| Food Lovers Delight Ltd | Hospitality | 2003 |
| Food Premier Ltd | Manufacturing | 2018 |
| Food&B Limited | Hospitality | 2026 |
| Fooddsure PVT Ltd | Professional & scientific | 2024 |
| Foodfromjsbrothers Ltd | Hospitality | 2025 |
| Force Builders Limited | Construction | 2009 |
| Forklift License Training UK Ltd | Education | 2019 |
| Form Health (UK) Limited | Administrative & support | 2013 |
| Fort Services Ltd | Health & social care | 2006 |
| Forteau's Workforce Solution Ltd | Professional & scientific | 2026 |
| Fortis Protection Services Ltd | Administrative & support | 2024 |
| Fortisbridge Limited | Professional & scientific | 2025 |
| Fortlake Limited | Professional & scientific | 2004 |
| Forwardpro Supplies Limited | Wholesale & retail | 2026 |
| Foster N Ltd | Hospitality | 2014 |
| Fota Automotive Ltd | Wholesale & retail | 2021 |
| FP Media Ltd | Professional & scientific | 2023 |
| Framein Ltd | Manufacturing | 2025 |
| Francescos Investment Ltd | Real estate | 2025 |
| Franchi IT Consulting Limited | Information & communication | 2019 |
| Fransland Studios Limited | Information & communication | 2019 |
| Fraroma Limited | Financial services | 1992 |
| Fraroma Restaurant Limited | Hospitality | 1992 |
| Fraser Health Training Ltd | Public administration | 2020 |
| Fred Allen Broadcasting Services Ltd | Manufacturing | 2010 |
| Free Music Ltd | Information & communication | 2014 |
| Freedman & Partners LLP | | 2013 |
| Freeman Flow Ltd | Professional & scientific | 2025 |
| Frescomedia Limited | Information & communication | 2002 |
| FRESHCLEANERS28 Ltd | Administrative & support | 2025 |
| Freshmake Ltd | Hospitality | 2017 |
| Freshwave Distribution Ltd | Wholesale & retail | 2024 |
| Friendly Wood House Limited | Construction | 2023 |
| Frontline Homecare Services Ltd | Health & social care | 2017 |
| Frost Matters Limited | Manufacturing | 2009 |
| Frough Ltd | Real estate | 2021 |
| Fruits & Vegetables Supply Ltd | Wholesale & retail | 2021 |
| FS Builders & Groundworks Ltd | Construction | 2026 |
| Fsuk Limited | Wholesale & retail | 2015 |
| Ftspot Limited | Wholesale & retail | 2015 |
| Fujienergy Limited | Extraterritorial | 2025 |
| Fulfil Nutrition GB Limited | Manufacturing | 2019 |
| Fullwell Construction Limited | Construction | 2019 |
| Fully Financial Limited | Professional & scientific | 2015 |
| FUN-KEYS4KIDS Limited | Education | 2012 |
| Functional Brands Ltd | Wholesale & retail | 2013 |
| Funzone International Ltd | Wholesale & retail | 2024 |
| FUR Fabrics Limited | Extraterritorial | 1963 |
| Fussen Ltd | Construction | 2014 |
| Future Awaits Ltd | Professional & scientific | 2024 |
| Future Leisure Limited | Arts & recreation | 2004 |
| Future Machines Limited | Other services | 1993 |
| FWF Limited | Construction | 2018 |
| G L Construction 4 U Ltd | Other services | 2014 |
| G&L Building Services Ltd | Construction | 2024 |
| G&P Arora Ltd | Financial services | 2025 |
| G. Gunes Ltd | Construction | 2016 |
| G.A.G. Property Ltd | Real estate | 2023 |
| G.I.M. Finance Limited | Financial services | 1983 |
| G2 Works Limited | Extraterritorial | 2022 |
| Gabrys Construction Ltd | Construction | 2019 |
| Gage International Ltd | Education | 2016 |
| Gaintime Ltd | Construction | 2015 |
| Galad Services Ltd | Transport & logistics | 2026 |
| Gallery Health Club Limited | Arts & recreation | 2025 |
| Galvertown Limited | Real estate | 2006 |
| Galvin Brasserie DE Luxe Limited | Hospitality | 2005 |
| Galvin Holdings Limited | Financial services | 2020 |
| Galvin Property Holdings Limited | Real estate | 2015 |
| Galvin PUB Company Limited | Hospitality | 2014 |
| Ganesh Group Limited | Wholesale & retail | 2026 |
| Garden Homeware Ltd | Wholesale & retail | 2019 |
| Garfwish Limited | Construction | 2013 |
| Garlande Limited | Other services | 2013 |
| Garratt Lane Management Company Limited | Real estate | 1977 |
| Garrett Consultants Limited | Mining & quarrying | 2016 |
| Garryown Properties Limited | Real estate | 2022 |
| Gartan Limited | Construction | 2013 |
| Gartner Pralines Limited | Extraterritorial | 1987 |
| GAS & Electric Solutions Ltd | Manufacturing | 2021 |
| Gazelle Safaris Limited | Administrative & support | 2016 |
| GB DJ Limited | Arts & recreation | 2026 |
| GB Home Builders Ltd | Construction | 2026 |
| GB Home Solutions Ltd | Construction | 2020 |
| GB Partners Ltd | Wholesale & retail | 2020 |
| GBT Shop Ltd | Wholesale & retail | 2023 |
| GC London Carpentry Ltd | Manufacturing | 2020 |
| Gchelman Service Ltd | Transport & logistics | 2025 |
| GCI Real Properties Limited | Hospitality | 2025 |
| GCO Construct Ltd | Construction | 2015 |
| GDJ Holdings Ltd | Financial services | 2024 |
| Gdml Company Ltd | Professional & scientific | 2012 |
| GEE BEE Enterprises Limited | Wholesale & retail | 2007 |
| GEE BEE Group Limited | Financial services | 2022 |
| GEE BEE Real Estate Limited | Real estate | 2022 |
| Geekme Ltd | Education | 2019 |
| Geenni Ltd | Wholesale & retail | 2025 |
| Geeta Pharma Ltd | Wholesale & retail | 2022 |
| Gemini Investments Consulting Limited | Administrative & support | 2021 |
| Gems Travel Limited | Administrative & support | 2008 |