| F.A. Humberstone & Partners (East Anglia) Limited | Administrative & support | 1995 |
| Face to Face Financial Management Limited | Financial services | 2001 |
| Facilis Ltd | Agriculture & fishing | 2023 |
| Fairgrieve Advisers Limited | Administrative & support | 2021 |
| Falmenta Falcon Limited | Real estate | 2025 |
| Fantasy Darts Limited | Extraterritorial | 2020 |
| Farmbrain Ltd | Information & communication | 2026 |
| Farshid Ltd. | Professional & scientific | 2015 |
| Fatstickman Limited | Professional & scientific | 2011 |
| FCC Communities Foundation Limited | Financial services | 1997 |
| Feedback CS Ltd | Professional & scientific | 2013 |
| Fellowes Financial Accounting Ltd | Wholesale & retail | 2011 |
| Fernside Veterinary Centre Limited | Professional & scientific | 2004 |
| Fibre Naturelle Limited | Administrative & support | 1997 |
| Fielding Cottage (Holding) Limited | Financial services | 2017 |
| Fielding Cottage (Leisure) Limited | Hospitality | 2017 |
| Fielding Cottage (Properties) Limited | Real estate | 2021 |
| Fielding Cottage Cheese Limited | Manufacturing | 2018 |
| Fielding Cottage Limited | Agriculture & fishing | 2010 |
| Finclec Ltd | Education | 2025 |
| Finn Caldwell Ltd | Arts & recreation | 2017 |
| First Infra Red Sensor Technology Limited | Manufacturing | 2012 |
| First Prime Care Ltd | Health & social care | 2013 |
| First Sensors Limited | Manufacturing | 2003 |
| First Strike Fireworks Ltd | Wholesale & retail | 2022 |
| Fisher 16-26 Management Ltd | Households | 2023 |
| Fishwick Builders Ltd | Construction | 2021 |
| Flagfinders (CTB) Ltd. | Transport & logistics | 1976 |
| Flawk Ltd | Construction | 2023 |
| Fletch Engineering Services Ltd | Professional & scientific | 2021 |
| Flight Simulator Sales & Servicing Limited | Manufacturing | 2015 |
| Flight Simulators Ltd | Manufacturing | 2013 |
| Flint Lagoon Limited | Households | 2024 |
| Florotto Properties LLP | | 2024 |
| FLY Dragon Norfolk Ltd | Hospitality | 2025 |
| Flying B Limited | Wholesale & retail | 2016 |
| Foggy Bottom Books Ltd | Information & communication | 2022 |
| FOO Software Ltd. | Information & communication | 2007 |
| Forever and a Day Ltd | Wholesale & retail | 2016 |
| Fork and Barrel Ltd | Hospitality | 2025 |
| Forker Musk Seller Ltd | Wholesale & retail | 2020 |
| Fortune 999 Limited | Real estate | 2025 |
| Foulger & Larter Ltd | Agriculture & fishing | 2021 |
| Foulger Plant Ltd | Administrative & support | 2022 |
| Fountain Fabrications Limited | Construction | 2012 |
| Four Acres Stud Ltd | Agriculture & fishing | 2008 |
| Fourways Dental Limited | Health & social care | 2008 |
| Frank Davey Group Holdings Ltd | Financial services | 2017 |
| Frank Davey Ltd | Construction | 1998 |
| Fraser Duffin Limited | Financial services | 2013 |
| Free Range Chicken Limited | Agriculture & fishing | 2004 |
| Free Range Turkey Limited | Agriculture & fishing | 2007 |
| Freeformers Limited | Administrative & support | 2023 |
| Frenze Partnership Limited | Real estate | 2022 |
| Fresh Eras Ltd | Financial services | 2023 |
| Frontside Design & Build Ltd | Construction | 2024 |
| Frost Energy Limited | Administrative & support | 2011 |
| Frost Property Limited | Construction | 2018 |
| Full Flow Media Ltd | Information & communication | 2017 |
| Funeral Motorcycles Ltd | Transport & logistics | 2014 |
| Funerals by Mark Drake Ltd | Other services | 2019 |
| Furniture Direct Supply Limited | Manufacturing | 2011 |
| Future Perfect Initiative Ltd. | Professional & scientific | 2020 |
| Fyson Associates Ltd | Professional & scientific | 2019 |
| G & H Flooring Limited | Wholesale & retail | 2021 |
| G Shurey & SON (Butchers) Limited | Wholesale & retail | 2017 |
| G. F. Cole and SON (Holdings) | Professional & scientific | 1988 |
| G.B. Spurling Asphalt Limited | Construction | 1996 |
| G.F. Cole and SON Limited | Agriculture & fishing | 1987 |
| G.N. Rackham & Sons Limited | Construction | 1950 |
| Galleon Travel 2009 Ltd | Transport & logistics | 2008 |
| Gallop Digital Limited | Information & communication | 2017 |
| Gamma Curve Limited | Information & communication | 2016 |
| Gapp Family Properties Limited | Energy | 2025 |
| Garnett & Mason Limited | Other services | 2005 |
| Garnham Enterprises Ltd | Other services | 2012 |
| Gcah Ltd | Professional & scientific | 2022 |
| Gemini Offshore Ltd | Professional & scientific | 2024 |
| Gentlemans Barber Ltd | Other services | 2016 |
| George Gooderham & SON Limited | Professional & scientific | 2016 |
| George Gooderham (Investments) Limited | Construction | 1965 |
| George Parcel Delivery Limited | Transport & logistics | 2017 |
| GGF Engineering Ltd | Professional & scientific | 2025 |
| GH Consultants Limited | Administrative & support | 2009 |
| Giants and Jellybeans Ltd | Arts & recreation | 2014 |
| Giclean Limited | Administrative & support | 2013 |
| Gilbert Translations Limited | Professional & scientific | 2022 |
| Gillhouse Limited | Education | 2011 |
| Gillis Consulting Limited | Professional & scientific | 2017 |
| Gillis Holdings Limited | Administrative & support | 2015 |
| Gintel Building Services Limited | Extraterritorial | 2006 |
| Girling & Company Limited | Mining & quarrying | 2010 |
| Girling & Company Software Limited | Information & communication | 2013 |
| Gissing Pigs Ltd | Agriculture & fishing | 2022 |
| GJ Orford & Partners Limited | Agriculture & fishing | 2013 |
| GJF Holdings Limited | Financial services | 2024 |
| GK Aesthetic Services Ltd | Health & social care | 2020 |
| Gkdf Construction Limited | Construction | 2025 |
| Glazing Renovations Ltd | Construction | 2018 |
| Glazing Vision Group Limited | Professional & scientific | 2020 |