| Fraser Parkes Property Holdings Limited | Real estate | 2026 |
| Frasers House Ltd | Health & social care | 2018 |
| Freda Ltd | Administrative & support | 2019 |
| Freddie & Wilson Ltd | Wholesale & retail | 2025 |
| Free Lion Real Estate Limited | Real estate | 2018 |
| Freebeale Limited | Construction | 2025 |
| Freebird Design Limited | Professional & scientific | 2006 |
| Freedz Consultancy Limited | Other services | 2016 |
| Freeflowa Ltd | Wholesale & retail | 2024 |
| Freelance Digital Limited | Information & communication | 2018 |
| Freemoovement UK CIC | Education | 2017 |
| French Pastries Ltd | Hospitality | 2017 |
| Fresca Home Ltd | Real estate | 2020 |
| Fresh Africa Limited | Wholesale & retail | 2024 |
| Fresh Business Finance Ltd | Financial services | 2025 |
| Fresh CUT Lawn Care and Gardening Ltd | Administrative & support | 2023 |
| Fresh Ground Films Limited | Information & communication | 2018 |
| Fresh Group Holdings Limited | Financial services | 2025 |
| Fresh Key Properties Limited | Administrative & support | 2026 |
| Fresha Limited | Wholesale & retail | 2002 |
| Freshginger Ltd | Information & communication | 2010 |
| FRG Development Holdings Limited | Financial services | 2019 |
| Friar Tuck Ltd | Hospitality | 2018 |
| Friend Family Group Ltd | Real estate | 2024 |
| FRO Limited | Administrative & support | 2023 |
| Frogmore Management Company Ltd | Real estate | 2026 |
| Front ROW Management Limited | Administrative & support | 1997 |
| Frontier Installations Ltd | Information & communication | 2025 |
| Frost Coaching & Counselling Limited | Health & social care | 2024 |
| Froth Distribution Limited | Wholesale & retail | 2023 |
| Frutifero Investment II Limited | Real estate | 2019 |
| Fry's Hospitality Ltd | Hospitality | 2024 |
| Fryer Hire Construction Limited | Construction | 2015 |
| Fryer Tucks Challaborough Ltd | Hospitality | 2025 |
| Fsbee Ltd | Professional & scientific | 2024 |
| Fsjconsultancy Ltd | Administrative & support | 2013 |
| FT Coaching Limited | Arts & recreation | 2024 |
| Ftbc Ltd | Professional & scientific | 2020 |
| Ftec FMC Limited | Construction | 2014 |
| Ftech Engineering Ltd | Wholesale & retail | 2015 |
| FTI Property Holdings Ltd | Real estate | 2021 |
| FTI Property Ltd | Real estate | 2021 |
| FTS Properties Limited | Real estate | 2025 |
| Full View Group (UK) Limited | Financial services | 2014 |
| FUN City Group Limited | Financial services | 2025 |
| Functional Movement Systems (UK) Ltd | Education | 2018 |
| Functioning COG Ltd | Hospitality | 2023 |
| Funding File Limited | Information & communication | 2022 |
| Funding for Social Change Limited | Other services | 1986 |
| Funeral Zone Limited | Other services | 2012 |
| Funky Mamas Limited | Hospitality | 2015 |
| Funtime Events Limited | Arts & recreation | 2006 |
| Fusion Media Services Limited | Information & communication | 2008 |
| Fusion School Services Limited | Administrative & support | 2021 |
| Futura Digital App Ltd | Professional & scientific | 2024 |
| Futura Hair Group Ltd. | Other services | 2013 |
| Futural Aluminium Ltd | Wholesale & retail | 2023 |
| Future Commissioning Ltd | Other services | 2017 |
| Future Construction Ltd | Construction | 2013 |
| Future Imaging Design Ltd | Professional & scientific | 2005 |
| Future Optics Ltd | Information & communication | 2019 |
| Future Systems Limited | Professional & scientific | 2025 |
| Future Underground Nation Limited | Arts & recreation | 2008 |
| Futureproof Building Limited | Construction | 2019 |
| Futures Advisory Limited | Professional & scientific | 2023 |
| Futurus Earthscape Limited | Real estate | 2024 |
| Futurus Solutions Limited | Professional & scientific | 2022 |
| FVG Sporting Vision International Limited | Administrative & support | 2009 |
| FX Worx Ltd | Information & communication | 2019 |
| FY Studio Ltd | Information & communication | 2025 |
| G & C Building and Groundworks Ltd | Construction | 2026 |
| G & L Medical Services Limited | Health & social care | 2019 |
| G B Gould Property Ltd | Real estate | 2024 |
| G Harris Plumbing & Heating Engineer Limited | Construction | 2007 |
| G K Land Engineering Company Limited | Extraterritorial | 2007 |
| G L Westcountry Properties Limited | Real estate | 2015 |
| G Lion Limited | Hospitality | 2025 |
| G Mccartan Ltd | Wholesale & retail | 2026 |
| G W Properties (Devon) Limited | Extraterritorial | 2012 |
| G&Dent Ltd | Health & social care | 2025 |
| G&N Optima Construction Ltd | Construction | 2026 |
| G&R Electrical Contracting Limited | Construction | 2017 |
| G&R Properties (SW) Ltd | Real estate | 2024 |
| G&T Property & Land Ltd | Real estate | 2016 |
| G. K. Land Engineering (Holdings) Ltd | Financial services | 2001 |
| G.D.M.C. Limited | Professional & scientific | 1996 |
| G.E.T. Investments Limited | Real estate | 2004 |
| G.H. Newbery & SON Limited | Extraterritorial | 2013 |
| G.M.Building Services Ltd | Construction | 2003 |
| G.N.S Heating Ltd | Construction | 2016 |
| G.S.Midcenturylettings Ltd | Real estate | 2023 |
| G3 Plumbing & Heating Ltd | Construction | 2019 |
| GA Services SW Limited | Construction | 2016 |
| Gabriella Holly Limited | Health & social care | 2025 |
| Gaca Commercial Ltd | Administrative & support | 2026 |
| Gaia Renewable Technology Ltd | Professional & scientific | 2022 |
| GAK Local Express Limited | Wholesale & retail | 2022 |
| Gale Trading Co. Ltd | Hospitality | 2025 |
| Galmpton Park Bungalows Limited | Real estate | 2003 |
| Game Change Legal Limited | Real estate | 2015 |