| AC Scenic Painting Ltd | Ashford | 2023 |
| AC Sports Coaching Limited | Devizes | 2024 |
| AC Talent Sports & Entertainment UK Limited | London | 2019 |
| AC Tattoo Ltd | Preston | 2024 |
| AC Wellness and Development Ltd | Wiltshire | 2019 |
| AC Wollaton | Nottingham | 2018 |
| AC6 W2 Ltd | Kilsyth | 2024 |
| AC8 Football Academy Limited | Leeds | 2019 |
| ACA M Sports Limited | Bromsgrove | 2018 |
| ACA Management Ltd | Oldham | 2025 |
| Acacia Centre Limited | Nottingham | 2010 |
| Acacia Workshops Ltd | Doncaster | 2025 |
| Academi Berfformio Caerdydd CYF | Cardiff | 2013 |
| Academia BJJ Lifestyle UK Ltd | Southport | 2014 |
| Academia DE Salsa (UK) Ltd. | Glasgow | 2004 |
| Academic Facilities Services Ltd | Holsworthy | 2024 |
| Academy (Romsey) Limited | Romsey | 2010 |
| Academy Angels Limited | Bishop Auckland | 2020 |
| Academy Arts by Ebony & Jalisa Ltd | Port Talbot | 2019 |
| Academy Arts Limited | Epping | 2005 |
| Academy Cheer Ltd | Widnes | 2022 |
| Academy Coaching Company Ltd | Liverpool | 2023 |
| Academy Conditioning Ltd | London | 2014 |
| Academy Costumes Limited | London | 1990 |
| Academy DE Gubernatis Limited | Beaconsfield | 2014 |
| Academy Events Ltd | March | 2012 |
| Academy London Limited | London | 2024 |
| Academy Motorsport Limited | Wolverhampton | 2011 |
| Academy Music Group Limited | | 1997 |
| Academy North Ltd | Liverpool | 2018 |
| Academy of Burlesque and Cabaret Ltd. | Edinburgh | 2006 |
| Academy of Creative Theatre Ltd | Cromarty | 2025 |
| Academy of Creative Training Ltd | Worthing | 2005 |
| Academy of Dance Limited | Wigan | 2023 |
| Academy of Dance RAH Ltd | Mansfield | 2023 |
| Academy of Dreamz Ltd | Erith | 2025 |
| Academy of Expressive Arts Limited | Stonehaven | 2020 |
| Academy of Gymnastics Club Limited | Bristol | 2002 |
| Academy of Gymnastics Ltd | Renfrew | 2020 |
| Academy of London Limited | London | 1987 |
| Academy of Martial Arts Birmingham UK Limited | Birmingham | 2018 |
| Academy of Souls Ltd | London | 2025 |
| Academy of Sport Limited | Edinburgh | 2000 |
| Academy of ST Martin in the Fields | London | 1984 |
| Academy One Dance Company Ltd | London | 2025 |
| Academy Sailing Limited | Rayleigh | 2021 |
| Academy Soccer Limited | Billericay | 2006 |
| Academy Swim School Ltd | Camberley | 2018 |
| ACADEMY55 Limited | Bicester | 2025 |
| Academyforartdesign Limited | London | 2017 |
| Academykicks Ltd | Bromsgrove | 2019 |
| Acadian Leisure Limited | Sheerness | 2003 |
| Acamar Songs Limited | Bristol | 2017 |
| Acao Social Ltd | St. Albans | 2022 |
| Acaply Ltd | London | 2026 |
| Acasta Developments Limited | Cheltenham | 2012 |
| Acaster Fitness Ltd | Selby | 2022 |
| Acaster Gymnastics Ltd | Selby | 2022 |
| ACC 2023 Limited | Aberdeen | 2023 |
| Accasnap Ltd | Selby | 2026 |
| Accatap Ltd | London | 2025 |
| ACCELER8 Competitions Ltd | Perth | 2023 |
| Accelerate Active Limited | Bolton | 2023 |
| Accelerate Competitions Ltd | Ruislip, | 2025 |
| Accelerate Gym Ltd | Slough | 2025 |
| Accelerate Mgmt Ltd | London | 2021 |
| Accelerate People Solutions Limited | Doncaster | 2011 |
| Accelerate Productions / Events by Knight Limited | Essex | 2004 |
| Accelerate Rugby Ltd | Edinburgh | 2021 |
| Accelerate Running Company Ltd | Doncaster | 2018 |
| Accelerate Tennis Limited | Linlithgow | 2016 |
| Accent Audio Ltd | Polegate | 2019 |
| Accent London Ltd | London | 2017 |
| Accent Percussion Community Interest Company | Brackley | 2023 |
| Accept Management Ltd | Lincoln | 2012 |
| Accept You'Re a Stranger Productions Limited | London | 2022 |
| Access 27 Ltd. | Wirral | 2017 |
| Access ALL Areas Creative Ltd | Bexhill On Sea | 2025 |
| Access ALL Areas Event Crewing Ltd | Liverpool | 2019 |
| Access ALL Areas Limited | Midway | 1996 |
| Access Artiste Management Ltd | London | 2008 |
| Access Circle Limited | Robertsbridge | 2025 |
| Access Coaching Ltd | Cramlington | 2021 |
| Access Creative Hub Ltd | Leicester | 2025 |
| Access Fashion Ltd | Windlesham | 2013 |
| Access Fit CIC | Manchester | 2025 |
| Access Fitness Limited | London | 2023 |
| Access Footage Limited | Harpenden | 2019 |
| Access Gym Ltd | Heathfield | 2025 |
| Access Karting-Uk Ltd | Wolverhampton | 2022 |
| Access Racing Limited | Stockton-On-Tees | 2016 |
| Access to Essentials CIC | Sunderland | 2026 |
| Access Touch Rugby Ltd | Ellesmere Port | 2024 |
| Access Your Sport Limited | London | 2020 |
| ACCESS2ACHIEVE CIC | Purley | 2026 |
| ACCESS93 Limited | Bedford | 2024 |
| Accessible Arts & Media | York | 1998 |
| Accessible Events Ltd | Bristol | 2022 |
| Accessible Fitness Community Interest Company | Manchester | 2025 |
| Accession Gym Ltd | Liverpool | 2023 |