| Anna-Louise Felstead Ltd | London | 2022 |
| Anna-Marie Henderson Ltd | Craigavon | 2024 |
| Annabel Bates Limited | Sheffield | 2015 |
| Annabel Dimmock Limited | Ware | 2017 |
| Annabel Harrison Ltd | Aylesbury | 2018 |
| Annabel Mccourt Ltd | Barton Upon Humber | 2007 |
| Annabel Owen Interior Design Limited | Worcester | 1995 |
| Annabel Spenceley Ltd | Clitheroe | 2010 |
| Annabel Williams Music Limited | Edgware | 2016 |
| Annabel's World Limited | Abingdon | 2023 |
| Annabell Bluebell Limited | Hertford | 2008 |
| Annabelle Holland Design Limited | London | 2010 |
| Annabelles Equestrian Limited | Lowestoft | 2018 |
| Annaclone Historical Society | Banbridge | 2012 |
| Annagen Leisure Limited | Nottingham | 2008 |
| Annai Natyalaya UK Limited | Wirral | 2024 |
| Annalogic Limited | Saffron Walden | 2001 |
| Annan Bodybuilding Gym Ltd | Annan | 2026 |
| Annan Wattbike Studio Ltd | Annan | 2016 |
| Annapolis Limited | London | 2017 |
| Annapurna Indian Dance Company | West Yorkshire | 2002 |
| Annbank United Community Football Club Limited | Annbank | 2024 |
| Anne Brooke Limited | Leeds | 2024 |
| Anne Curry Sculpture Ltd | Saffron Walden | 2017 |
| Anne Jirsch Limited | Bray, Berkshire | 2014 |
| Anne Nikitin Music Limited | London | 2012 |
| Anne Perry Limited | London | 2010 |
| Anne Stokes Collection Limited | Nuneaton | 2011 |
| Annephen Limited | Hassocks | 1999 |
| Annerin Entertainment Limited | Walton On Thames | 2018 |
| Annerin Productions Limited | London | 2012 |
| Annex Agency Limited | Leeds | 2015 |
| Annexe Theatre Company Limited | Kilmacolm | 1989 |
| Annexe Theatre Productions | Kilmacolm | 1997 |
| Annfield Plain CC Trading Limited | Stanley, County Durham | 2016 |
| Annfield Plain Cricket Club Limited | Stanley | 2001 |
| Annie Deadman Limited | Middlesex | 2003 |
| Annie Frost Nicholson Limited | London | 2023 |
| Annie Joy Ltd | Gloucester | 2023 |
| Annie Klaus Limited | London | 2025 |
| Annie Lord Limited | Harrow | 2026 |
| Annie Rose PT Limited | Woking | 2026 |
| Annie Shephard Design Ltd | London | 2024 |
| Annie Tour (UK) Limited | London | 2014 |
| Anniek Verholt Ltd | Brighton | 2022 |
| Annieka Ltd | London | 2026 |
| Annies Stay and Play CIC | Exeter | 2024 |
| Anno's Africa Limited | Pwllheli | 2009 |
| Announcement Productions Ltd | St. Albans | 2011 |
| Annoying Logo Limited | Yeovil | 2015 |
| Annunciation Press Limited | Maldon | 2023 |
| Annville Limited | London | 1983 |
| Annwn Studio Limited | Bristol | 2023 |
| Anomalous Collective Limited | London | 2016 |
| Anomalous Space Ltd | London | 2016 |
| Anomaly Arts Collective CIC | Sheffield | 2023 |
| Anomily Ltd | Swanley | 2025 |
| Anon Ensemble Ltd | Falmouth | 2025 |
| Anoniiem CIC | London | 2020 |
| Anonymous Climbing Club CIC | Portsmouth | 2025 |
| Anonymous Competitions Ltd | Workington | 2024 |
| Anonymous Costume Limited | Stoke-On-Trent | 2016 |
| Anonymous Entertainments Limited | Belfast | 2022 |
| Anonymous Films SPV Limited | London | 2025 |
| Anonymous IS a Woman Theatre Company C.I.C. | Malvern | 2015 |
| Anonymous Media Group Ltd | London | 2017 |
| Another Art Gallery Limited | Derby | 2010 |
| Another Artist Co Limited | Kingswinford | 2021 |
| Another Cheap Thrill Ltd | North Shields | 2025 |
| Another Creative Studio Limited | London | 2024 |
| Another Dimension Agency Ltd | Yatton | 2022 |
| Another Game Another Chance Ltd | London | 2024 |
| Another Kind of World Productions Limited | Manchester | 2022 |
| Another Level Community Fitness C.I.C. | Ware | 2024 |
| Another Level Fitness Group Limited | Bristol | 2025 |
| Another Music Festival Ltd | Sutton | 2024 |
| Another Pair of Hands Limited | London | 2006 |
| Another Planet Play 2 Ltd | London | 2026 |
| Another Planet Play Ltd | London | 2025 |
| Another Production Inc Limited | London | 2004 |
| Another Studio Pilates Ltd | Oldham | 2026 |
| Another Way Theatre Ltd | Caterham | 2016 |
| Another World Festivals Ltd | Swindon | 2017 |
| Another World Productions Limited | Coleford | 2013 |
| Anoushka Moore Fitness Ltd | Congleton | 2025 |
| Anouska Anastasia Ltd | London | 2024 |
| Anouska Procter Ltd | Broadstairs | 2014 |
| ANR Retail & Entertainment Limited | Gosport | 2025 |
| Anran Fest Ltd | Paignton | 2020 |
| Ansah Gallery Ltd | London | 2022 |
| Ansambli Artistik Lura Ltd | Barnet | 2024 |
| Ansco Arena Limited | London | 2002 |
| Ansco Edinburgh Limited | London | 2025 |
| Ansel Krut Limited | Stanmore | 2010 |
| Ansell Entertainment Ltd | London | 2013 |
| Anselmians Rugby Union Football Club Limited | Bromborough | 2010 |
| Ansett (Photography) Limited | Leigh On Sea | 2011 |
| Ansh Events Limited | Leicester | 2025 |
| Anson Museum Trust Limited | Cheshire | 1987 |
| Anstey RFC Limited | Leicester | 2010 |