| FIG One Solutions Ltd | Nottingham | 2014 |
| FIG Tree International Ltd | London | 2019 |
| Fight by Design Ltd | London | 2025 |
| Fight for Peace International | London | 2010 |
| Fight for Your Child | London | 2025 |
| Fight for Your Future CIC | London | 2024 |
| Fight IT OUT Ltd | Loughton | 2023 |
| Fight LAB Boxing Ltd | London | 2026 |
| Fight Media Ltd | Crawley | 2019 |
| Fight Shack Limited | Basingstoke | 2016 |
| Fight Sports Scholarship Programme CIC | Bromsgrove | 2022 |
| Fight Station Limited | Burton-On-Trent | 2023 |
| Fight Worx Academy Limited | Newton Abbot | 2009 |
| Fightback Promotions Limited | Derby | 2023 |
| Fightcamp Events Ltd | Farnham | 2023 |
| Fighter Blueprint Online Limited | Warrington | 2024 |
| Fighters United Global Academy Ltd | Belvedere | 2024 |
| Fightersphysique Ltd | Sheffield | 2025 |
| Fighting Chance Communities CIC | Didsbury | 2019 |
| Fighting Combat Fitness Ltd | London | 2023 |
| Fighting Fitness Judo Education Ltd | Datchet | 2025 |
| Fighting for Safer Foundations Project CIC | Feltham | 2026 |
| Fighting Together Limited | Bootle | 2025 |
| Fighting Words Northern Ireland | Belfast | 2016 |
| Figment Creative Expression Ltd. | Stirling | 2011 |
| Figoura Ltd | Knebworth | 2014 |
| Figtree Learning Limited | London | 2016 |
| Figure of Eight Education C.I.C. | Westcliff-On-Sea | 2012 |
| Figure This Limited | Belfast | 2024 |
| Fiit for Life Education Limited | Derby | 2020 |
| Fiitwithmeg Limited | Newport | 2025 |
| Fika Global Ltd | London | 2025 |
| Fika Welie Caribbean and African Mental Health Unit C.I.C. | Stockport | 2020 |
| Fikra Academy Ltd | London | 2024 |
| FIL Training Ltd | London | 2021 |
| Filament Works CIC | Torquay | 2020 |
| Filbert Splosh Limited | Taunton | 2002 |
| Filbrit International Academy UK Ltd | Penarth | 2020 |
| Filbrit Training Centre Ltd. | Penarth | 2018 |
| Filer Online & Sales Ltd | Bristol | 2023 |
| Filey Childcare Ltd | Filey | 2005 |
| Filip Driving Ltd | Northampton | 2024 |
| Filipino Academy Professional Specialization Limited | Ilford | 2019 |
| Fill the GAP Education Limited | London | 2023 |
| Fill the GAP Learning Limited | Dunfermline | 2018 |
| Fillerworld Global Training Academy Ltd | West Bromwich | 2026 |
| Fillongley Pre-School & Nursery Ltd | Nr Coventry | 2012 |
| Film Club (UK) | London | 2006 |
| Film Design International Limited | Stanmore | 2001 |
| Film Education Limited | Canterbury | 2017 |
| Film Factory School of Film & Television Ltd | London | 2023 |
| Film in Language Teaching Association | Manchester | 2011 |
| Film Nation UK | London | 2012 |
| Film School United Kingdom Ltd | Church Stretton | 2022 |
| Film Sound Academy Ltd | London | 2019 |
| Filtered Technologies Limited | London | 2009 |
| Fimba GB Masters CIC | Copthorne Village | 2025 |
| FIN Divers Limited | Hertford | 2010 |
| Finabee Ltd | Tonbridge | 2024 |
| Finable Limited | Bagshot | 2019 |
| Final Checks Academy CIC | Dagenham | 2024 |
| Final Driving School Ltd | Northampton | 2024 |
| Final EE Focused Intensives Ltd | Gillingham | 2020 |
| Final Finish Foundation CIC | Thornton Heath | 2025 |
| Final Form Coaching Ltd | Cheltenham | 2024 |
| Final Goal Driving School Ltd | Thornton Heath | 2025 |
| Final Key Ltd | Penarth | 2019 |
| Final Third Football Ltd | Chorley | 2023 |
| Finale Music School Limited | Sheffield | 2023 |
| Finalmed Ltd | London | 2024 |
| Finalside Systems Limited | 265 Kingston Road | 1991 |
| Finanace Capital Learning Ltd | London | 2026 |
| Financa Limited | Solihull | 2021 |
| Finance & Business Academy Limited | London | 2014 |
| Finance & Business Training Limited | London | 2007 |
| Finance 4 Kids Ltd | Wolverhampton | 2017 |
| Finance and Accounting Tuition Ltd | Grays | 2022 |
| Finance Business Partner Academy Limited | London | 2021 |
| Finance Fixtory Ltd | Barking | 2024 |
| Finance MAP Ltd | London | 2017 |
| Finance Mastery Training Ltd | Edgmond | 2023 |
| Finance PD Ltd | Woking | 2011 |
| Finance Training Academy Limited | London | 2015 |
| Finance Training Excellence Ltd | Edinburgh | 2017 |
| Finance Training Limited | Halifax | 2020 |
| FINANCE4FUTURES CIC | Sheffield | 2026 |
| Financeed Ltd | Newcastle Upon Tyne | 2024 |
| Financemadeclear Ltd | South Croydon | 2024 |
| Financetalking Ltd | Godalming | 2000 |
| Financial Analytics Research Society | St. Neots | 2023 |
| Financial Cents CIC | Kington | 2025 |
| Financial ED Coach Ltd | Horsham | 2026 |
| Financial Education Academy Ltd | Essex | 2024 |
| Financial Education Crew Ltd | Coventry | 2023 |
| Financial Examination Services Limited | Edinburgh | 2015 |
| Financial Fables Ltd | London | 2026 |
| Financial First Aiders Ltd | Ipswich | 2026 |
| Financial Fluency Limited | London | 2009 |
| Financial Freedom HQ Ltd | West Calder | 2025 |
| Financial Futures CIC | Cambridge | 2026 |