| Affluxia Ltd | London | 2014 |
| Affly Ltd | Dalkeith | 2026 |
| Afford Your Dreams Limited | London | 2024 |
| Afforda AFF Co., Ltd | Manchester | 2021 |
| Affordable Classics Limited | Harrogate | 2021 |
| Affordable Cloudhost Limited | London | 2023 |
| Affordable Ltd | Oxford | 2025 |
| Affordable Tech & Supplies Ltd | Nottingham | 2025 |
| Affordable Tech Limited | Uxbridge | 2013 |
| Affordable Web Design Ltd | Doncaster | 2025 |
| Affordable Workspace Limited | London | 2018 |
| Affordify.Ai Ltd | London | 2025 |
| Affording IT Limited | High Wycombe | 2005 |
| Affordwise Ltd | Cardiff | 2023 |
| Affpilot Limited | London | 2023 |
| Affpro Group Ltd | London | 2025 |
| Affpro Ltd | London | 2023 |
| Affpro Media Ltd | London | 2025 |
| Afft Engineering Limited | London | 2013 |
| Afft Ltd | Dover | 2026 |
| Afft Solutions Ltd | London | 2025 |
| Afftech Services PVT Ltd | Wokingham | 2025 |
| Affwebs Limited | Essex | 2024 |
| Affwriting Ltd | London | 2025 |
| Affy Films Ltd | Ipswich | 2018 |
| Affy Medtech UKI Ltd | London | 2026 |
| AFG Consultancy Ltd | London | 2021 |
| AFG Film Ltd | London | 2010 |
| AFG IT Ltd | Leeds | 2026 |
| AFG Partners Ltd | London | 2021 |
| AFG Tech Ltd | London | 2024 |
| Afghan Bristol Community Limited | Bristol | 2022 |
| Afghan Community and Welfare Centre | Walsall | 2007 |
| Afghan Voice CIC | Surbiton | 2012 |
| Afghanskills Group Networking UK Ltd | Edgware | 2025 |
| Afghansmart Limited | Wembley | 2020 |
| Afgp Limited | Harrogate | 2001 |
| AFH Financial Services Limited | Harrow | 2017 |
| AFI Media Ltd | London | 2022 |
| AFI Telecom Limited | Liverpool | 2025 |
| Afibs Tech Ltd | Bolton | 2024 |
| Aficion Ltd | Halifax | 2011 |
| Aficionado Films Ltd. | Glasgow | 2004 |
| Aficionado Ltd | London | 2021 |
| Afif Consulting Ltd | Hitchin | 2026 |
| Afifi Limited | Birmingham | 2024 |
| Afifiana Private Limited | London | 2026 |
| AFILIA8 9JA Connects Limited | Shildon | 2024 |
| Afill Limited | London | 2016 |
| Afillion Ltd | Glasgow | 2018 |
| Afinite Limited | Leeds | 2002 |
| Afiniti 360 Ltd | Bristol | 2025 |
| Afiniti Europe Technologies Limited | Salford | 2013 |
| Afiniti Global Limited | London | 2023 |
| Afinitree Ltd | Bristol | 2024 |
| Afinity Network Solutions Ltd | Bolton | 2018 |
| Afinium Corp Ltd | London | 2009 |
| Afiowor Limited | London | 2025 |
| Afirom Quality Consultancy Limited | Cheshire | 2012 |
| Afis Consultancy Limited | Sevenoaks | 2017 |
| Afisec Ltd | Walsall | 2025 |
| Afisha London Ltd | London | 2023 |
| Afison Services Ltd | Crawley | 2024 |
| Afit Solutions Limited | Edinburgh | 2015 |
| Afiyat Ltd | Ruislip, | 2026 |
| AFJ Solutions Ltd | Dudley | 2008 |
| AFK Industries Ltd | Eastbourne | 2024 |
| AFK Software Ltd | Huddersfield | 2025 |
| AFK Solutions Limited | St Albans | 2009 |
| Afkar Consulting Ltd | Harrow | 2003 |
| Afkar Limited | Harrow | 1988 |
| Afkar Plus Ltd | London | 2020 |
| Afkar Plus Youth | London | 2020 |
| AFL Administrators Limited | London | 2023 |
| AFL Solutions Ltd | Doncaster | 2012 |
| Aflaanta Studio Ltd | London | 2023 |
| Aflac Northern Ireland Ltd | Belfast | 2018 |
| Aflah Tech Limited | Liverpool | 2024 |
| Aflam CIC | London | 2018 |
| Aflex Limited | Sutton | 1997 |
| Aflier Ltd | Minster | 2018 |
| Aflorithmic Labs Ltd | London | 2019 |
| Aflx Projects Ltd | London | 2025 |
| AFM Consulting Limited | London | 2023 |
| AFM Digital Solutions Ltd | Manchester | 2026 |
| AFM Productions Ltd | London | 2019 |
| AFM Software Consultancy Ltd | High Wycombe | 2017 |
| AFM Software Solutions Limited | Wymondham | 1999 |
| AFM Technical Services Limited | Liverpool | 2016 |
| Afmamedia Ltd | London | 2025 |
| Afmd Limited | Stockport | 2009 |
| Afmj Limited | Pocklington | 2026 |
| AFN QA Limited | Poulton-Le-Fylde | 2024 |
| AFN Technologies Limited | Tamworth | 2025 |
| AFN Technology Limited | Wallington | 1999 |
| Afnan Ltd | Bradford | 2026 |
| Afnan Traders Limited | Birmingham | 2024 |
| Afnet International UK Limited | London | 2014 |
| Afobis Consulting Ltd | London | 2021 |
| Afocus Ltd | Potters Bar | 2025 |