| A. K. Foods (Cambridge) Ltd. | Cambridge | 2011 |
| A. K. Impex Limited | Leicestershire | 2004 |
| A. Keller & Sons Limited | London | 1957 |
| A. Kelly Limited | Dundee | 1982 |
| A. Kilna Limited | Glasgow | 1996 |
| A. L. JAY Electrical Limited | Gerrards Cross | 2000 |
| A. L. Tyres Limited | Cheshire | 2000 |
| A. L. Vintage Toys Limited | Walsall | 2018 |
| A. Lewis & Sons (Construction) Ltd | Shoeburyness | 1996 |
| A. Luff & Sons Limited | Woking | 1995 |
| A. M. & Sons (HMC) Ltd | Sheffield | 2012 |
| A. M. Gearboxes Ltd | Henley-On-Thames | 2025 |
| A. M. Savage Limited | Sheffield | 2002 |
| A. M. Sheppard Limited | Drayton | 2011 |
| A. M. Sports Cars Ltd | Worcestershire | 1987 |
| A. M. Summers Limited | Doncaster | 2002 |
| A. M. Vision Limited | York | 2002 |
| A. Maos Limited | Birmingham | 2013 |
| A. Marullo Studios Ltd | London | 2023 |
| A. Melbourne Ltd | Wakefield | 2000 |
| A. Menarini Diagnostics Limited | Wokingham | 1987 |
| A. Moiz Pound Plus Ltd | Preston | 2017 |
| A. N. G. Export and Import Limited | West Midlands | 2004 |
| A. N. Supplies (Wholesale Electrical Distributors) Limited | Bridgend | 1976 |
| A. Nolan Limited | London | 1997 |
| A. Nuguman Ltd | London | 2023 |
| A. O. Seafoods Limited | Burnley | 2004 |
| A. Oakes Limited | Worcester | 1940 |
| A. Oliveros Ltd | London | 2021 |
| A. Optometry Ltd | Manchester | 2022 |
| A. P. a. Limited | Blackburn | 1994 |
| A. P. Autocare Limited | Bristol | 2006 |
| A. P. Imaging Limited | Edgware | 2012 |
| A. P. Shipping Machinery Sales Ltd | Hull | 2017 |
| A. Pakeeza Trading Limited | | 2004 |
| A. Pearson (Family Butchers) Limited | Hyde | 1986 |
| A. Peirce Limited | Oxfordshire | 2001 |
| A. Pennington (Stretford) Limited | Macclesfield | 1979 |
| A. Poortman (London) Limited | London | 1950 |
| A. Procter and SON Limited | Eastbourne | 1931 |
| A. Qayum Limited | Nottingham | 2007 |
| A. R. Mills (Motors) Limited | Leighton Buzzard | 2005 |
| A. R. Peet Limited | Melton Mowbray | 2012 |
| A. R. Services (Leic) Ltd | Leicester | 2007 |
| A. R. White & SON Limited | Wolverhampton | 2005 |
| A. Raza Pharma Ltd | Blackburn | 2025 |
| A. Roberts (Civil Engineering) Ltd | Swindon | 1977 |
| A. Robertson Plumbing Supplies Limited | | 1988 |
| A. Ronai (Eastern) Limited | Tunbridge Wells | 1963 |
| A. Rose (Newark) Limited | Newark | 1948 |
| A. Rosenthal Limited | Witney | 1936 |
| A. Ross Philip (Jewellers) Limited | Livingston | 1979 |
| A. Rossier Limited | | 1979 |
| A. S Cars Leeds Limited | Leeds | 2017 |
| A. S Motors(Uk) Ltd | Sheffield | 2020 |
| A. S Weddings & Events Limited | Glasgow | 2021 |
| A. S. Fruit & VEG Limited | Birmingham | 2011 |
| A. S. Chappell & SON Ltd. | Driffield | 2002 |
| A. S. D. Wholesale Limited | Sutton In Ashfield | 1995 |
| A. S. Tyres Limited | Gateshead | 1984 |
| A. S. Virdi Limited | Hounslow | 1985 |
| A. S. Waste Removals Limited | Liverpool | 2003 |
| A. Salisbury (Dairyman) Limited | Wirral | 2003 |
| A. Searle & Company Limited | Crayford | 2008 |
| A. Share & Sons Limited | | 1937 |
| A. Smart Paving and Groundworks Limited | Manchester | 2003 |
| A. Smart Trading UK Ltd | London | 2024 |
| A. T. Cross Limited | London | 1979 |
| A. T. Organics & Wellness Ltd | Beauly | 2018 |
| A. T. Plumbing Supplies Ltd | Bedfordshire | 2003 |
| A. T. Vehicle Services Limited | Kings Lynn | 2008 |
| A. Thomas Automotives Limited | Wolverhampton | 2015 |
| A. Thorne & Co. Limited | York | 1971 |
| A. Unica Ltd | London | 2024 |
| A. V. Networking Ltd | London | 2020 |
| A. W. Ablett Limited | Liverpool | 1975 |
| A. W. Autotech Limited | | 1997 |
| A. W. Duncombe & SON Limited | Brackley | 2005 |
| A. W. Myhill & SON Limited | Dereham | 1986 |
| A. W. Nevile Limited | Lincoln | 1976 |
| A. W. Salton (Cartec) Bodyshop Ltd | Benfleet | 2018 |
| A. Watkinson Limited | York | 2024 |
| A. Wensley Service & Repairs Limited | Martock | 2006 |
| A. Whalebone Building Supplies Ltd. | Brentwood | 1993 |
| A. Wolf Ltd | London | 2019 |
| A. Woolston (Antiques) Limited | London | 1990 |
| A.& F.A. Dundee Limited | | 1957 |
| A.& S. Donaldson (Northern Ireland) Limited | Lisburn | 1973 |
| A.& S. Motors Limited | Gosport | 1996 |
| A.& S.Manuel Limited | Glamorgan | 1958 |
| A.& W.Cushion Limited | Norwich | 1937 |
| A.&J.M. Sheppard Limited | South Croydon | 1975 |
| A.1. Vehicle Rescue Services Limited | Lancs | 1987 |
| A.A Automotive Dealership Limited | London | 2021 |
| A.A Diamond Valeting Ltd | London | 2023 |
| A.A Euro Textile Ltd | Newcastle Upon Tyne | 2021 |
| A.A General Stores Ltd | Manchester | 2016 |
| A.A Luxuries Ltd | Hemel Hempstead | 2024 |
| A.A Slick Tyres Ltd | Kidderminster | 2018 |
| A.A Tyres & Autocentre Ltd | Oxenhope | 2022 |