| FAN Manufacturers Limited | Huddersfield | 2003 |
| Fan-Sea Ltd | Leicester | 2023 |
| Fanatix Limited | London | 2011 |
| Fanboy Films Ltd | Cobham | 2010 |
| Fancurrent Ltd | London | 2025 |
| Fancy Co., Ltd. | Beckenham | 2022 |
| Fancy Dress News Limited | Aylesbury | 2013 |
| Fancy Sailing Ltd | London | 2023 |
| Fancy Shape Diamonds Ltd | Brighton | 2014 |
| Fand Music Press Limited | Petersfield | 1998 |
| Fandabidozi Ltd | Doncaster | 2025 |
| Fang Holding Ltd | London | 2022 |
| Fangshan Global Co., Ltd | London | 2017 |
| Fanira Ltd | London | 2021 |
| Fanlyfans Limited | London | 2022 |
| Fanmedia Limited | Milton Keynes | 2006 |
| Fans & Spares Ltd | Birmingham | 2010 |
| Fanscape Group Limited | London | 2025 |
| Fanshawe Crescent 1958 Limited | Dagenham | 2014 |
| Fanshawe Trustee Limited | London | 2024 |
| Fansr SWE Limited | London | 2024 |
| Fant Properties Eastbourne Limited | Maidstone | 2018 |
| Fantagoat Investors Ltd | London | 2026 |
| Fantas-Tak (Retail) Ltd. | Eccleshill | 2002 |
| Fantastic Academic Science 2 Ltd | Redhill | 2023 |
| Fantastic Films Ltd | Harrow | 2017 |
| Fantastic Handyman Ltd | London | 2014 |
| Fantastic Pet Care Ltd | North Harrow | 2014 |
| Fantastic Removals Ltd | North Harrow | 2017 |
| Fantastic Snacks Ltd | Hemel Hempstead | 2012 |
| Fantastic-Ecom Ltd | Mildenhall | 2022 |
| Fantasticservices.Com Ltd | London | 2014 |
| Fantasy Darts Limited | Diss | 2020 |
| Fantasy Dolls Invest Limited | London | 2025 |
| Fantasy Dolls Limited | London | 2025 |
| Fantasy Fibres Limited | Bradford | 2008 |
| Fantec Industrial Co., Ltd | London | 2016 |
| Fantech (UK) Limited | Kingswinford | 1996 |
| Fantex Limited | Wolverhampton | 2009 |
| Fanthorpes Custom Install Limited | Hull | 2007 |
| Fantome' LE' Jistix Ltd | Edinburgh | 2025 |
| Fanuel Transport Araya Limited | London | 2022 |
| Fanya Holding (Norway) Limited | Beckenham | 2025 |
| Fanzytek Limited | Beckenham | 2023 |
| FAO Recruitment Limited | Sheffield | 2014 |
| FAR East Cargo Line Limited | Southall | 1972 |
| FAR East Mini Mart Ltd | London | 2020 |
| FAR East Ocean (UK) Ltd | Manchester | 2016 |
| FAR East Steel Imp&Exp Co., Ltd | Kenilworth | 2019 |
| FAR HEY Close 1969 Limited | Coventry | 2014 |
| FAR Niente Ltd | Kings Langley | 2014 |
| FAR OUT Enterprises Ltd | Harrow | 2013 |
| FAR Pavilion Tents Ltd | Newbury | 2014 |
| FAR Resourcing Limited | London | 2010 |
| FAR Tortuga Limited | London | 2008 |
| FAR West Travel Limited | Tenby | 1987 |
| FAR Westhorpe Farms Limited | Barnsley | 2022 |
| Faraday Road 1965 Limited | Rugby | 2014 |
| Farady Electric Group (UK) Co., Ltd | London | 2016 |
| Farahs Essentials Limited | London | 2022 |
| Farai Associates Ltd | Leeds | 2014 |
| Faraway Management Ltd | Edinburgh | 2012 |
| Farba 46 Ltd | Glasgow | 2017 |
| Farbenderseele Ltd | London | 2022 |
| Farbridge International Co., Ltd | Kington | 2020 |
| Farchannel 2 Limited | Salford | 2016 |
| Farchannel Ltd | Salford | 2013 |
| Farda Ltd | London | 2016 |
| Fareast Electronics Co. Limited | London | 2023 |
| Farebrother Funeral Services Limited | Sutton Coldfield | 1973 |
| Faredeal Limited | Yorkshire | 1997 |
| Fareham Plant Hire Limited | Southampton | 2012 |
| Fareholme Limited | Leeds | 1945 |
| Farenci Ltd | Broadstone | 2024 |
| Farfield House Limited | Halifax | 2022 |
| Farhill Developments Limited | Mahon Road | 2003 |
| Faria Grocers Ltd | Dunfermline | 2023 |
| Farid Import and Export Limited | London | 2015 |
| Fariha Marine Ltd | London | 2022 |
| Fariq Systems Ltd | Loughborough | 2012 |
| Faris Legal Limited | Leicester | 2022 |
| Farismere Properties Limited | Sutton Coldfield | 1972 |
| Farleigh Combe Manor Residential Home Limited | Weston-Super-Mare | 1984 |
| Farley Court 1998 Limited | London | 1999 |
| Farley Reach Residents Limited | St. Austell | 2018 |
| Farley Road Property Limited | London | 2005 |
| Farlin Overseas Ltd. | London | 2016 |
| Farm Africa Intellectual Property Limited | London | 2010 |
| Farm and General Services Limited | Ashford | 2005 |
| Farm and General Supplies Limited | Romsey | 2015 |
| Farm and Pet Limited | Market Drayton | 2014 |
| Farm Assist Ltd | Tiverton | 2022 |
| Farm Carbon Ltd | Newton Stewart | 2021 |
| Farm Cottage Brands Limited | Chippenham | 2018 |
| Farm Cottage Tiling Limited | Dorchester | 2017 |
| Farm Expo Limited | Maidstone | 2019 |
| Farm Fresh Produce Ltd | Eastleigh | 2013 |
| Farm Investments Limited | Hitchin | 2008 |
| Farm Road 1952 Limited | Chichester | 2014 |
| Farm Street Nominees Limited | Southend-On-Sea | 2004 |