| A.R.P. Security Services Limited | Halifax | 1984 |
| A.R.R. Ltd | Bromley | 2007 |
| A.R.S Export Ltd | Hornchurch | 2018 |
| A.R.S Holdings Trading Ltd | High Wycombe | 2026 |
| A.R.Stockton & Co. Limited | | 1953 |
| A.R.T Maison Ltd | Bonnybridge | 2025 |
| A.R.T School of Motoring Ltd | Birmingham | 2015 |
| A.R.T Smart Repairs Ltd | Uxbridge | 2025 |
| A.R.T. Foods Limited | Shrewsbury | 2014 |
| A.RETAIL1 Limited | Bradford | 2024 |
| A.Rh.A. London Limited | Hounslow | 2025 |
| A.Robinson & Sons(Garages) | Ilkeston | 1953 |
| A.Romani Limited | London | 2013 |
| A.Ron's Security Ltd | Padstow | 2019 |
| A.S Accessories Company Limited | Kenilworth | 2018 |
| A.S Accident Repair Centre Ltd | Oldbury | 2023 |
| A.S Autoworks Limited | Knaresborough | 2025 |
| A.S Business Solutions Ltd | Newport | 2021 |
| A.S Commercials Ltd | Darwen | 2022 |
| A.S Corporation Limited | Oldbury | 2021 |
| A.S Cotton Xperts Ltd | London | 2021 |
| A.S Digital World Ltd | London | 2026 |
| A.S Emporia Ltd | Warrington | 2025 |
| A.S News Bolton Ltd | Bolton | 2020 |
| A.S OFF Licence Ltd | Bestwood Park | 2013 |
| A.S Tech World Limited | Doncaster | 2025 |
| A.S Vehicle Services Ltd | Redditch | 2026 |
| A.S. Broadley (Developments) Limited | Leeds | 1990 |
| A.S. Carlton Limited | London | 2007 |
| A.S. Compa Ltd | London | 2026 |
| A.S. Drilling Limited | Stockport | 2000 |
| A.S. Duncan Limited | London | 2001 |
| A.S. Facer (Longton) Limited | Preston | 1954 |
| A.S. Gulf Services (U.K.) Limited | Cardiff | 1983 |
| A.S. Limited | Coventry | 2002 |
| A.S. Meakin Ltd | Colchester | 2019 |
| A.S. Motor Repairs Limited | Blaydon-On-Tyne | 2016 |
| A.S. Parkhurst (Opticians) Limited | Doncaster | 1988 |
| A.S. Prime Trading Ltd | London | 2023 |
| A.S. Rota Ltd | Cheltenham | 2024 |
| A.S.A Distribution Midlands Ltd | Birmingham | 2020 |
| A.S.A International Orpington Ltd | Orpington | 2024 |
| A.S.A Universal Limited | Glasgow | 2024 |
| A.S.A.J. Limited | Great Leighs | 2011 |
| A.S.A.P. Tyres & Exhausts Limited | London | 1992 |
| A.S.Bone and Sons Limited | Hants | 1938 |
| A.S.C Business Enterprises Limited | Luton | 2017 |
| A.S.C. Metals Limited | Northamptonshire | 1979 |
| A.S.C. Timber Supplies Limited | Lancs | 1960 |
| A.S.Cars (UK) Ltd | Dunstable | 2009 |
| A.S.D.E.B. Ltd | London | 2023 |
| A.S.G Technical Automotive Ltd | Stafford | 2024 |
| A.S.G. Crumbs Limited | Waterlooville | 2014 |
| A.S.G.S. Limited | Consett | 2003 |
| A.S.H Globals Ltd | London | 2026 |
| A.S.H. Imports (UK) Limited | South Croydon | 2009 |
| A.S.H.S. USA Limited | London | 2001 |
| A.S.K Recovery Limited | Cardiff | 2011 |
| A.S.K. Innovations Ltd | Slough | 2024 |
| A.S.K.Convinces Store Limited | Blackpool | 2025 |
| A.S.Leisure Ltd | Northampton | 2018 |
| A.S.M Independent Ltd | Wakefield | 2024 |
| A.S.M. Print Ltd | Leamington Spa | 2021 |
| A.S.Ockwell Limited | Cardiff | 1955 |
| A.S.R Garage Ltd | Ramsgate | 2025 |
| A.S.R Motor Repair Limited | Ramsgate | 2026 |
| A.S.S.J Business Ltd | London | 2025 |
| A.S.S.J Limited | Alfreton | 2017 |
| A.S.T. Services Limited | Welwyn Garden City | 1995 |
| A.Sdistross Ltd | Bristol | 2025 |
| A.Sullivan NW Ltd | Liverpool | 2024 |
| A.T & Sons (Global) Limited | Cheadle | 2025 |
| A.T Body Shop and Autos Ltd | Sheffield | 2024 |
| A.T Car Sales Limited | Kettering | 2012 |
| A.T Ecom Ltd | Cardiff | 2024 |
| A.T Sports Limited | London | 2013 |
| A.T Supply Limited | Gravesend | 2024 |
| A.T Trading Limited | Stourbridge | 2014 |
| A.T-Chambers Ltd | Wolverhampton | 2021 |
| A.T. Finance Limited | Bordon | 2004 |
| A.T. Forge Ltd | London | 2026 |
| A.T. Garage Services Limited | Ashford | 2013 |
| A.T. Industries Limited | Grantham | 1994 |
| A.T. Little & Sons Limited | Melton | 1982 |
| A.T. Maycock & Sons Limited | London | 1975 |
| A.T. Medical Ltd | Bournemouth | 2010 |
| A.T. Motors Ltd | Blackwood | 2010 |
| A.T. Studio Limited | Croydon | 2008 |
| A.T. Wilde and SON Limited | Shrewsbury | 1984 |
| A.T.A. (Builders & Plumbers Merchants) Limited | Cleckheaton | 1996 |
| A.T.A. (Engineering Processes) Limited | Hemel Hempstead | 1963 |
| A.T.A.S Express Ltd | Ramsgate | 2020 |
| A.T.C.Cars Ltd | Kidderminster | 2014 |
| A.T.D.K Ltd | Nottingham | 2025 |
| A.T.E Prime Services Ltd | Porth | 2025 |
| A.T.I. Furnitures Ltd | London | 2022 |
| A.T.L Cars & Recovery Ltd | Stoke-On-Trent | 2025 |
| A.T.L. Hydraulics Limited | Leicestershire | 2000 |
| A.T.L. Recovery Limited | Huddersfield | 2010 |
| A.T.Locksmiths Limited | Bristol | 2021 |