge | 2015 |
| A1 Cabco United Regency Limited | Surrey | 2005 |
| A1 Cabs & Truck UK Ltd | London | 2021 |
| A1 Cabs Dundee Ltd | Dundee | 2025 |
| A1 Cabs Uppingham Limited | Oakham | 2024 |
| A1 Cabs Watford Ltd | Watford | 2026 |
| A1 Car Parts Ltd | Birmingham | 2023 |
| A1 Cars (Reading) Ltd | Wokingham | 2011 |
| A1 Cars (Suffolk) Ltd | Bury St. Edmunds | 2011 |
| A1 Cars (Viewpark) Limited | Wishaw | 2007 |
| A1 Cars Banbury Ltd | Banbury | 2025 |
| A1 Cars Limited | Mitcham | 2002 |
| A1 Cars North Lincs Ltd | Scunthorpe | 2023 |
| A1 Cars Private Hire Limited | Hitchin | 2002 |
| A1 Cars Rental Services Ltd | Cardiff | 2018 |
| A1 Cars ST Albans Limited | Luton | 2016 |
| A1 Cars Telford Ltd | Telford | 2026 |
| A1 Chauffeur Limited | Glasgow | 2026 |
| A1 City Cars Limited | Barnet | 2025 |
| A1 Coach Travel Ltd | Londonderry | 2003 |
| A1 Coaches Ltd | Skelmersdale | 2014 |
| A1 Cogent Logistics Limited | Gloucester | 2025 |
| A1 Contract Cars Ltd | Harlow | 2022 |
| A1 Courier U.K Ltd | Banbury | 2025 |
| A1 Couriers Limited | Stevenage | 2018 |
| A1 Delta Taxis BSK Ltd | Basingstoke | 2026 |