| Amenys Limited | Mildenhall | 2019 |
| Amenz Ltd | London | 2026 |
| Ameo Limited | London | 2019 |
| Ameora Ltd | Saffron Walden | 2024 |
| Amer Abdo Al-Qetwi Ltd | Manchester | 2026 |
| Amer Asiri Food & Beverage Ltd | Banbury | 2025 |
| Amer Enterprises Ltd | Southall | 2026 |
| Amer Garments Ltd | London | 2020 |
| Amer Holdings Ltd | Ilford | 2024 |
| Amer Motors Ltd | London | 2022 |
| Amer Superfresh Limited | London | 2005 |
| Amera Aven Limited | Belfast | 2025 |
| Amera Pharma Services Limited | Cheadle | 2025 |
| Ameraki Limited | London | 2015 |
| Amerang Limited | Waltham Cross | 2013 |
| Amerati Stayl Ltd | Manchester | 2025 |
| Amerco Electrical Distributors Limited | Hoddesdon | 1999 |
| Ameretat Limited | Sutton | 2018 |
| Ameri-Camden Limited | London | 2020 |
| Ameribag (UK) Limited | London | 2004 |
| America II Europe Limited | London | 1994 |
| America Services Limited | London | 2021 |
| AMERICA2UK Limited | Dewsbury | 2025 |
| Americajacket Ltd | Edinburgh | 2020 |
| American and Speciality Auto Parts Limited | Salford | 1993 |
| American Arabian Limited | Birmingham | 2026 |
| American Auto Finishers Ltd | Whetstone | 2018 |
| American BBQ Grill Ltd | Ilford | 2023 |
| American Biochemical and Pharmaceuticals Limited | Northwood | 1995 |
| American Bites Ltd | London | 2014 |
| American Brands Limited | Reading | 2025 |
| American Burger Joint Limited | Birmingham | 2023 |
| American Candi Evapo Ltd | Sunderland | 2026 |
| American Candy & Drinks Ltd | Ayr | 2026 |
| American Candy & Grocery Ltd | Liverpool | 2025 |
| American Candy & Vape Limited | Bournemouth | 2023 |
| American Candy & Vape Shop Ltd | Wallsend | 2026 |
| American Candy 5STAR Ltd | Southampton | 2023 |
| American Candy AYR Ltd | Ayr | 2025 |
| American Candy Corner Ltd | Ipswich | 2023 |
| American Candy House UK Limited | London | 2022 |
| American Candy Ltd | London | 2022 |
| American Candy Market Ltd | Kettering | 2025 |
| American Candy Midlands Limited | Leicester | 2024 |
| American Candy N Drinks Ltd | Bolton | 2026 |
| American Candy Newark Ltd | Newark | 2024 |
| American Candy Renshaw Street Ltd | Liverpool | 2024 |
| American Candy Street Ltd | London | 2021 |
| American Candy Super Store Ltd | Bromsgrove | 2023 |
| American Candy Wigan Ltd | Wigan | 2025 |
| American Candy World 20 Ltd | Bolton | 2018 |
| American Candy's & Soda Ltd | Edinburgh | 2018 |
| American Car Solutions Ltd | Birmingham | 2021 |
| American Caravans Ltd | Boston | 2023 |
| American Cars & Trucks Ltd | Cardiff | 2018 |
| American Cars Online Ltd | Salford | 2019 |
| American Cars UK Limited | Bridgend | 2019 |
| American Chews Limited | Newcastle Upon Tyne | 2024 |
| American Chrome Limited | Dronfield | 2013 |
| American Classic Cars Ltd | London | 2023 |
| American Coast Ltd | London | 2023 |
| American Company for Import and Export Ltd | Manchester | 2023 |
| American Confectioners Ltd | Bradford | 2023 |
| American Confectionery & Vapes Limited | Bolton | 2026 |
| American Continental Limited | Christchurch | 2011 |
| American Corner Limited | London | 2025 |
| American Crewe Shop Ltd | Crewe | 2025 |
| American Development Academy Ltd | London | 2025 |
| American Dream Cosmetics Limited | Luton | 2019 |
| American Drinks Limited | St. Albans | 2004 |
| American Exports Ltd | Haywards Heath | 2026 |
| American Fizz (UK) Limited | Christchurch | 2011 |
| American Fizzy Ltd | Wigan | 2026 |
| American Flavours Ltd | Dewsbury | 2021 |
| American Fried Chicken Ltd | Harrow | 2019 |
| American GAS Safety (UK) Ltd | Bolton | 2017 |
| American Global Auto Company Ltd | Manchester | 2026 |
| American Global Health Investment Ltd | Southall /London | 2024 |
| American Global Investment Ltd | London | 2024 |
| American Golf (Trading) Limited | Warrington | 2018 |
| American Golf Car Wash Ltd | Chislehurst | 2013 |
| American Groceries Ltd | Dalry | 2025 |
| American Group Limited | Kington | 2026 |
| American Importers UK Ltd | London | 2022 |
| American LED Group Distribution Ltd | Liverpool | 2025 |
| American Leisure International Limited | Skelmersdale | 2012 |
| American Luggage Ltd | Harrogate | 2026 |
| American Luxuries Ltd | London | 2024 |
| American Machine (Europe) Ltd | Grimsby | 2025 |
| American Motorhome Services Ltd | Roade | 2025 |
| American Museum Enterprises Limited | Bath | 1950 |
| American OFF Road Ltd | Burton-On-Trent | 2026 |
| American Oriental Candy & Vape Ltd | Southampton | 2024 |
| American Pacific Computers Limited | Milton Keynes | 1990 |
| American Plus Ltd | Corby | 2025 |
| American Prime Soloution Ltd | Rochdale | 2025 |
| American RV Center Ltd | Oakington | 2018 |
| American RV Parts UK Ltd | Cheltenham | 2018 |
| American School BUS UK Ltd | Corsham | 2025 |
| American Seasonal Home Ltd | Polegate | 2025 |