| AFS Enterprises Limited | London | 2002 |
| AFS Media Limited | Ellesmere Port | 2022 |
| AFS SAP Solutions Limited | Tonbridge | 2014 |
| AFS Solutions Limited | Marston Moretaine | 2004 |
| AFS Technologies & Marketing Ltd | Northolt | 2020 |
| Afsana Press Ltd | Folkestone | 2021 |
| Afsd Limited | Hamilton | 2025 |
| Afsheen & Co Limited | London | 2019 |
| AFT Media Limited | Preston | 2023 |
| AFT Servicios Limited | Huddersfield | 2024 |
| AFT Solutions Ltd | London | 2014 |
| Afta Party Records Limited | Cleckheaton | 2022 |
| Aftab Iqbal Vision UK Limited | Nelson | 2024 |
| Aftab Music Ind-S-Series Ltd | Birmingham | 2024 |
| Aftab Q Limited | Woking | 2017 |
| Aftab Software Services Ltd | Stockport | 2021 |
| Aftc Fiscal Services UK Ltd | Brighton | 2018 |
| Aftc Ltd | Swansea | 2005 |
| Aftcastle Ltd | Manchester | 2025 |
| Aftech++ Ltd | Chatham | 2026 |
| After ALL Studio Ltd | London | 2009 |
| After Dark Assets Ltd | Glasgow | 2025 |
| After Dark Entertainments Limited | Birmingham | 2004 |
| After Dark Games Ltd | Leamington Spa | 2022 |
| After Dark Productions Ltd | London | 2025 |
| After Dark Studios Ltd | London | 2010 |
| After Desk AI Ltd | Manchester | 2026 |
| After Dream Pictures Ltd | London | 2025 |
| After Eden Productions Limited | Uckfield | 2018 |
| After Everything Ltd | London | 2025 |
| After Frames Ltd | London | 2025 |
| After Frankenstein Limited | Bridgwater | 2014 |
| After Hours Collective Ltd | Chipping Norton | 2026 |
| After Hours IT Ltd | London | 2016 |
| After I AM Gone Limited | Pinner | 2020 |
| After Inflection C.I.C. | Bristol | 2026 |
| After Love Production Limited | London | 2019 |
| After Maghrib Media Group Limited | London | 2023 |
| After Market Technologies Ltd | Sudbury | 2017 |
| After Motion Digital Ltd | Luton | 2026 |
| After Motion Media Limited | Bristol | 2025 |
| After My Death Ltd | London | 2024 |
| After Next Limited | London | 2025 |
| After Noon Music Limited | Clitheroe | 2023 |
| After Office Hours Limited | Nomansland | 2004 |
| After Party Studios Limited | Worthing | 2016 |
| After Premise Ltd | Newport | 2014 |
| After School Club Productions Ltd | London | 2024 |
| After School Waffle 2 Limited | Richmond Upon Thames | 2025 |
| After School Waffle Limited | Richmond Upon Thames | 2024 |
| After Studios UK Ltd | London | 2016 |
| After Technologies Limited | London | 2018 |
| After the News Limited | Glasgow | 2005 |
| After Thought Media Ltd. | Wimbledon | 2017 |
| After US, Separation and Divorce Ltd | Northwood | 2023 |
| After.Marketing Limited | Shrewsbury | 2017 |
| AFTER5 Digital Ltd | London | 2025 |
| Afterbanks Ltd | London | 2018 |
| Afterbeet Ltd | London | 2026 |
| Afterbirth Limited | London | 2024 |
| Afterbook Limited | Belfast | 2017 |
| Afterburn Films Ltd | London | 2023 |
| Afterburn Productions Limited | London | 2023 |
| Afterburner Consulting Limited | London | 2019 |
| Afterburner Genesis Ltd | Kings Langley | 2025 |
| Afterburner Software Limited | Whitehills Business Park | 2012 |
| Afterburner Stardust Ltd | Kings Langley | 2025 |
| Afterdark Enterprises Limited | Bristol | 2019 |
| Afterdark Interactive Ltd | London | 2025 |
| Afterdark LAB Ltd | Shipley | 2025 |
| Afterdark Post Production Limited | London | 2025 |
| Afterecho Ltd | Hamilton | 2026 |
| Afterfall Studios Ltd | Ruthin | 2026 |
| Afterfiles Ltd | Alva | 2020 |
| Afterflight Enterprises Ltd | London | 2020 |
| Afterflow Studio Ltd | London | 2026 |
| Afterform Studio Ltd | London | 2026 |
| Afterglow Design Limited | Skelmersdale | 2014 |
| Afterglow Group Limited | Mildenhall | 2019 |
| Afterglow Intelligence Ltd | Haslemere | 2026 |
| Afterglow Labs Ltd | London | 2025 |
| Afterglow Media Ltd | Colchester | 2016 |
| Afterglow Movie Ltd | Sheffield | 2026 |
| Afterglow Television Limited | London | 2005 |
| Afterguard Ltd | Welwyn Garden City | 2020 |
| Afterhours Enterprises Ltd | Leicester | 2025 |
| Afterhours LDN Limited | London | 2025 |
| Afterhouse Ltd | London | 2025 |
| Afterimage Productions Limited | Harrogate | 2011 |
| Afterimage Software Ltd | London | 2026 |
| Afterlife Productions Ltd | Birmingham | 2024 |
| Afterlife Services Ltd | Coventry | 2022 |
| Afterlife Story LAB Ltd | Bristol | 2026 |
| Afterlife Studios Ltd | Wellingborough | 2015 |
| Afterlife Technologies Ltd | London | 2025 |
| Afterlife Ventures Limited | London | 2021 |
| Afterlife Wallet Ltd | London | 2026 |
| Afterlight Comics Ltd | London | 2020 |
| Afterlight Studios Limited | Birmingham | 2025 |
| Afterlight Ventures Ltd | Bury St. Edmunds | 2026 |