| FRO Beauty Palour Ltd | Other services | 2024 |
| Frog Accounting Ltd | Financial services | 2025 |
| Frog Homecare Limited | Health & social care | 2024 |
| Frolicfolk Ltd | Wholesale & retail | 2025 |
| FROMBOT2HOT Ltd | Wholesale & retail | 2021 |
| Frome Cares CIC | Information & communication | 2025 |
| Front Door Financial Services Ltd | Financial services | 2022 |
| Frontier Governance Advisory Ltd | Professional & scientific | 2023 |
| Frontline Traffic Solutions Ltd | Construction | 2023 |
| Frontroom Creative Ltd | Professional & scientific | 2014 |
| Frore the Lingerie Club Ltd | Wholesale & retail | 2024 |
| FRT Auto Services Ltd | Wholesale & retail | 2017 |
| Frthst Ltd | Wholesale & retail | 2025 |
| Fruit Galore Ltd | Wholesale & retail | 2016 |
| Fruits of the Caterer Limited | Hospitality | 2017 |
| Fruk Business Services Limited | Professional & scientific | 2013 |
| FS Approvals 2019 Ltd | Professional & scientific | 2023 |
| FS Real Global Ltd | Information & communication | 2026 |
| FS Real Holdings Ltd | Financial services | 2026 |
| FSD 23 Resourcery Ltd | Administrative & support | 2023 |
| Fssn Ltd | Real estate | 2020 |
| Ftaxi Transport Ltd | Transport & logistics | 2025 |
| FTB Property Ltd | Administrative & support | 2025 |
| Ftml Materials Handling Ltd | Real estate | 2025 |
| Ftoda Limited | Wholesale & retail | 2024 |
| Fulcrum Business Consulting Ltd | Administrative & support | 2008 |
| Fulfilment in Nature CIC | Health & social care | 2024 |
| Full Ahead Properties Ltd | Real estate | 2025 |
| Full Arch Technologies Limited | Manufacturing | 2024 |
| Full Fitness Gym Ltd | Wholesale & retail | 2023 |
| Full Mental Jacket CIC | Education | 2026 |
| Full of Pixels Ltd | Wholesale & retail | 2020 |
| Functiv Limited | Information & communication | 2026 |
| Funded Trader Ltd | Financial services | 2019 |
| Funky Cat Ltd | Wholesale & retail | 2021 |
| Funky Renewables Ltd | Manufacturing | 2009 |
| Funkystride Ltd | Wholesale & retail | 2025 |
| Funkytails Ltd | Information & communication | 2024 |
| Funpunch ORG Ltd | Wholesale & retail | 2023 |
| Funtoc Ltd | Information & communication | 2022 |
| Furas for Growth and Development Limited | Other services | 2026 |
| Furever Presents Ltd | Wholesale & retail | 2025 |
| Furious PR Limited | Professional & scientific | 2015 |
| Furmz Ltd | Wholesale & retail | 2022 |
| Furni Advisory Limited | Other services | 2025 |
| Furze Executive Assistance Ltd | Administrative & support | 2023 |
| Fuse Consulting Limited | Professional & scientific | 2002 |
| Fusion Electrical Supplies Limited | Wholesale & retail | 2013 |
| Fusions PIM Limited | Information & communication | 2014 |
| Fustera Limited | Professional & scientific | 2006 |
| Future Bridge Global CIC | Education | 2025 |
| Future Concrete Solutions Limited | Construction | 2016 |
| Future Digital Tech Consulting Ltd | Information & communication | 2018 |
| Future Digital Tech Ltd | Information & communication | 2020 |
| Future Forge Solutions Ltd | Manufacturing | 2025 |
| Future Form Medical Solutions Limited | Health & social care | 2024 |
| Future Mind Solutions Limited | Real estate | 2025 |
| Future Proof Direct Limited | Information & communication | 2004 |
| Future Proof Initiatives Ltd | Education | 2025 |
| Future Sounds Partnerships Limited | Education | 2025 |
| Future Stars Coaching Leicester Central Ltd | Education | 2024 |
| Future Vision Property Ltd | Real estate | 2024 |
| Future Wind Turbines Ltd | Professional & scientific | 2023 |
| Futureal Limited | Professional & scientific | 2007 |
| Futureproofs Marketing Ltd | Professional & scientific | 2024 |
| Futures Alliance Ltd | Professional & scientific | 2024 |
| Fuzzymonster Limited | Information & communication | 2000 |
| Fvndation Limited | Manufacturing | 2025 |
| FWN Holdings Limited | Professional & scientific | 2026 |
| FWR Transport Ltd | Transport & logistics | 2021 |
| FX Human Resources Ltd | Professional & scientific | 2019 |
| FYA Holdings Ltd | Real estate | 2025 |
| Fyffe Engineering Ltd | Information & communication | 2008 |
| Fynero Ltd | Information & communication | 2025 |
| Fyromint Ltd | Wholesale & retail | 2025 |
| G & C Groundworks Limited | Construction | 2020 |
| G & H Lawton Ltd | Health & social care | 2009 |
| G COX Limited | Information & communication | 2023 |
| G E Baker Holdings Limited | Financial services | 2018 |
| G Facilities LLP | | 2014 |
| G Kelly Transport Services Ltd | Transport & logistics | 2018 |
| G M Diggins Limited | Construction | 2013 |
| G M Howard & Company Limited | Professional & scientific | 2004 |
| G N Bennett Properties Ltd | Real estate | 2025 |
| G Parish Holdings Ltd | Financial services | 2022 |
| G Passive Compliance Limited | Professional & scientific | 2017 |
| G R Developments Bury Limited | Construction | 2019 |
| G R J Johnson Limited | Other services | 2015 |
| G R Peachey & SON Ltd | Other services | 2013 |
| G&S Enterprise Ltd. | Wholesale & retail | 2025 |
| G. Parish Engineering Limited | Manufacturing | 1999 |
| G.D. Sharma Limited | Administrative & support | 2009 |
| G.E. Baker (U.K.) Limited | Manufacturing | 1978 |
| G.L. Properties Bury ST Edmunds Limited | Construction | 2018 |
| G.P Clinical Coding Ltd | Professional & scientific | 2026 |
| G.Simonavicius Ltd | Transport & logistics | 2025 |
| G1 Estates Ltd | Real estate | 2018 |
| G1 Services International Limited | Information & communication | 2025 |
| G3 Properties (Town and Country) Ltd | Real estate | 2025 |
| G4I Accounts Ltd | Professional & scientific | 2024 |