| Field Way Send Management Limited | Households | 2024 |
| Fiercelight Productions Limited | Health & social care | 2014 |
| FIG Design Limited | Manufacturing | 2002 |
| FIIT4GROWTH Ltd. | Professional & scientific | 2018 |
| Finalpower Limited | Administrative & support | 1989 |
| Financia Consulting Ltd | Professional & scientific | 2026 |
| Financiary Limited | Wholesale & retail | 2022 |
| Finch PM Limited | Information & communication | 2003 |
| Finch Pro Management Ltd | Professional & scientific | 2022 |
| Fine Investment Training Limited | Financial services | 2015 |
| Fingers and Thumbs Massage Ltd | Other services | 2020 |
| Fingertips Intelligence Limited | Information & communication | 2006 |
| Fire and Iron Limited | Manufacturing | 1982 |
| Fire Compliance & Safety (Leatherhead) Limited | Information & communication | 2008 |
| Fireborn Ltd | Wholesale & retail | 2024 |
| Firelist Ltd | Information & communication | 2026 |
| First Class Property Maintenance Ltd | Households | 2021 |
| First Montague Chase Management Company Limited | Households | 1994 |
| First Wave Logistics Limited | Transport & logistics | 2017 |
| Fisaac Holdings Ltd | Wholesale & retail | 2023 |
| Fit-Ex Limited | Wholesale & retail | 2004 |
| FIT4TAP Outreach CIC | Education | 2023 |
| Flagship Belgravia Limited | Administrative & support | 2010 |
| Flashcat Media Limited | Information & communication | 2024 |
| Flashcat Productions Limited | Information & communication | 2007 |
| Fleeting Fashion Ltd | Wholesale & retail | 2014 |
| Fletcher George Recruitment Ltd | Administrative & support | 2006 |
| Flexu Ltd | Professional & scientific | 2025 |
| Flight Facilities Limited | Information & communication | 2024 |
| Flowertalk Records Limited | Information & communication | 2023 |
| FLR & Co Ltd | Administrative & support | 2015 |
| FMS Management Solutions Ltd | Construction | 2022 |
| Foamline Apparel Ltd | Wholesale & retail | 2025 |
| Focus 47 Limited | Professional & scientific | 2021 |
| FOH Services Ltd | Wholesale & retail | 2017 |
| Folies Lingerie & Beachwear Ltd | Wholesale & retail | 2021 |
| Fomon Ltd | Construction | 2025 |
| Formatlock Limited | Professional & scientific | 1996 |
| Formidable Property Limited | Real estate | 2022 |
| Fortell.Ai Limited | Information & communication | 2023 |
| Fothergill Court Management Company Limited | Households | 2000 |
| Four Wells Management Limited | Professional & scientific | 2013 |
| Fourforty Management Limited | Professional & scientific | 2010 |
| FOX and Vixens Limited | Administrative & support | 2005 |
| FOX Refinery Holdings Ltd | Professional & scientific | 2025 |
| Foxbase Consulting Ltd | Information & communication | 2021 |
| Foxmead Associates Ltd | Professional & scientific | 2019 |
| Fraxinus Investments Limited | Real estate | 2025 |
| Frazer-Nash Consultancy Limited | Professional & scientific | 1990 |
| Fredrika Nico Limited | Administrative & support | 2010 |
| Freedom Flying Automation Limited | Arts & recreation | 2018 |
| Freedom Flying Limited | Administrative & support | 2003 |
| Freeranger Animal Care Services Limited | Other services | 2020 |
| French Wedding Suppliers Ltd | Professional & scientific | 2023 |
| French Wedding Venues Ltd | Wholesale & retail | 2025 |
| Fresh Deli Bookham Limited | Hospitality | 2025 |
| Fresh Stationery Ltd | Wholesale & retail | 2011 |
| Friars Oak (Hassocks) Residents Management Company Limited | Households | 2024 |
| Friends of Danes Hill | Education | 2011 |
| Frontière Advisory Ltd | Professional & scientific | 2025 |
| Frontpage Marketing Ltd | Administrative & support | 2010 |
| Fruit and Vegetable Traders Limited | Wholesale & retail | 2018 |
| FTX Logistics Limited | Transport & logistics | 2001 |
| Fulcrum Design Limited | Professional & scientific | 1996 |
| Full Frame Focus Limited | Other services | 2022 |
| Fullworks Digital Ltd | Information & communication | 2011 |
| Fultech Ltd | Professional & scientific | 2017 |
| Fulwood Place (West END) Management Company Limited | Households | 2026 |
| Function Limited | Administrative & support | 2011 |
| Functionology Ltd | Health & social care | 2022 |
| Fungibry Ltd | Arts & recreation | 2026 |
| FUR Boutique Limited | Other services | 2025 |
| Fusgo Limited | Financial services | 2019 |
| Future Light Design Ltd | Other services | 2007 |
| Future Solutions Group Ltd | Professional & scientific | 2023 |
| G Ballard Consulting Ltd | Other services | 2022 |
| G Garysma Services Ltd | Administrative & support | 2018 |
| G T S Ventures Limited | Professional & scientific | 2000 |
| G.E. Mechanical & Electrical Services Ltd | Construction | 2008 |
| G.N.L. Limited | Construction | 2003 |
| G.Purchase Construction Limited | Construction | 2002 |
| G2 Live Ltd | Arts & recreation | 2009 |
| G4 Properties (Frimley) Limited | Real estate | 2021 |
| G4 Properties (Leatherhead) Limited | Construction | 2020 |
| Gabe Homes Limited | Real estate | 1996 |
| Gabon Automative Ltd | Wholesale & retail | 2026 |
| Gadgetra Ltd | Wholesale & retail | 2025 |
| Gainsborough Court (Five) Management Company Limited | Households | 1993 |
| Gainsborough Place Residents Company Limited | Households | 1995 |
| Galapagos Ltd. | Professional & scientific | 2011 |
| Galaxy Group Bidco Limited | Financial services | 2017 |
| Galierdo Ltd | Manufacturing | 2025 |
| Gambetta Mornay Limited | Professional & scientific | 2013 |
| Gamerlab Ltd | Administrative & support | 2020 |
| Ganaan Ltd | Financial services | 2011 |
| Gardeners' Royal Benevolent Society | Real estate | 2013 |
| Gardens & Leaves Ltd | Administrative & support | 2012 |
| Gardens Reborn Ltd | Professional & scientific | 2023 |
| Garel Associates Limited | Professional & scientific | 2012 |
| Garrett Mccarroll Knowles Limited | Administrative & support | 1998 |