| Anecdote Creative Limited | London | 2024 |
| Anecus Ltd | London | 2025 |
| Aneeas Limited | Gillingham | 2022 |
| Aneem Consultancy Limited | London | 2017 |
| Aneemo Limited | London | 2018 |
| Anefiox Ltd | Birmingham | 2011 |
| Anegis UK Ltd | London | 2013 |
| Aneil Karia Ltd | Wimborne | 2025 |
| Anek Media Limited | Hertford | 2024 |
| Aneka Digital Solutions Ltd | London | 2025 |
| Aneka Limited | Coventry | 2009 |
| Aneli Consulting Limited | Feltham | 2025 |
| Anelixis Ltd | Harrow | 2018 |
| Anemetrics Ltd | Whitehills Business Park | 2019 |
| Anemo Labs Limited | London | 2025 |
| Anemo Music Ltd | Uckfield | 2007 |
| Anemo Software Limited | Brighton | 2022 |
| Anemoi Techon Ltd | London | 2025 |
| Anemoia Labs Ltd | Bury St. Edmunds | 2024 |
| Anemoia Ltd | London | 2025 |
| Anemoly Limited | London | 2019 |
| Anemone XR Ltd | Sheffield | 2023 |
| Anemos Books Ltd | Poole | 2018 |
| Anemos-Analytics Ltd | Motherwell | 2024 |
| Anenta Itech Limited | Watford | 2017 |
| Anentropic Ltd | Cambridge | 2013 |
| Anenzo Ltd | London | 2019 |
| Aneonetics Consulting Limited | London | 2026 |
| Anephenix Ltd | London | 2012 |
| Anera Labs UK Ltd | London | 2025 |
| Anergy Tech Ltd | Reading | 2024 |
| Anerlyx Pro Ltd | London | 2025 |
| Anero Consulting Ltd | Bedford | 2011 |
| Anesto Limited | London | 2017 |
| Aneta Jakubas Photography Ltd | Grays | 2023 |
| Anete Lusina Ltd | Leeds | 2022 |
| Aneto Digital Ltd | London | 2022 |
| Aneto Digital Services Ltd | Milton Keynes | 2013 |
| Anetsol Ltd | London | 2009 |
| Anetwork Limited | Weymouth | 2002 |
| Aneva Technologies Limited | Watford | 2025 |
| Anevendo Media Ltd | London | 2025 |
| Anewfn Ltd | London | 2018 |
| Anewlife CIC | London | 2023 |
| Anewthing Consulting Limited | Gravesend | 2019 |
| Anexiq Ltd | London | 2025 |
| Anexis Consulting Ltd | Derby | 2026 |
| Anexxa Ltd | London | 2025 |
| Anexys Communications Limited | Farnham | 2007 |
| ANF Digital Ltd | Cardiff | 2022 |
| Anfa Management Ltd | Mildenhall | 2022 |
| Anfade Limited | Enfield | 2019 |
| Anfal PVT Ltd | Slough | 2013 |
| Anfal Trading & Financial Services Ltd | London | 2025 |
| Anfield Go Local Limited | Liverpool | 2019 |
| Anfield IT Solutions Limited | London | 2013 |
| Anfika Consultants Limited | Harrow | 2017 |
| Anfilms Ltd | Croydon | 2022 |
| Anfold Software Limited | London | 2009 |
| Anfs Advisors Ltd | Hornchurch | 2024 |
| ANG Capital Group Ltd | Cardiff | 2023 |
| ANG Investments Limited | Barnet | 2016 |
| ANG IT Consulting Limited | Wrexham | 2006 |
| ANG Magazines Ltd | Bristol | 2011 |
| ANG Network Limited | London | 2012 |
| ANG Technologies Ltd | London | 2026 |
| Ang-Tech Services Limited | London | 1996 |
| Anga Labs Ltd | London | 2024 |
| Anga Networks Ltd | London | 2024 |
| Angabit Ltd | Woking | 2015 |
| Angad Technologies Limited | Reading | 2012 |
| Angalam Ltd | Chelmsford | 2013 |
| Angaluri Solutions Limited | Feltham | 2011 |
| Angara Global Limited | London | 2015 |
| Angarika Limited | Haslemere | 2013 |
| Angarun Limited | Huntingdon | 2017 |
| Angband Software Services Limited | Berkshire | 1993 |
| Angdim Technology Ltd | Totnes | 2022 |
| Ange Solutions Limited | Edinburgh | 2011 |
| Angel & Lockhart (Transaction Services) Ltd | Lymington | 2023 |
| Angel & Lockhart Group Ltd | Mayfair | 2017 |
| Angel Academe Ltd | Shoreham-By-Sea | 2007 |
| Angel Advisors Ltd | Watford | 2024 |
| Angel Alerts Ltd | Chelmsford | 2012 |
| Angel Analythical Ltd | London | 2023 |
| Angel Analytics and Research Limited | Poole | 2016 |
| Angel Analytics Limited | London | 2013 |
| Angel Applications Limited | Newcastle Upon Tyne | 2022 |
| Angel Aura Limited | London | 2023 |
| Angel BC Ltd | Coventry | 2019 |
| Angel Blend Limited | London | 2025 |
| Angel Blue Consultancy Limited | Reading | 2021 |
| Angel Book Publishing Limited | Northwich | 2023 |
| Angel Bridge Publishing Ltd | London | 2026 |
| Angel Business Communications Limited | Coventry | 1985 |
| Angel Business Consultants Limited | Cardiff | 2016 |
| Angel Business Limited | Wallington | 2019 |
| Angel Call Handling Ltd | Andover | 2017 |
| Angel CRO Ltd | London | 2024 |
| Angel Dash Associates Ltd | Aylesbury | 2019 |