| Exmoor Properties GP Limited | Financial services | 2020 |
| Exotic Retreats Limited | Administrative & support | 2002 |
| Exoticca Travel UK Limited | Administrative & support | 2016 |
| Expert Opinion Ltd | Information & communication | 2020 |
| Express Transport Movements Limited | Transport & logistics | 1997 |
| Extreme Productions Limited | Information & communication | 2000 |
| EYE Expert Optometric Services Limited | Health & social care | 2007 |
| EYE Vista Limited | Wholesale & retail | 2004 |
| Eyewear Direct Limited | Manufacturing | 2002 |
| Ezclimates Ltd | Professional & scientific | 2005 |
| EZK Concepts Limited | Administrative & support | 2007 |
| F & B Builders London Limited | Construction | 2008 |
| F & M Cressi Limited | Wholesale & retail | 1995 |
| F I M (UK) Limited | Real estate | 2002 |
| F R Investments Limited | Real estate | 2000 |
| F. Copson (Halstead) Limited | Real estate | 2005 |
| F. Copson (Ipswich) Limited | Real estate | 2006 |
| F. Kohanim Limited | Wholesale & retail | 1966 |
| F.Hinds Limited | Wholesale & retail | 1918 |
| F.T.Doble(Heatrite)Limited | Wholesale & retail | 1964 |
| Fabrico Designs Limited | Wholesale & retail | 2007 |
| Face to Face Make-Up Artistry Limited | Arts & recreation | 1994 |
| Face to Face Training (London) Ltd | Education | 2026 |
| Facq Limited | Administrative & support | 2007 |
| Fafan Limited | Administrative & support | 2004 |
| Fair Dinkum Developers Properties Limited | Information & communication | 2007 |
| Faircrest Builders Ltd | Construction | 2025 |
| Fairmont Law Solicitors Ltd | Professional & scientific | 2023 |
| Fairprint Limited | Manufacturing | 1965 |
| Fairview Estates (Housing) Limited | Construction | 1963 |
| Fairview Holdings Limited | Financial services | 2000 |
| Fairview Land Limited | Construction | 1996 |
| Fairview Limited | Construction | 1999 |
| Fairview New Homes (Beeston) Limited | Extraterritorial | 1996 |
| Fairview New Homes (Chase Road) Limited | Construction | 1997 |
| Fairview New Homes (Chequers Way) Limited | Construction | 1996 |
| Fairview New Homes (Colindale) Limited | Construction | 1999 |
| Fairview New Homes (Developments) Limited | Construction | 1999 |
| Fairview New Homes (Hindhead) Limited | Extraterritorial | 1999 |
| Fairview New Homes (Hoddesdon) Limited | Extraterritorial | 1998 |
| Fairview New Homes (Kingsley) Limited | Extraterritorial | 1999 |
| Fairview New Homes (Northgate) Limited | Extraterritorial | 1998 |
| Fairview New Homes (Properties) Limited | Construction | 2002 |
| Fairview New Homes (Puckeridge) Limited | Construction | 1961 |
| Fairview New Homes (Queensbury) Limited | Real estate | 2017 |
| Fairview New Homes (South East) Limited | Construction | 1997 |
| Fairview New Homes (Watford) Limited | Real estate | 2018 |
| Fairview New Homes (Willow Way) Limited | Construction | 2000 |
| Fairview New Homes Limited | Financial services | 2000 |
| Fairview Realty Limited | Extraterritorial | 1998 |
| Fairview Ventures Crawley NO. 1 Limited | Construction | 2005 |
| Fairview Ventures Crawley NO. 2 Limited | Construction | 2005 |
| Fairview Ventures Crawley NO. 3 Limited | Construction | 2005 |
| Fairview Ventures Crawley NO. 4 Limited | Construction | 2005 |
| Fairview Ventures Limited | Construction | 2001 |
| Famecroft Limited | Real estate | 2018 |
| Family HOUSE168 Ltd | Hospitality | 2023 |
| FAMILYF1ST Daycare Ltd | Health & social care | 2024 |
| Faril Limited | Professional & scientific | 2007 |
| Farm Road Residents (Northwood) Limited | Households | 1988 |
| Farnham Care Services Limited | Health & social care | 2022 |
| Fashion Link Limited | Wholesale & retail | 1995 |
| Fashion Movements International Limited | | 1980 |
| Fashion Show Photos Limited | | 2000 |
| Fast Online Marketing Experts Ltd | Administrative & support | 2013 |
| Fastway Food Corner Ltd | Hospitality | 2021 |
| Fatma Yilmaz Ltd | Administrative & support | 2021 |
| Faulcon Delacy Limited | Professional & scientific | 1999 |
| Faydeal Limited | Real estate | 1992 |
| Femosol Limited | Information & communication | 2007 |
| Ferrymais Limited | Real estate | 1985 |
| FGF Building Ltd | Construction | 2015 |
| FGN Solutions Ltd | Construction | 2023 |
| Fiberlogix International Limited | Manufacturing | 2006 |
| Fidele Media Limited | Information & communication | 2018 |
| Fidler Associates Ltd | Other services | 2007 |
| Fieldgate Property Company Limited | Real estate | 1987 |
| Fieldwick Kemsley & Partners Limited | Professional & scientific | 1997 |
| Fierlo Limited | Administrative & support | 2019 |
| Fillink Limited | Information & communication | 2003 |
| Film & Photographic Ltd | Arts & recreation | 2006 |
| FIN2002 Limited | Administrative & support | 2002 |
| Finaltouch Print Finishing Limited | Wholesale & retail | 2006 |
| Finance Source Limited | Financial services | 2023 |
| Financial Connections Limited | Financial services | 2003 |
| Financial Connections Wealth Management Limited | Financial services | 2005 |
| Financial.E Ltd | Professional & scientific | 2000 |
| Find Adtech Ltd | Information & communication | 2026 |
| Fine Web Limited | Real estate | 2000 |
| Fineplace Limited | Real estate | 1991 |
| Finer Packaging Limited | Manufacturing | 2005 |
| Finest Care Limited | Health & social care | 2003 |
| Finlytics Ltd | Information & communication | 2006 |
| Finnesse Management Limited | Financial services | 1999 |
| Finsbury Park Property Limited | Real estate | 2007 |
| Fiona White Limited | Professional & scientific | 2006 |
| Firetail Limited | Professional & scientific | 2005 |
| Firm Foundations (EA) Limited | Education | 2005 |
| Firmenich Holdings (UK) Limited | Manufacturing | 1928 |
| Firmenich Wellingborough (UK) Limited | Manufacturing | 1934 |