| A.A&Yt Limited | Glasgow | 2024 |
| A.A. & Sons Limited | Slough | 1973 |
| A.A. Advantage Limited | Gosport | 2003 |
| A.A. Butler & Co. (Wrexham) Limited | Clwyd | 1987 |
| A.A. Clark Limited | London | 1911 |
| A.A. Gebhardt & K.P. Webster Ltd | London | 2025 |
| A.A. Hagan Ltd. | Bridge Of Weir | 2006 |
| A.A. Performance Limited | Bolton | 2008 |
| A.A. Stationers (Leicester) Limited | Loughborough | 1992 |
| A.A.A. Supply Limited | Liverpool | 1984 |
| A.A.Bramall Limited | Burton-On-Trent | 1956 |
| A.A.C. Electric Limited | Wickford | 1983 |
| A.A.G Traders Ltd | Manchester | 2025 |
| A.A.Haynes Limited | High Wycombe | 2010 |
| A.A.M.G. (Hull) Limited | Hull | 2018 |
| A.A.S.Auto Ltd | Sheffield | 2019 |
| A.A.W. Windscreens Ltd | Weymouth | 2000 |
| A.Aelectricclearance Ltd | Manchester | 2026 |
| A.Al-Hadd Ltd | Cheadle | 2023 |
| A.B Autos London Ltd | London | 2020 |
| A.B. Autos (Arundel) Limited | Arundel | 2013 |
| A.B. Building Products Limited | Andover | 1988 |
| A.B. Butchers Limited | London | 2010 |
| A.B. Car Service Limited | London | 2012 |
| A.B. Chemists Ltd | King'S Lynn | 1999 |
| A.B. Crush (Panelcraft) Limited | Canterbury | 1991 |
| A.B. Davis Limited | Edgware | 1977 |
| A.B. Distributors Limited | Belfast | 1971 |
| A.B. GEE of Ripley Limited | Ripley | 1985 |
| A.B. Hardware DIY & Gifts Ltd | Manchester | 2016 |
| A.B. Makepeace Limited | Darlington | 1977 |
| A.B. Nutrition Limited | Camberley | 1985 |
| A.B. Pharma Ltd | Oadby | 2026 |
| A.B. Sealants Northern Limited | Blackburn | 1996 |
| A.B. Sports Marketing Ltd | Dartford | 2024 |
| A.B. Wallace Engraving Limited | | 1985 |
| A.B.B Automotion Ltd | Horley | 2022 |
| A.B.B.S.Electrical Wholesale Limited | Macclesfield | 1969 |
| A.B.Buxus.Nl Ltd | Diss | 2019 |
| A.B.C for Sanitary Ware Supply Ltd | Manchester | 2026 |
| A.B.C. Tools and Fasteners Limited | Fenton Stoke-On-Trent | 1989 |
| A.B.D. Carpets Limited | Cannock | 1992 |
| A.B.Dyne Motors Limited | London | 1949 |
| A.B.I. Garage Doors Limited | Leeds | 1989 |
| A.B.K. Furnishings Limited | Boston | 2010 |
| A.B.L Trading Ltd | Southampton | 2024 |
| A.B.L. Perpack (1985) Limited | London | 1985 |
| A.B.L. Textiles Limited | London | 2024 |
| A.B.L.M. Invest Ventures Ltd | London | 2019 |
| A.B.M. Auto Repairs Ltd | Newry | 2020 |
| A.B.M.Motor Factors Limited | | 1971 |
| A.B.R. Vehicle Glazing Ltd | Lutterworth | 2005 |
| A.B.S. (Burton) Limited | Walsall | 1970 |
| A.B.S. (Scotland) Limited | Strathclyde Business Park | 1981 |
| A.B.S. Components Ltd. | Hamilton | 1996 |
| A.B.U. Motor Company Limited | Marlborough | 2011 |
| A.B.V Southeast Ltd | Barking | 2013 |
| A.Bari KBS Ltd | Birmingham | 2015 |
| A.Best Trading Limited | London | 2024 |
| A.Bhaker Limited | Newcastle Upon Tyne | 2023 |
| A.Black (Benderloch) Limited | Argyll | 1964 |
| A.Boyall Limited | Leatherhead | 1953 |
| A.Brown Motors Ltd | Hamilton | 2021 |
| A.C Mobile Services Limited | Wrexham | 2021 |
| A.C Prestige Limited | Brighton | 2018 |
| A.C Rose Ltd | London | 2020 |
| A.C Trading Group Limited | London | 2025 |
| A.C Vehicle Solutions Ltd | Shipley | 2023 |
| A.C. & M.J. Brooks Limited | London | 1966 |
| A.C. Automotive Services Ltd | Lisburn | 2024 |
| A.C. Autos - Remapping, Services and Repairs Ltd | Rushden | 2021 |
| A.C. Belting Limited | | 1979 |
| A.C. Blooms Florist Limited | Wolverhampton | 2013 |
| A.C. Cars (Sussex) Limited | Tunbridge Wells | 2019 |
| A.C. Distribution Limited | Pontypridd | 1997 |
| A.C. Eimer Ltd | Stanmore | 2013 |
| A.C. Enterprises (Services) Ltd | High Wycombe | 2024 |
| A.C. Entertainment Technologies Limited | High Wycombe | 1982 |
| A.C. Fixings Limited | Essex | 1999 |
| A.C. Flynn Refrigeration Ltd. | Birkenhead | 2007 |
| A.C. Fullerton Limited | Gordon | 2003 |
| A.C. GOR & Son’S Ltd | London | 2020 |
| A.C. Hopkins (Taunton) Limited | Exeter | 1967 |
| A.C. Limex International Limited | London | 2020 |
| A.C. Mackay & Sons Limited | | 1980 |
| A.C. Motors Trading Limited | Palmers Green | 2006 |
| A.C. Packaging Co. Limited | Bury | 1979 |
| A.C. Pumps Limited | Essex | 1993 |
| A.C. Saffron Walden Flowers Ltd | Huntingdon | 2019 |
| A.C. Special Projects Limited | High Wycombe | 1985 |
| A.C. Still Limited | Greenock | 1989 |
| A.C. Supply Limited | Bedford | 1988 |
| A.C. Technology Systems Limited | Cirencester | 1998 |
| A.C. Wood (Speciality Fibres) Limited | Bradford | 1977 |
| A.C.A. Cars (London) Limited | Edmonton | 2008 |
| A.C.C. Projects Limited | West Yorkshire | 2004 |
| A.C.C.Demonstrations Ltd | Blackpool | 2025 |
| A.C.E Auto Repairs Ltd | Loughborough | 2024 |
| A.C.E Exchange Ltd | Gravesend | 2022 |
| A.C.E Motoring & Recovery Ltd | London | 2026 |