| Foodswift Limited | Hospitality | 2018 |
| Footprint Innovations Limited | Professional & scientific | 2002 |
| FOR Everyday Life Limited | Professional & scientific | 2023 |
| Fordwich Investments Ltd | Real estate | 2022 |
| Forecast Features Limited | Information & communication | 2012 |
| Foreman Bros Limited | Wholesale & retail | 1968 |
| Foreman Bros Renovations Ltd | Construction | 2026 |
| Foreman Bros. Properties Limited | Construction | 1976 |
| Forensicus Limited | Professional & scientific | 2008 |
| Forerunner Limited | Information & communication | 2009 |
| Forest Kindergarten Ltd | Other services | 2015 |
| Forest Roofing Ltd | Construction | 2020 |
| Forge Cottages Management Company Limited | Households | 2021 |
| Forge Garage (Seal) Limited | Real estate | 2002 |
| Forge Garage Otford Limited | Wholesale & retail | 2019 |
| Forge Project Solutions Ltd | Professional & scientific | 2025 |
| Forge View Ltd | Administrative & support | 2014 |
| Forgoodprint Ltd | Administrative & support | 2020 |
| Form Analytics Limited | Administrative & support | 2024 |
| Form Sevenoaks Limited | Arts & recreation | 2019 |
| Formidium UK Ltd | Information & communication | 2025 |
| Formtex Ltd | Construction | 2026 |
| Formula Time Systems Ltd | Information & communication | 2007 |
| Fortitude Property Limited | Real estate | 2025 |
| Fortitude Taekwondo Caterham Ltd | Education | 2020 |
| Fortitude Taekwondo Wrotham Limited | Education | 2019 |
| Fortside Investments Limited | Real estate | 2002 |
| Fortside Limited | Real estate | 2002 |
| Forward Worldwide Limited | Professional & scientific | 2023 |
| Fosse Lodge Management Company Limited | Households | 2006 |
| Fotsn Limited | Arts & recreation | 2014 |
| FOUNDUB4 Ltd | Information & communication | 2010 |
| Four Elms Catering Limited | Hospitality | 2014 |
| Four Seasons Property Finance Limited | Financial services | 2017 |
| Fourfrys Limited | Professional & scientific | 2006 |
| Fourways Engineering Limited | Wholesale & retail | 2019 |
| Fourwinds Capital Partners Limited | Financial services | 2026 |
| FOX Assets Ltd | Real estate | 2022 |
| FOX House Preschool and Nursery Ltd | Education | 2006 |
| FOX Investigation Services Limited | Administrative & support | 2001 |
| FOX Linton Limited | Wholesale & retail | 2003 |
| Foxberry Accounting LLP | | 2009 |
| Foxberry Consulting Limited | Professional & scientific | 2005 |
| Foxbury Residents Management Company Limited | Households | 1997 |
| Foxdowne Limited | Real estate | 2005 |
| Foxglove Capital Ltd | Construction | 2024 |
| Foxglove Finance Limited | Financial services | 2020 |
| Framfield (2000) Limited | Extraterritorial | 2022 |
| France-Angleterre Limited | Administrative & support | 1989 |
| Franchiseos Ltd | Administrative & support | 2022 |
| Francis Biopharma Limited | Professional & scientific | 2010 |
| Francis Bros Ltd | Professional & scientific | 2021 |
| Francis Jones Sevenoaks Limited | Wholesale & retail | 2021 |
| Frank's Barbers Riverhead Ltd | Other services | 2024 |
| Frant Hair Studio Limited | Other services | 2013 |
| Fraser and Day Building and Maintenance Limited | Construction | 2019 |
| Freday Ltd | Construction | 2026 |
| Free Power for Schools 2 LP | | 2011 |
| Free Power for Schools LP | | 2011 |
| Freedman Properties Limited | Construction | 2017 |
| Freedomcoffeeuk Ltd | Manufacturing | 2024 |
| Freehold Molyneux Place Ltd. | Households | 2007 |
| Fresh Speed Logistics Ltd | Transport & logistics | 2011 |
| Freshers Pbsh Chester Nominee Limited | Financial services | 2011 |
| Freshface Studio Limited | Professional & scientific | 2023 |
| Freshfield Property Ltd | Real estate | 2021 |
| Fribbens Ltd | Professional & scientific | 2008 |
| Fridgesaver Limited | Manufacturing | 2008 |
| Frindsbury Properties Limited | Professional & scientific | 2000 |
| From the Ground UP Associates Limited | Construction | 2020 |
| From Workshop Limited | Manufacturing | 2012 |
| Frontpage AI Limited | Information & communication | 2026 |
| Frostview Limited | Information & communication | 2001 |
| FS Green Horizons Ltd | Real estate | 2022 |
| FS Roofing Ltd | Construction | 2025 |
| FTS Trading Ltd | Construction | 2022 |
| Fugati Ltd | Wholesale & retail | 2019 |
| Fully Cleared Limited | Transport & logistics | 2012 |
| Fumboo Limited | Arts & recreation | 2013 |
| Furn Group Ltd | Other services | 2016 |
| Fusion 3PL Ltd | Transport & logistics | 2019 |
| Fusion Media (Europe) Limited | Administrative & support | 2004 |
| Fusional Ltd | Professional & scientific | 2006 |
| Future Power Limited | Professional & scientific | 2018 |
| Futurum Developments Limited | Construction | 2023 |
| FVB Retouch Ltd | Professional & scientific | 2024 |
| G D Autos Limited | Wholesale & retail | 2011 |
| G Hall Contractors Ltd. | Construction | 2015 |
| G Heselden Ltd | Professional & scientific | 2014 |
| G K R Logistics Limited | Construction | 2001 |
| G M B Enterprises Limited | Real estate | 1966 |
| G One Consultancy Limited | Professional & scientific | 2009 |
| G R Oak RTM Company Ltd | Households | 2026 |
| G S Jewellery MFY (UK) Limited | Wholesale & retail | 2025 |
| G&L Futures Ltd | Construction | 2014 |
| G.Haywood Limited | Professional & scientific | 1971 |
| G.S. Metro Limited | Financial services | 2013 |
| G13-QU Security Ltd | Administrative & support | 2011 |
| G2 Intelligence Limited | Information & communication | 2018 |
| G2 Property Developments Ltd | Construction | 2021 |