| Federicci Ltd | Hospitality | 2012 |
| Feel Good FOX Ltd | Administrative & support | 2019 |
| Feijoa Enterprises Ltd | Wholesale & retail | 2024 |
| Felicette Ltd | Arts & recreation | 2016 |
| Felicity Rose Bridal Ltd | Wholesale & retail | 2024 |
| Felicity Rose Ltd | Wholesale & retail | 2017 |
| Femola Limited | Construction | 2013 |
| Fennerly (UK) Limited | Real estate | 2017 |
| Ferguson Roofing Solutions Ltd | Construction | 2025 |
| Ferjani&Williams Limited | Arts & recreation | 2016 |
| Fern & Green Interiors Limited | Wholesale & retail | 2026 |
| Ferncroft & Co Accountants Ltd | Professional & scientific | 2025 |
| Ferncroft 4 Tax LLP | | 2005 |
| Ferncroft Accountants Limited | Professional & scientific | 2014 |
| Ferncroft Bookkeeping Limited | Professional & scientific | 2001 |
| Ferndale Developments Ltd | Real estate | 2013 |
| Fervore Services Ltd | Construction | 2020 |
| Festman Limited | Health & social care | 2022 |
| Ffrench Exploration Consulting Limited | Mining & quarrying | 2020 |
| Fhbe Ltd | Real estate | 2020 |
| FHR Consulting Limited | Professional & scientific | 2017 |
| Field Group Collective Limited | Professional & scientific | 2025 |
| Field Notes Media Ltd | Professional & scientific | 2025 |
| Fieldinghomes Ltd | Real estate | 2025 |
| Fiendish Designs Limited | Professional & scientific | 2014 |
| Fifo Property Management Limited | Real estate | 1994 |
| Fifteen Change Consulting Limited | Professional & scientific | 2025 |
| Fifty One Point Five North Limited | Professional & scientific | 2025 |
| FIG Street Livery Limited | Agriculture & fishing | 2017 |
| FIG Tree Real Estate Limited | Real estate | 2015 |
| Fig-Mulberry Ltd | Professional & scientific | 2013 |
| Film Art Corporation Limited | Professional & scientific | 1995 |
| Film FX Limited | Extraterritorial | 2015 |
| Films 2 Door Limited | Wholesale & retail | 2006 |
| Filth Hygiene Limited | Wholesale & retail | 2025 |
| FIN Tech Strategic Advisors Limited | Administrative & support | 2018 |
| Financial Services Group Limited | Financial services | 2009 |
| Financial Services Pension Trustees Limited | Financial services | 2025 |
| Financial Software (UK) Limited | Information & communication | 1996 |
| Fincello Finance Limited | Professional & scientific | 2007 |
| Fine and Wild Limited | Administrative & support | 2015 |
| Fine Treatment Limited | Manufacturing | 2014 |
| Fingerbone Ltd | Manufacturing | 2018 |
| Finnovators International Ltd | Administrative & support | 2023 |
| Fintech Digital Limited | Information & communication | 2020 |
| Fintech Global Consulting Ltd | Administrative & support | 2023 |
| Fiona Dolton Consulting Ltd. | Professional & scientific | 2016 |
| Fionavalarie Care Limited | Health & social care | 2022 |
| Fionn Limited | Real estate | 1998 |
| FIR Tree Farm Kent Ltd | Agriculture & fishing | 2024 |
| Fire Protection Services (UK) Limited | Administrative & support | 2005 |
| Firefly Homes Kent Limited | Real estate | 2014 |
| Fireplace Retail Ltd | Construction | 2009 |
| Firescape Risk Advisory Ltd | Public administration | 2023 |
| Firestorm Studio Ltd | Information & communication | 2025 |
| Firm Foundations Limited | Construction | 1990 |
| First Defence Systems Ltd | Other services | 2016 |
| First for Clearance Limited | Construction | 2016 |
| First Housing Property Ltd | Financial services | 2024 |
| First Stage Sevenoaks Ltd | Extraterritorial | 2024 |
| First Standard Group Limited | Professional & scientific | 2008 |
| Firstline Contractors Ltd | Construction | 2021 |
| Fishingline Limited | Financial services | 1993 |
| Fisical Mind and Body Ltd. | Manufacturing | 2017 |
| Fisk & Dailly Limited | Wholesale & retail | 2005 |
| Fitwithzain Ltd | Wholesale & retail | 2025 |
| Fitzpatrick Advisory Limited | Manufacturing | 2015 |
| Fitzroy PVT Ltd | Professional & scientific | 2015 |
| Five Flats Limited | Households | 1997 |
| Fixing US Ltd. | Information & communication | 2014 |
| Flameret Industries Ltd | Wholesale & retail | 2009 |
| Flameshield Products Limited | Professional & scientific | 2002 |
| Flanstead Limited | Real estate | 2008 |
| Flare Electrical & Solar Contractors Ltd | Construction | 2022 |
| Flare Electrical Contractors Ltd | Construction | 2017 |
| Flat White Holdings Ltd | Financial services | 2023 |
| Flatcourt Limited | Households | 1997 |
| Fleet Fuels Ltd | Wholesale & retail | 2026 |
| Fleet Plumbing Ltd | Construction | 2013 |
| Fletcher Ecology and Landscapes Ltd | Professional & scientific | 2025 |
| FLI Hire Limited | Administrative & support | 2019 |
| Flintac Properties Limited | Real estate | 1961 |
| Flip and Turn Swim School Limited | Education | 2013 |
| Flisher Construction Limited | Administrative & support | 2009 |
| Flock Creative Limited | Arts & recreation | 2014 |
| Flooring Trade Supplies Redhill Ltd | Wholesale & retail | 2015 |
| Florence Rail Ltd | Construction | 2019 |
| Flossie and JEY Limited | Hospitality | 2019 |
| Flour & Grace Ltd | Wholesale & retail | 2025 |
| Flourish & Thrive Limited | Health & social care | 2023 |
| Flowline Limited | Extraterritorial | 2025 |
| Flush Brickwork & Scaffolding Limited | Construction | 2016 |
| Flypress Ltd | Information & communication | 2026 |
| FMS Sevenoaks LLP | | 2006 |
| FMS South Park Ltd | Financial services | 1999 |
| Fnpgrow Limited | Professional & scientific | 2023 |
| FOK Enterprise Limited | Real estate | 2000 |
| Fondness Limited | Professional & scientific | 2018 |
| Fonthill Enterprises Limited | Administrative & support | 1996 |
| Foodmate Sales Limited | Manufacturing | 2019 |