| FFS Service Company Limited | Information & communication | 2025 |
| FG91 Fastream Ltd | Professional & scientific | 2021 |
| FGH Limited | Real estate | 2015 |
| Field View 2015 Limited | Real estate | 2015 |
| Fifty Eggs Limited | Information & communication | 2008 |
| Finch Kebab Limited | Hospitality | 2025 |
| Finns Farm 2021 Limited | Agriculture & fishing | 2020 |
| Finns Farm Ltd | Real estate | 2014 |
| Finns Farm Maintenance Limited | Manufacturing | 2023 |
| Finseco Consulting Limited | Professional & scientific | 2023 |
| Fires and Flues Limited | Construction | 2016 |
| Firmbase Drives & Patios Limited | Construction | 2022 |
| First 4 Vans (Hire) Ltd | Administrative & support | 2021 |
| First 4 Vans (Sales) Ltd | Wholesale & retail | 2020 |
| First Plumbing & Heating-Uk Ltd | Construction | 2025 |
| First Touch Healthcare Limited | Health & social care | 2022 |
| First Vehicle Finance Ltd | Financial services | 2004 |
| Five Stars Travel and Tourism Limited | Administrative & support | 2017 |
| Fiveacross Limited | Construction | 2012 |
| Flavor Sampling Ltd. | Professional & scientific | 2019 |
| Fleur-Deanne Care Services Ltd | Health & social care | 2026 |
| Flex Hire Company Limited | Administrative & support | 2018 |
| Flexible Business Support Ltd | Professional & scientific | 2020 |
| Flight Directors Scheduled Services Limited | Administrative & support | 1988 |
| Flight Test Management LLP | | 2014 |
| Floorless (Surrey) Ltd | Construction | 2023 |
| Flowmaster Limited | Construction | 2023 |
| FLT Projects Limited | Construction | 2014 |
| Flyparks Ltd | Transport & logistics | 2008 |
| FM Tags Limited | Administrative & support | 2008 |
| Foers International Limited | Professional & scientific | 2021 |
| Folan & Johnson Limited | Construction | 2007 |
| Food in Frame Ltd | Administrative & support | 2022 |
| Forged Holdings Limited | Extraterritorial | 2025 |
| Formco Construction Limited | Administrative & support | 2009 |
| Formost Fabrications Ltd | Manufacturing | 2000 |
| Fortis Creative Ltd | Information & communication | 2020 |
| Fosters DRY Cleaners Centre Limited | Other services | 2004 |
| Fourwinds 2020 Limited | Real estate | 2020 |
| FOX Wood (Walton-On-Thames) Management Company Limited | Households | 2005 |
| FP Massage Therapy Clinic Ltd | Other services | 2025 |
| Frampton Soundworks Ltd | Administrative & support | 2025 |
| Freddie Gover Limited | Wholesale & retail | 2012 |
| Freefire Media Ltd | Information & communication | 2011 |
| Freehold 18 Glamis Street Ltd | Extraterritorial | 2021 |
| Freyaandreyaco Ltd | Professional & scientific | 2026 |
| Friday First Limited | Information & communication | 2019 |
| Frisby Investments Ltd | Health & social care | 2019 |
| Frozen Family Ltd | Wholesale & retail | 2020 |
| Full Spec Construction Ltd | Construction | 2013 |
| Furry Friends Freedom Fields Ltd | Other services | 2026 |
| Fusilier Construction Services Limited | Construction | 2004 |
| Futaris Limited | Information & communication | 2024 |
| Future Windows (Horley) Limited | Manufacturing | 2003 |
| Futurenet UK Ltd | Wholesale & retail | 2020 |
| Fynlo AI Ltd | Professional & scientific | 2024 |
| G F C Logistics Ltd | Other services | 2012 |
| G MAP Automotive Ltd | Wholesale & retail | 2025 |
| G-Force Drainage & Construction Ltd | Construction | 2023 |
| G-Force Garden & Landscaping Services Ltd | Administrative & support | 2024 |
| G. Lee-Vaughan Limited | Manufacturing | 2007 |
| G.B.Haulage (Worthing) Ltd | Transport & logistics | 2019 |
| G.E.T. Carter Drainage Limited | Water & waste | 1983 |
| Gabi Berkelmann Limited | Information & communication | 2025 |
| Gabriel's Gardening Services Limited | Administrative & support | 2021 |
| Garden Innovation Mail Order Limited | Wholesale & retail | 2010 |
| Gareth Copsey Carpentry Ltd | Construction | 2015 |
| Garry Drewett Ltd | Information & communication | 2014 |
| Gatehead Limited | Financial services | 2025 |
| Gatwick Birchwood Lodge Ltd | Hospitality | 2024 |
| Gatwick Business Community Centre Ltd | Real estate | 2026 |
| Gatwick Cambridge Hotel Limited | Hospitality | 2021 |
| Gatwick Castle B&B Ltd. | Hospitality | 2017 |
| Gatwick Cosy Stay Ltd | Hospitality | 2026 |
| Gatwick Direct Aeroport Ltd | Transport & logistics | 2025 |
| Gatwick Exporters Limited | Wholesale & retail | 1984 |
| Gatwick Footgolf Centre Limited | Arts & recreation | 2016 |
| Gatwick Hoppa Ltd | Transport & logistics | 2020 |
| Gatwick L.M.S. Limited | Manufacturing | 1991 |
| Gatwick Leisure Services Ltd | Arts & recreation | 2019 |
| Gatwick Litigations Limited | Public administration | 2021 |
| Gatwick Logistics Limited | Transport & logistics | 2021 |
| Gatwick Run Limited | Transport & logistics | 2019 |
| Gatwick Self Storage Limited | Real estate | 2019 |
| Gatwick Turret Ltd | Hospitality | 2015 |
| Gatwick Vertiport Ltd | Transport & logistics | 2021 |
| Gcoppp Ltd | Professional & scientific | 2025 |
| Gelrad Europe Limited | Professional & scientific | 2005 |
| Gentle Touch Care Ltd | Administrative & support | 2019 |
| Geoffrey Barber Contractors Ltd | Construction | 2018 |
| GET Your Body Fitness Ltd | Arts & recreation | 2017 |
| GGM London Ltd | Construction | 2025 |
| Ggsl Holdings Limited | Other services | 2017 |
| Ggsl Investments Ltd | Other services | 2021 |
| Gido Consultancy Ltd | Professional & scientific | 2016 |
| Gido Group Ltd | Real estate | 2025 |
| Gido Homes Ltd | Real estate | 2019 |
| Gido Legacy Investments Ltd | Financial services | 2026 |
| Gido Logistics Ltd | Transport & logistics | 2023 |
| Giggrab Ltd | Information & communication | 2025 |