| FMG Energy Solutions Ltd | Professional & scientific | 2024 |
| FMH Invest Ltd | Wholesale & retail | 2026 |
| FMK Properties Limited | Real estate | 2018 |
| FMS Property Ltd | Real estate | 2025 |
| Foaie Verde Ltd | Transport & logistics | 2019 |
| Foam Furnishings Ltd | Manufacturing | 2003 |
| Focus and Achieve Ltd | Education | 2018 |
| Focus Power Solutions Ltd | Manufacturing | 2021 |
| FOD Solutions Limited | Administrative & support | 2020 |
| Foden Mortgage Solutions Limited | Financial services | 2024 |
| Foden Street Medical Services Ltd | Health & social care | 2017 |
| Foley Oatcakes Shop Ltd | Wholesale & retail | 2025 |
| FONEJUNCTIONST6 Ltd | Wholesale & retail | 2025 |
| Font Bundles Limited | Extraterritorial | 2020 |
| Food Asylum Ltd | Hospitality | 2023 |
| Food Hub Limited | Information & communication | 2017 |
| Food Mania Stoke Ltd | Hospitality | 2026 |
| Foodbox Uttoxeter 1 Ltd | Hospitality | 2023 |
| Foodelectable Catering Company Ltd | Hospitality | 2024 |
| Foodies Blurton Ltd | Hospitality | 2024 |
| FOR Tyres Ltd | Wholesale & retail | 2010 |
| Forbes Lewis Ltd | Administrative & support | 2016 |
| Force Group Hire Limited | Administrative & support | 2023 |
| Ford Green Fast Valeting Ltd | Administrative & support | 2026 |
| Ford Green RD Carwash Ltd | Administrative & support | 2024 |
| Ford Green Takeaway Ltd | Hospitality | 2024 |
| Fords of Blythe Bridge Limited | Agriculture & fishing | 1976 |
| Forefront Development Consulting Limited | Professional & scientific | 2015 |
| Forever 40 Ltd | Hospitality | 2024 |
| Form Collective Ltd | Wholesale & retail | 2026 |
| FORM3D Creative Ltd | Professional & scientific | 2025 |
| Formex Building Blocks Limited | Manufacturing | 2025 |
| Forrester Cliffe Properties Ltd | Real estate | 2023 |
| Forrister Street Developments Ltd | Real estate | 2023 |
| Forsbrook Construction Ltd | Construction | 2026 |
| Forster Street Development Ltd | Real estate | 2021 |
| FORT80 Ltd | Financial services | 2023 |
| Forte Eitec Design Ltd | Information & communication | 2022 |
| Forte Stays Ltd | Real estate | 2025 |
| Fortior Homes (Rental) Limited | Real estate | 2020 |
| Fortior Homes Limited | Construction | 2016 |
| Fortis Health & Safety Ltd | Administrative & support | 2025 |
| Fortius Broking Ltd | Financial services | 2015 |
| Fortuna Deals UK Ltd | Wholesale & retail | 2025 |
| Fortunefort Limited | Wholesale & retail | 2003 |
| Forty Four Tech Ltd | Wholesale & retail | 2024 |
| Forward Footsteps Ltd | Health & social care | 2022 |
| Forward View Consulting Limited | Professional & scientific | 2025 |
| Forza Solara Ltd | Wholesale & retail | 2025 |
| Found and Visible Ltd | Professional & scientific | 2025 |
| Foundation for Education Development CIC | Education | 2019 |
| Four Below Zero Limited | Professional & scientific | 2006 |
| Four Seasons Food Group Limited | Professional & scientific | 2025 |
| Four Walls Clothing Limited | Wholesale & retail | 2020 |
| Four-Tec Fabrications Limited | Manufacturing | 1984 |
| Fourge BBQ Ltd | Manufacturing | 2026 |
| Fourth Wing Properties Ltd | Real estate | 2025 |
| Fourthwall Trading Ltd | Wholesale & retail | 2012 |
| Fourways Vehicle Solutions Limited | Administrative & support | 2002 |
| FOX Homes (Shropshire) Limited | Financial services | 2019 |
| FOX Hound Capital Ltd | Wholesale & retail | 2017 |
| Foxfield Light Railway Society Limited | Transport & logistics | 1971 |
| Foxglove Property Group Ltd | Real estate | 2025 |
| Foxt Community PUB Ltd | Hospitality | 2017 |
| Foxxtech Ltd | Wholesale & retail | 2023 |
| Fradley Estates Limited | Construction | 1937 |
| Fradley Holdings Limited | Financial services | 2014 |
| Fradley Homes Limited | Construction | 1980 |
| Fragmented Lines CIC | Information & communication | 2021 |
| Framedlight Ltd | Professional & scientific | 2014 |
| Framescape Limited | Education | 2018 |
| Frameworks Manufacturing Ltd | Manufacturing | 2025 |
| Franco Property Group Ltd | Real estate | 2026 |
| Franklees UK Limited | Manufacturing | 2020 |
| Franklin & Jameson Joinery Limited | Construction | 2015 |
| Franklin Group Holdings Limited | Financial services | 2023 |
| Franklin Heritage Estates Ltd | Real estate | 2022 |
| Franklin Lowe Property Ltd | Construction | 2020 |
| Franklin Walter Holdings Ltd | Real estate | 2025 |
| Frankson Fitzgerald Ltd | Financial services | 2021 |
| Franky’S Stoke Limited | Hospitality | 2026 |
| Fraz Construction Limited | Construction | 2025 |
| Frazmat Ltd | Wholesale & retail | 2021 |
| Free Lance Medics & Services Ltd | Health & social care | 2019 |
| Free Roaming Ltd | Wholesale & retail | 2024 |
| Free Social Limited | Other services | 2012 |
| Free Solutions Networks Limited | Information & communication | 2014 |
| Freedom Fit Supplies Ltd | Wholesale & retail | 2025 |
| Freedom Retail Limited | Financial services | 2025 |
| Freelance Property Limited | Real estate | 2026 |
| Freight Monster Ltd | Transport & logistics | 2025 |
| Fremantle Coving Ltd | Construction | 2020 |
| Frequent Diners Club Limited | Hospitality | 2004 |
| Frere Avenue Ltd | Wholesale & retail | 2024 |
| Fresco ST7 Limited | Hospitality | 2025 |
| Fresh and FIX UK Ltd | Wholesale & retail | 2025 |
| Fresh Produce Stoke Limited | Wholesale & retail | 2009 |
| Fresh Produce World Ltd | Wholesale & retail | 2016 |
| Fresh Telecoms Ltd | Information & communication | 2016 |
| Freshnan Burslem Ltd | Hospitality | 2026 |