| Family Amusements Limited | Felixstowe | 1981 |
| Family and Community Historical Research Society Limited | Ashtead | 2000 |
| Family Arts Campaign Ltd | Stockton On Tees | 2022 |
| Family Center the Aetherium Ltd | London | 2026 |
| Family Events | London | 2013 |
| Family First Leisure Limited | Stockport | 2019 |
| Family Fitness and Food Community Interest Company | South Shields | 2023 |
| Family FUN Time Limited | Sheffield | 2016 |
| Family FUN Zone (Sutton) Limited | Birmingham | 2022 |
| Family Golf & Leisure Limited | Perth | 2001 |
| Family Golf Centres Limited | Bristol | 1990 |
| Family Guys Competition Limited | Crowborough | 2024 |
| Family Hive CIC | Liverpool | 2013 |
| Family Inclusive Training Ltd | Bolton | 2019 |
| Family Inns Limited | Maidstone | 2009 |
| Family Karate Limited | London | 2006 |
| Family Leisure Euston Limited | London | 2002 |
| Family Leisure Gerrard Limited | London | 2002 |
| Family Leisure Holdings Limited | London | 1998 |
| Family Leisure Limited | Whitley Bay | 2018 |
| Family Leisure Victoria Limited | London | 2002 |
| Family Martial Arts Centres Ltd | Wigan | 2007 |
| Family Martial Arts Franchising Limited | Swindon | 2012 |
| Family Play Center Ltd | Nottingham | 2024 |
| Family Prize POT Limited | Bexhill On Sea | 2025 |
| Family Sunday Ltd | London | 2019 |
| Family Tarrant Ltd | Ashford | 2024 |
| Family Tatoo Ltd | Romford | 2023 |
| Family Tickets Ltd | Stockton On Tees | 2017 |
| Family Tree Records Limited | Sheffield | 2014 |
| Family WIN Zone Ltd | Newcastle | 2025 |
| FAMILY360 Limited | Ellesmere Port | 2018 |
| Familydarts Ltd | Newport | 2023 |
| Familyfitness Ltd | Daventry | 2025 |
| Familyplay Ltd | Norwich | 2023 |
| Famous Friends Management Ltd | London | 2017 |
| Famous Games Limited | London | 1987 |
| Famous N Dangerous Ltd | Romford | 2023 |
| Famous Pictures and Features Limited | Milton Keynes | 1997 |
| Famous Studios Limited | Leamington Spa | 2016 |
| Famous Trains Ltd | Derby | 2012 |
| FAN Club House Band Ltd | Milton Keynes | 2022 |
| FAN Fitness Ltd | Hull | 2023 |
| FAN Force Ltd | Birchington | 2023 |
| FAN Interactive Ltd | London | 2024 |
| FAN Parks London Ltd | Tunbridge Wells | 2025 |
| FAN Parks UK Group Ltd | Liverpool | 2022 |
| Fanakapan Limited | Shoreham-By-Sea | 2021 |
| Fanaticc Ltd | Liverpool | 2024 |
| Fanatics Betting & Gaming UK Limited | London | 2021 |
| Fanatix Gyms (UK) Ltd | Halifax | 2011 |
| Fanatix Inc Limited | Abingdon | 2019 |
| Fanchen UK Ltd | Kington | 2025 |
| Fancolours Ltd | London | 2026 |
| Fancy and Chooch Ltd | Nottingham | 2021 |
| Fancy Bubbles Hot TUB Hire Ltd | Leeds | 2017 |
| Fancy Creations Ltd | Boston | 2023 |
| Fancy Entertainment and Events Ltd | Alfreton | 2025 |
| Fancy Feats Limited | Hemel Hempstead | 2022 |
| Fancy Pants Limited | Stockton-On-Tees | 2013 |
| Fandango Theatrical Limited | London | 2019 |
| Fandangos Productions Ltd | Swindon | 2018 |
| Fane Productions Limited | London | 2017 |
| Fane Speakers Ltd | London | 2023 |
| Fanfare Music Consultants Ltd | Gloucester | 2018 |
| Fanfest Events Limited | London | 2018 |
| Fangdoodle Limited | London | 2004 |
| Fangfoss and Bolton Jubilee Park Company | York | 2005 |
| Fangs FX Limited | Marlow | 2001 |
| Fanny and Rory Ltd | London | 2019 |
| Fanny Cheesedale Limited | London | 2022 |
| Fanny Fielding Art Ltd | Cleethorpes | 2024 |
| Fanny Hatstand Community Interest Company | Langport | 2014 |
| Fanny Rush Ltd | London | 2011 |
| Fanny Sharp Limited | Margate | 2022 |
| Fans Museum CIC | Sunderland | 2016 |
| Fansalways Ltd | London | 2026 |
| Fansee Limited | London | 2026 |
| Fanshaw Productions Limited | Bishop'S Stortford | 2004 |
| Fanstone Fitness Ltd | Wallingford | 2011 |
| Fantail Spirits Ltd | Edinburgh | 2026 |
| Fantapattern Ltd | London | 2025 |
| Fantasia Dance Ltd | Colne | 2005 |
| Fantasia Group Limited | Gateshead | 2024 |
| Fantasia MOP Company Limited | Bbedford | 1991 |
| Fantasia Productions Ltd | Gateshead | 2019 |
| Fantasia Toys & Games Limited | Southend-On-Sea | 2019 |
| Fantastic Fireworks Limited | Luton | 1985 |
| Fantastic Partners Limited | Cambridge | 2012 |
| Fantastic Purpose Ltd | Bristol | 2024 |
| Fantastic Roads Ltd | Leeds | 2011 |
| Fantastic Woman Limited | London | 2010 |
| Fantastico Limited | Kent | 2001 |
| Fantasy Boss Ltd | London | 2025 |
| Fantasy Club Cricket Limited | Haywards Heath | 2015 |
| Fantasy Dreams Ltd | Solihull | 2026 |
| Fantasy Fighting Ltd | Leatherhead | 2025 |
| Fantasy Football Clashes Ltd | London | 2025 |
| Fantasy Footy League Ltd | Bromley | 2025 |
| Fantasy Gymnastics Academy Limited | Birmingham | 2026 |