| Ftsl Worldwide Ltd | Newport | 2019 |
| FTU Limited | Flint | 2022 |
| FTV Events Ltd | Aberdeen | 2025 |
| FU Management Ltd | London | 2024 |
| FU11 Send Ltd | Gainsborough | 2025 |
| Fubunation Ltd | London | 2019 |
| Fuchsia Moon Ltd | Fitzrovia | 2025 |
| Fuco Design Ltd | Orpington | 2026 |
| Fuddled Limited | Winkleigh | 2026 |
| Fuddy Enterprises Limited | London | 2021 |
| Fudged Enterprises Ltd | Penryn | 2007 |
| Fudog Martial Arts Limited | Glenrothes | 2017 |
| Fudoshin Trading Ltd | Sheffield | 2017 |
| Fudstock CIC | Barrow-In-Furness | 2021 |
| Fuego Films Limited | London | 2018 |
| Fuel & Function Ltd | London | 2026 |
| Fuel Events | Ballymena | 2009 |
| Fuel Fitness Gym Limited | Dorking | 2014 |
| Fuel House Gyms Ltd | Bedford | 2025 |
| Fuel Personal Training Ltd | Hampton | 2018 |
| Fuel Potential Personal Training Academy Limited | Alton | 2018 |
| Fuel Productions Ltd | London | 2012 |
| Fuel Theatre Ltd | London | 2004 |
| Fuel Theatre Services Limited | London | 2004 |
| Fuel Training Limited | Hampton | 2014 |
| Fueled Limited | Altrincham | 2012 |
| Fuerte Fisico Holdings Limited | Bristol | 2026 |
| Fuerte Fisico Limited | Bristol | 2025 |
| Fuerza Sports Ltd | Bridgnorth | 2025 |
| Fuge Productions Ltd | Abingdon | 2026 |
| Fugee Art Ltd | London | 2015 |
| Fugga Dugga Limited | Evesham | 2023 |
| Fugue Ltd | London | 2020 |
| Fulbeck Kart Club Limited | Nottingham | 2018 |
| Fulcher Sports Consultancy Ltd | Brighton | 2021 |
| Fulfil Sports Management Ltd | London | 2025 |
| Fulford (York) Golf Club Limited(The) | | 1914 |
| Fulford Golf Course Limited | York | 1988 |
| Fulford Heath Golf Club Limited | Worcs | 1933 |
| Fulgoni Copyrights Ltd | London | 2002 |
| Fulham and Chelsea Estates (Rentals) Limited | London | 1985 |
| Fulham Boxing Club C.I.C. | London | 2024 |
| Fulham Boxing Gym Ltd | Watford | 2025 |
| Fulham Fitness Solutions Limited | Leeds | 2024 |
| Fulham Football Club Foundation | New Malden | 2002 |
| Fulham Football Club Limited | New Malden | 1987 |
| Fulham Football Leisure Limited | New Malden | 1997 |
| Fulham Kickboxing Academy Limited | London | 2024 |
| Fulham Palace Enterprises Community Interest Company | London | 2011 |
| Fulham Palace Trust | London | 2010 |
| Fulham Reach Boat Club | London | 2014 |
| Fulham Shooting Club Ltd | London | 2022 |
| Fulham Stadium Limited | New Malden | 1997 |
| Fulham Symphony Orchestra Limited | London | 2017 |
| Fulham United FC Ltd | London | 2022 |
| Full Action Sports Limited | Wilmslow | 2017 |
| Full Bloom Music Limited | London | 2023 |
| Full Blown Metals Ltd | Newcastle Upon Tyne | 2013 |
| Full Blown Productions Limited | London | 2004 |
| Full Board Gaming Limited | Newton Abbot | 2022 |
| Full Bottle Boot Camps & Fitness Limited | Bedford | 2015 |
| Full Circle Docklands Ltd | Bristol | 2011 |
| Full Circle Fitness Ltd | Cambridge | 2005 |
| Full Circle Fitness Marlow Ltd | Maidenhead | 2025 |
| Full Circle Fitness Wargrave Ltd | Maidenhead | 2025 |
| Full Circle Performance and Production Limited | London | 2010 |
| Full Circle Performing Arts Ltd | London | 2019 |
| Full Circle Sports Consultancy Limited | London | 2016 |
| Full Circle VRT Limited | Mildenhall | 2024 |
| Full Complete Ltd | London | 2022 |
| Full Contact Contender Limited | Manchester | 2020 |
| Full Court Productions Ltd | Atherstone | 2024 |
| Full Creative Kontrol Limited | London | 2025 |
| Full Cxrcle Band Ltd | London | 2025 |
| Full Event Fundraising Ltd | Herne Bay | 2012 |
| Full Event Production Ltd | Leeds | 2016 |
| Full Force Activity Group Ltd | Maidstone | 2026 |
| Full Force Gym Ltd | Leeds | 2022 |
| Full Force Tours Limited | Abingdon | 2016 |
| Full Force Wrestling Ltd | Redditch | 2026 |
| Full Frequency Limited | Abingdon | 2005 |
| Full Frontal Theatre Ltd | Altrincham | 2024 |
| Full Gaming Management Services Limited | Oldbury | 2013 |
| Full GAS Cycling Limited | Ruislip | 2015 |
| Full GAS Limited | Ruislip | 2023 |
| Full Grown Ltd | Matlock | 2012 |
| Full House Bidco Limited | London | 2013 |
| Full House Bidco NO.2 Limited | London | 2013 |
| Full House Bingo Limited | Surrey | 2005 |
| Full House Limited | Bristol | 2016 |
| Full House Merchandise Ltd | Sutton | 2025 |
| Full House Midco Limited | London | 2013 |
| Full House Topco Limited | London | 2013 |
| Full Immersion Ltd | London | 2020 |
| Full Intensity Limited | Gravesend | 2015 |
| Full Joy Ltd | London | 2024 |
| Full Life Fitness Limited | Dursley | 2014 |
| Full Life Pilates Ltd | Rayleigh | 2018 |
| Full Metal Jacket Ranges Ltd | Cardiff | 2018 |
| Full Monty Nights Limited | Southampton | 2012 |