| Firecrown Foods Ltd | Hospitality | 2019 |
| Firgrove Homes (Esher) Limited | Construction | 2023 |
| Firgrove Homes (Thames Ditton) Ltd | Construction | 2020 |
| Firgrove Homes (Weybridge) Limited | Construction | 2025 |
| Firgrove Homes Limited | Construction | 2011 |
| Firgrove Properties Limited | Real estate | 2025 |
| First Point Advice Ltd | Other services | 2023 |
| First Professional Services Limited | Professional & scientific | 1991 |
| Firstline Recovery and Transportation Ltd | Wholesale & retail | 2024 |
| Firstline Security Ltd | Administrative & support | 2014 |
| Firstlines Investments Ltd | Real estate | 2021 |
| Fit for a King Limited | Wholesale & retail | 2023 |
| Fitzwilliam Holdings Ltd | Real estate | 2015 |
| Five Designs Limited | Information & communication | 2009 |
| Fizzy Phoenix Ltd | Hospitality | 2023 |
| FJM Entertainment Group Ltd | Professional & scientific | 2023 |
| Flair Leisure Products PLC | Manufacturing | 1999 |
| Flairlight Designs Ltd | Wholesale & retail | 2005 |
| Flame Grill Limited | Hospitality | 2003 |
| Flaming Silver Solutions Limited | Information & communication | 2016 |
| Flat 1-4 Charlotte Court Management Ltd | Households | 2017 |
| Flats & General Management Limited | Real estate | 1990 |
| Fleming House RTM Company Limited | Households | 2008 |
| Fletcher Bassi Architecture Ltd | Professional & scientific | 2024 |
| Flexibon Films Limited | Professional & scientific | 2015 |
| Flexibon Investments Limited | Professional & scientific | 2016 |
| Flexibon Limited | Financial services | 2009 |
| Flexifleet Limited | Professional & scientific | 2000 |
| Flexnet Consultants Limited | Information & communication | 1998 |
| Flintwall Partners Limited | Administrative & support | 2015 |
| Floor Sanding and Polishing Ltd | Construction | 2021 |
| Floral Court Residents' Association Limited | Real estate | 2001 |
| Florence Court Management (Caterham) RTM Company Limited | Households | 2009 |
| Florence Evans Fine Art Ltd | Wholesale & retail | 2022 |
| Florescu Software Engineering Limited | Information & communication | 2025 |
| Flow Healthcare. Ltd | Health & social care | 2016 |
| Flow the Plumbing Co. Ltd | Construction | 2013 |
| Flowbox Ltd | Wholesale & retail | 2025 |
| Flowerwise Limited | Wholesale & retail | 2014 |
| Flurdlis Ltd | Hospitality | 2025 |
| Flux Pictures LLP | | 2009 |
| Flux Trimmers Limited | Manufacturing | 2001 |
| Flying Kitten Limited | Arts & recreation | 2016 |
| Flynn Johnson Estates Limited | Real estate | 2016 |
| Flèche & Sons Limited | Administrative & support | 2026 |
| FM Concert Broadcasts Ltd | Information & communication | 2015 |
| Fnaf Limited | Information & communication | 2024 |
| Focus Bounce Ltd | Professional & scientific | 2018 |
| Foggy London Ltd | Construction | 2019 |
| FOH Team Ltd | Administrative & support | 2024 |
| FOM Solutions Limited | Information & communication | 2014 |
| Food & Drink Store Limited | Wholesale & retail | 2012 |
| Foong Property Investments Limited | Real estate | 2025 |
| Football Web Pages Limited | Information & communication | 2013 |
| Footie Tots Limited | Extraterritorial | 2001 |
| Footie Winning Ways Ltd | Arts & recreation | 2001 |
| FOR Eyes Services Limited | Manufacturing | 2015 |
| FOR the LAG of GOD Ltd | Information & communication | 2021 |
| Forctis Ltd | Wholesale & retail | 2018 |
| Forecourt & Retail Ltd | Wholesale & retail | 2024 |
| Forefront Limited | Information & communication | 2021 |
| Forelle Management Services Ltd | Real estate | 2018 |
| Foresight Developments LLP | | 2008 |
| Foret Limited | Professional & scientific | 1992 |
| Forever Active Wellbeing Limited | Other services | 2025 |
| Forge & Foundry Group Limited | Manufacturing | 2020 |
| Forge Steel Apparel Ltd | Wholesale & retail | 2024 |
| Formatt Creative Services Limited | Professional & scientific | 2022 |
| Formia Interiors Ltd | Construction | 2026 |
| Forpro Group Holdings Limited | Financial services | 2026 |
| Forte Motos Ltd | Wholesale & retail | 2021 |
| Forte Solutions Asia Limited | Administrative & support | 2014 |
| Fortex Electrical Ltd | Construction | 2026 |
| Fortune Cookie Chinese Takeaway Ltd | Hospitality | 2012 |
| Fortune Cookies Takeaway Ltd | Hospitality | 2023 |
| Forty Trading Limited | Real estate | 2021 |
| Fotoartist Limited | Information & communication | 2019 |
| Found Executive Ltd | Administrative & support | 2010 |
| Foundations Independent Estate Agents Limited | Real estate | 2005 |
| Foundations Independent Letting Agents Limited | Real estate | 2009 |
| Fountain Gardens Limited | Financial services | 2011 |
| Fountain House Leatherhead Management Ltd | Real estate | 2022 |
| Four Points Consulting Limited | Professional & scientific | 2007 |
| Four Points Investment Limited | Real estate | 2017 |
| Four Seasons Financial Planning Limited | Administrative & support | 2005 |
| Fowler Clark Limited | Professional & scientific | 2020 |
| FOX Freight Ltd | Transport & logistics | 2021 |
| FOX Wealth Management Limited | Financial services | 2007 |
| Foxcote Fire Systems Limited | Public administration | 2009 |
| FPS Arborist Limited | Agriculture & fishing | 2017 |
| Fracht-Cargo Ltd. | Transport & logistics | 2012 |
| Frake Remedial Limited | Construction | 2016 |
| Frances Laing Consulting Limited | Professional & scientific | 2006 |
| Franks Drying & Building Contractors Limited | Construction | 2020 |
| Freddy the Foodie Limited | Hospitality | 2026 |
| Free My Kite Ltd | Information & communication | 2019 |
| Free Quotes Roofing Ltd | Construction | 2025 |
| Free to Roam Ltd | Other services | 2011 |
| Freeborough Carpentry Limited | Manufacturing | 2015 |
| Freedman Alexander LLP | | 2011 |