| Academy Dancewear Limited | Bolton | 2024 |
| Academy Elevate Limited | London | 2024 |
| Academy Entertainments Group Ltd | Liverpool | 2023 |
| Academy Fine Paintings Ltd | Stanmore | 2011 |
| Academy Food Imports Ltd | Ilford | 2019 |
| Academy Foodservice Ltd | Cheltenham | 2020 |
| Academy House Furnishers Limited | Glasgow | 1972 |
| Academy ICT Limited | Pershore | 2015 |
| Academy Metals Ltd | Romford | 2020 |
| Academy of Historical Arts Ltd | Glasgow | 2015 |
| Academy of Irmbr Ltd | London | 2025 |
| Academy of Natalia Kobylkina Ltd | London | 2021 |
| Academy of Sports Nutrition Ltd | Feltham | 2016 |
| Academy of Wealth Ltd | London | 2020 |
| Academy Performance Supplies and Productions Limited | Tendring | 2019 |
| Academy Pro Limited | St. Helens | 2018 |
| Academy Remedial Treatments Limited | Grantham | 1997 |
| Academy Roofing Supplies Limited | Hornchurch | 2006 |
| Academy Sales Consortium Ltd | Yateley | 2009 |
| Academy Schoolwear Limited | Bearpark | 2007 |
| Academy Sports & Leisure Limited | Cheltenham | 2006 |
| Academy Sports (UK) Ltd | Doncaster | 2011 |
| Academy Street Auto Repair Ltd | Forfar | 2026 |
| Academy Street Body Shop Ltd | Barry | 2013 |
| Academy Upholstery Limited | East Drayton | 2004 |
| Academy Wear UK Ltd | Durham | 2013 |
| Academy Wholesale Electrics Limited | Lanarkshire | 1979 |
| Academy Workwear & Promotions Limited | Chorley | 2008 |
| ACADEMY2EARN Limited | London | 2024 |
| Acadia Ventures Ltd | London | 2026 |
| Acadimia CIC | London | 2025 |
| Acado Motors Limited | Inverness | 2025 |
| Acae Group Ltd | Dagenham | 2026 |
| Acai Berry (KR Chelsea) Ltd | London | 2018 |
| Acai Berry Foods - Kingly Court Ltd | London | 2017 |
| Acai Enterprises Ltd | Liverpool | 2022 |
| Acai Foods UK Limited | Wigan | 2018 |
| Acai Guara Boost Food & Beverages Ltd | Brighton | 2025 |
| Acai Life Limited | Birmingham | 2019 |
| Acai Lifestyle Ltd | London | 2026 |
| Acai ME Ltd | Sheffield | 2025 |
| Acai Social Club Ltd | London | 2026 |
| Acai Xooi Ltd | London | 2023 |
| Acaia Co. Ltd | London | 2024 |
| Acaiberry Ltd | Coventry | 2026 |
| Acakgee Ltd | Luton | 2026 |
| Acal BFI UK Limited | Wokingham | 1984 |
| Acal Engineering Ltd | Motherwell | 2018 |
| Acala Online Ltd | Kingston Upon Thames | 2018 |
| Acalypha Security Limited | Cardiff | 2025 |
| Acaman Limited | London | 2008 |
| Acamar Limited | Weybridge | 2005 |
| Acamentor Limited | London | 2021 |
| Acana Care Ltd | Ruislip | 2020 |
| Acantha Crystals Limited | Carlisle | 2022 |
| Acantha Group Limited | Leighton Buzzard | 2020 |
| Acanthion Ltd | Tunbridge Wells | 2019 |
| Acanthus Auctions Ltd | Salisbury | 2025 |
| Acanthus Contracts Limited | Knaresborough | 1993 |
| Acanthus Interiors Ltd | Edinburgh | 2024 |
| Acanthus Online Ltd. | Dundee | 2014 |
| Acapella Academy Ltd | Enfield | 2021 |
| Acapulco Studios Limited | London | 2022 |
| Acar 2 Go Ltd | Aylesbury | 2007 |
| Acar 68 Meats Ltd | Waltham Abbey | 2009 |
| Acar Akgun Ltd | London | 2019 |
| Acar Global Ltd | London | 2025 |
| Acar Investments Limited | Morden | 2026 |
| Acar Retail Ltd | London | 2023 |
| Acar Supermarket Limited | Waltham Abbey | 2015 |
| Acar Trading Ltd | Durham | 2023 |
| Acara Naturals Limited | St. Neots | 2026 |
| Acarbeyoglu Global Ltd | London | 2025 |
| Acardenix Limited | London | 2024 |
| Acardia Limited | Croydon | 2024 |
| Acare Leisure Ltd | Greater Manchester | 2006 |
| Acareeradvisors Limited | London | 2025 |
| Acarlar Global Ltd | London | 2025 |
| Acarline Ltd | London | 2025 |
| Acarson Trading Ltd | London | 2019 |
| Acas Bathrooms Sunderland Ltd | Washington | 2023 |
| Acas Electrical (Online) Ltd | Batley | 2023 |
| Acas Electrical (Wholesale) Ltd | Batley | 2023 |
| Acas Electrical Limited | Batley | 2014 |
| Acas Global Ltd | London | 2021 |
| Acasa London Ltd | Dorking | 2021 |
| Acasa RO Ltd | Northampton | 2016 |
| Acasa Solutions Ltd | Birmingham | 2024 |
| Acasca Limited | Belfast | 2025 |
| Acashc Ltd | Warlingham | 2024 |
| Acasia EDU Ltd | London | 2020 |
| Acasia Studios Limited | Mildenhall | 2026 |
| Acaso London Ltd | London | 2020 |
| Acast Ltd | London | 2020 |
| Acaster Marine Limited | York | 2010 |
| Acaster Steel Limited | York | 1990 |
| Acasyn Ltd | London | 2026 |
| Acava Superfoods Ltd | Bolton | 2025 |
| Acaw Trading Limited | London | 2019 |
| ACB Commerce Ltd | London | 2025 |