| Fitzen Pilates Limited | Other services | 2024 |
| Fixtoday Property Maintenance Ltd | Construction | 2023 |
| Fizzywizzy Care Limited | Administrative & support | 2023 |
| Flatsity Ltd | Real estate | 2022 |
| Flex SOC Ltd | Wholesale & retail | 2026 |
| FM Global Trading Ltd | Wholesale & retail | 2021 |
| Focus Finance Solutions Limited | Financial services | 2019 |
| Focused Wellbeing Ltd | Health & social care | 2026 |
| Fond of Care Ltd | Public administration | 2019 |
| Food Forward Consultancy Ltd | Hospitality | 2023 |
| FOR Workers Ltd | Information & communication | 2026 |
| Foreman Refurbishment Ltd | Construction | 2025 |
| Forest Close Management Company Limited | Other services | 1984 |
| Forest View (Cowes) Management Company Limited | Extraterritorial | 2000 |
| Formation London Limited | Professional & scientific | 2014 |
| Fortress Eelam Ltd | Real estate | 2025 |
| Forward Design Studio Limited | Professional & scientific | 2021 |
| Foss Way Consultancy Ltd | Households | 2024 |
| FOURTEEN10 Ltd | Wholesale & retail | 2018 |
| Foxcore Limited | Extraterritorial | 2025 |
| Fractal Business Consulting Ltd | Information & communication | 2021 |
| Framesolve AI Ltd | Administrative & support | 2025 |
| Franco Tax and Accountancy Services Limited | Professional & scientific | 2010 |
| Frank DI Lusso Hair (Banstead) Ltd | Other services | 2023 |
| Frank DI Lusso Hair Limited | Other services | 2014 |
| Frankton House Farm Limited | Construction | 2026 |
| Freegold Management Company Limited | Households | 1980 |
| Friends of Gaia Ltd | Wholesale & retail | 2016 |
| Froga Ltd | Real estate | 2025 |
| Frontier Global Trade Ltd | Real estate | 2019 |
| Frontline Electrical (London) Ltd | Construction | 2014 |
| FSL Estates Limited | Real estate | 2024 |
| Fudge Cakes Circle Bakery Ltd | Wholesale & retail | 2011 |
| Fuerte Ventures Limited | Financial services | 2021 |
| Full Moon Pizza Carshalton Limited | Hospitality | 2024 |
| Furtado Ltd | Health & social care | 2017 |
| Future Builds App Limited | Information & communication | 2025 |
| FWS Manufacturing Limited | Construction | 2020 |
| G & J Autos's Limited | Wholesale & retail | 2013 |
| G & J Trans Services Ltd | Administrative & support | 2016 |
| G&P PVT Ltd | Real estate | 2025 |
| G. Carter Developments Limited | | 1983 |
| G.S.T. Construction Ltd | Construction | 2020 |
| Gabvid 2021 Ltd | Transport & logistics | 2021 |
| GAD Investments Limited | Financial services | 2025 |
| Gadher Limited | Real estate | 2014 |
| Galab Ltd | Construction | 2012 |
| Galabov Ltd | Construction | 2015 |
| Galaxy Cars Limited | Wholesale & retail | 2022 |
| Galaxy UK Drylining Ltd | Construction | 2018 |
| GAP Electrics & Alarms Limited | Manufacturing | 2010 |
| Gareth Davies Nutrition Ltd | Health & social care | 2026 |
| Garlim Semijoias Ltd | Wholesale & retail | 2019 |
| Garnett Keeler Public Relations Limited | Professional & scientific | 1973 |
| Gary Alveranga Limited | Construction | 2016 |
| Gary Douglas Consulting Limited | Professional & scientific | 2003 |
| GAT Builder Ltd | Construction | 2023 |
| Gatemi Ltd | Manufacturing | 2022 |
| Gaurav Properties Ltd | Real estate | 2025 |
| GDK Medi UK Ltd | Information & communication | 2016 |
| GDL Ltd | Construction | 2019 |
| Gemma Dowler Limited | Professional & scientific | 2021 |
| Gemna Consultancy Co Ltd | Health & social care | 2020 |
| Gemstage Ltd | Arts & recreation | 2014 |
| George Lewis Retouching Ltd | Professional & scientific | 2026 |
| Gerart Art-Build Ltd | Construction | 2023 |
| GES London Limited | Manufacturing | 2013 |
| Get.Hope Ltd | Administrative & support | 2019 |
| GF Fire Solutions Limited | Financial services | 2013 |
| Gftw Ltd | Wholesale & retail | 2017 |
| GHI Windows Ltd | Construction | 2009 |
| Gianni Quartulli Limited | Hospitality | 2024 |
| Gksai Ltd | Information & communication | 2024 |
| Gladden & SON Ltd | Real estate | 2025 |
| Global Fashion Links Limited | Wholesale & retail | 2002 |
| Global Fashion London Ltd | Wholesale & retail | 2024 |
| Globus Driving School Limited | Education | 2017 |
| Glocal International Organization Ltd | Professional & scientific | 2021 |
| Gloss & Go Services Ltd | Administrative & support | 2025 |
| Gloss Nails Bar Ltd | Other services | 2026 |
| Glow Bar by Anita Limited | Other services | 2026 |
| Gmdv Limited | Administrative & support | 2005 |
| Gogolankatravel Ltd | Administrative & support | 2025 |
| Gold Coaching Ltd. | Arts & recreation | 2018 |
| Golddog UK Ltd | Wholesale & retail | 2026 |
| Golden Crown Property Limited | Real estate | 2024 |
| Goldenoak Partners Ltd | Real estate | 2023 |
| Gondama Limited | Health & social care | 2022 |
| Goodchoice IT Limited | Information & communication | 2006 |
| Goose's Pizza Ltd | Wholesale & retail | 2022 |
| Gordon Blair Limited | Financial services | 2016 |
| Gordon Blair Properties Limited | Real estate | 2025 |
| Gorgi Clothing Ltd | Manufacturing | 2019 |
| GP Financials Ltd | Financial services | 2020 |
| Grandeur Construction Limited | Administrative & support | 2025 |
| Grandstand Construction Ltd | Construction | 2025 |
| Gratis Design Limited | Information & communication | 2018 |
| Greek Food and Beverages Ltd | Hospitality | 2026 |
| Green Valley Coffee Limited | Hospitality | 2025 |
| Green Wrythe Management Limited | Professional & scientific | 1994 |