| A.I.D. Fuel Oils Limited | Cannock | 1979 |
| A.I.E.W. Distribution Limited | Ilkeston | 2001 |
| A.I.M Autosales Ltd | Dundee | 2025 |
| A.I.M Products Ltd | Dundee | 2021 |
| A.I.Nahknap Ltd | Bolton | 2024 |
| A.I.O.Trading Co.(Uk) Limited | Birmingham | 2013 |
| A.Iqbal and Company Ltd | Roslin | 2022 |
| A.J Aftab Limited | London | 2025 |
| A.J and Sons Enterprise Ltd | London | 2025 |
| A.J Auto Solutions Ltd | Portsmouth | 2025 |
| A.J Character Collection Ltd | Atherstone | 2025 |
| A.J Mini Express Ltd | Scunthorpe | 2019 |
| A.J Motors Derby Limited | Derby | 2019 |
| A.J. & R.G.Barber (Sales) Limited | Shepton Mallet | 1963 |
| A.J. & R.Palmer Limited | Devon | 1983 |
| A.J. Cliffe & Sons (Butchers) Limited | Herne Bay | 2003 |
| A.J. Distributors Limited | London | 1985 |
| A.J. Evans (Holdings) Limited | Bridgend | 2024 |
| A.J. Evans Limited | Bridgend | 1999 |
| A.J. Fairlee Limited | London | 1986 |
| A.J. Ferguson and Company (Timber) Limited | Penryn | 1967 |
| A.J. Gibbons & SON Limited | Ipswich Suffolk | 1976 |
| A.J. Hayhurst Limited | Blackburn | 1978 |
| A.J. Marshall (Special Steels) Ltd | Thirsk | 1980 |
| A.J. Moore Consulting Limited | Nottingham | 2023 |
| A.J. Motors Limited | Merseyside | 2003 |
| A.J. Plumbing Supplies Limited | | 1987 |
| A.J. Reynolds Truck Services Ltd | Gillingham | 1998 |
| A.J. Stevens & Sons Limited | Blackwood | 2003 |
| A.J. Strefford (Scarborough) Limited | Scarborough | 1994 |
| A.J. Waters Salisbury Ltd | Salisbury | 2002 |
| A.J.A Global Ltd | Manchester | 2023 |
| A.J.Allen Ltd | Reading | 2024 |
| A.J.B. Spence & SON Limited | Eyemouth | 2002 |
| A.J.Busfield Limited | Preston | 1967 |
| A.J.D. Watches & Jewellery Limited | Edgware | 2015 |
| A.J.Farmer Limited | London | 1964 |
| A.J.J Ltd | Bolton | 2025 |
| A.J.Livesey (Butchers) Ltd | Leyland | 2005 |
| A.J.M Spares Ltd | Cheltenham | 2021 |
| A.J.M.Mansell Limited | Pinner | 1961 |
| A.J.N Mechanical Repairs Limited | Canvey Island | 2013 |
| A.J.N. Mechanical Services Limited | Leigh On Sea | 2005 |
| A.J.N. Steelstock Ltd. | Newmarket | 1961 |
| A.J.N. Vehicle Services Limited | Tipton | 2017 |
| A.J.R California Wines Ltd | Knotty Ash | 2018 |
| A.J.R. Elsworth Limited | Bolton | 1971 |
| A.J.Rickman Limited | London | 2010 |
| A.J.S Pro Ltd | Scunthorpe | 2023 |
| A.J.S. Embroidery Services Limited | Nottingham | 1994 |
| A.J.T Companies Ltd | Great Yarmouth | 2022 |
| A.J.W Cars & Commercials Ltd | Royston | 2023 |
| A.J.W. Distribution Limited | Chatteris | 1998 |
| A.J.Willson & Sons Limited | Wheathampstead | 1949 |
| A.Jones & Co.(Usk)Limited | Gwent | 1972 |
| A.K Auto Empire Ltd | Leicester | 2021 |
| A.K Automotive Ltd | Weston-Super-Mare | 2020 |
| A.K Fruit & VEG Ltd | Crawley | 2020 |
| A.K Glow Ltd | London | 2025 |
| A.K Hirani Group Limited | Hornchurch | 2024 |
| A.K Medical Consultancy Ltd | Darlington | 2011 |
| A.K Nakhoda Ltd | London | 2024 |
| A.K Rochdale Motors Limited | Rochdale | 2024 |
| A.K Store Ltd | Edinburgh | 2024 |
| A.K Trucks & Lifting Equipment Ltd | Manchester | 2017 |
| A.K. Ayurvedics Ltd | London | 2025 |
| A.K. Bhandari Ltd | Altrincham | 2007 |
| A.K. Bodyshop Limited | Meridian Business Park | 2008 |
| A.K. Cars (Corby) Limited | Stoke Albany | 2014 |
| A.K. Collins (Construction) Limited | Essex | 1990 |
| A.K. Commercials Limited | Bristol | 2003 |
| A.K. Convenience Stores (London) Limited | Hollinwodd | 2017 |
| A.K. Corporation Retail Ltd | Fort William | 2026 |
| A.K. Elegance Limited | Blackburn | 2024 |
| A.K. Fitted Interiors Limited | Bromsgrove | 1984 |
| A.K. Garments (MCR) Limited | Manchester | 2014 |
| A.K. General Stores Ltd | Birkenhead | 2018 |
| A.K. Halal Meats Limited | Birmingham | 2016 |
| A.K. Halal Poultry Limited | Luton | 2025 |
| A.K. Import Export Ltd | Bradford | 2019 |
| A.K. International (Imports & Exports) Limited | Kingswinford | 1993 |
| A.K. Motors Limited | Birmingham | 2009 |
| A.K. Motors Trader Ltd | Manchester | 2025 |
| A.K. Rubber & Industrial Supplies Limited | Sotherton Beccles | 1988 |
| A.K. Timms & Sons Limited | Oxon | 1978 |
| A.K. Williams and Sons Limited | Telford | 1927 |
| A.K. Wiltshire Builders and Builders Supplies Limited | Huntingdon | 1991 |
| A.K.Flight Stores Limited | Datchet | 2021 |
| A.K.Khan Limited | Leeds | 2025 |
| A.K.L. Bearing & Power Transmission Company Limited | Whitchurch | 1988 |
| A.K.M. Heating Limited | Warrington | 1996 |
| A.K.S Aika Source Company PH Ltd | Stockport | 2025 |
| A.K.Samy & SON UK Ltd | Ilford | 2026 |
| A.Kailey Ltd | Solihull | 2025 |
| A.Kairos Ltd | Newbury | 2015 |
| A.Khn Ltd | Bolton | 2024 |
| A.Kucinskis Ltd | Nottingham | 2024 |
| A.Kyriacou Industries Limited | Enfield | 2023 |
| A.L Autos Limited | London | 2025 |
| A.L Autos Mobile Mechanic Ltd | Cannock | 2025 |