| Fortis Commercial Property Ltd | Real estate | 2025 |
| Fortis Scaffolding Ltd | Construction | 2020 |
| Fortoak Investments Ltd | Administrative & support | 2018 |
| Forton Supplies Limited | Wholesale & retail | 2002 |
| Fortress African Foods Ltd | Hospitality | 2025 |
| Fortress Interlocks Limited | Manufacturing | 1977 |
| Fortuna Accountants Limited | Professional & scientific | 2021 |
| Fortuna Medical Services Limited | Health & social care | 2015 |
| Fortune Brands Global Plumbing Group I UK Co. Limited | Administrative & support | 2017 |
| Fortune Brands Global Plumbing Group II UK Co. Limited | Administrative & support | 2017 |
| Fortune Inn Limited | Hospitality | 2026 |
| Fortune Medical Limited | Health & social care | 2021 |
| Fortune Tax Accountants Ltd | Professional & scientific | 2011 |
| Forward Impact CIC | Education | 2026 |
| Forward Property Investments 2 Ltd | Real estate | 2024 |
| Forward Property Investments Limited | Real estate | 2021 |
| Foster & Grant Compliance & Investigation Services Ltd | Professional & scientific | 2022 |
| Foster Architecture & Design Ltd | Professional & scientific | 2022 |
| Foster Haulage Limited | Transport & logistics | 2003 |
| Foster Property & Design Ltd | Real estate | 2023 |
| Foundry Metallurgical Partners Ltd | Wholesale & retail | 2015 |
| Foundry Stockport Ltd | Arts & recreation | 2025 |
| Fountain of Care Services Limited | Health & social care | 2020 |
| Four Ashes Plumbing Supplies Limited | Wholesale & retail | 2015 |
| Four Corner Housing Ltd | Real estate | 2025 |
| Four Grains Ltd | Manufacturing | 2024 |
| Four Oak Local Ltd | Wholesale & retail | 2018 |
| Four Oaks Landholdings Limited | Real estate | 2025 |
| Four Seasons Lettings Limited | Real estate | 2014 |
| Fourjay Developments Limited | Real estate | 2016 |
| Fourmasters Limited | Manufacturing | 1987 |
| Foursquare Medical Ltd | Health & social care | 2014 |
| Fowey Shellfish Company Limited | Agriculture & fishing | 2012 |
| FOX Davies Fishing Ltd | Agriculture & fishing | 2017 |
| FOX Hollow (Bridgnorth Road) Management Company Limited | Real estate | 1985 |
| FOX Red Housing Solutions Ltd | Real estate | 2025 |
| Fox-Davies Arts Ltd | Administrative & support | 2017 |
| Foxbourne Limited | Administrative & support | 1984 |
| Foxcote Developments Limited | Administrative & support | 2021 |
| Foxcote Properties Ltd | Administrative & support | 2017 |
| Foxglove Courtyard Ltd | Real estate | 2022 |
| Foxholme Property Group Ltd | Real estate | 2025 |
| Foxwalks Kennels Limited | Other services | 2018 |
| FQ Software Services Ltd | Information & communication | 2025 |
| FR Event & Innovations Ltd | Administrative & support | 2025 |
| FR Hybrid Ltd | Administrative & support | 2024 |
| Frame & Design Architecture Ltd | Real estate | 2025 |
| Frames and Stories Ltd | Information & communication | 2025 |
| Francis Lettings Limited | Real estate | 2025 |
| Francis Oniel PVT Ltd | Wholesale & retail | 2020 |
| Frangoz Wolv Ltd | Hospitality | 2022 |
| Franics Ltd | Administrative & support | 2022 |
| Franida Ltd | Wholesale & retail | 2024 |
| Frank a Star Clearance Ltd | Construction | 2024 |
| Frank Andrew Limited | Health & social care | 2015 |
| Frank Excavations Limited | Construction | 2014 |
| Frank Recruitment Solutions Ltd | Administrative & support | 2023 |
| Frank Roberts Limited | Administrative & support | 2011 |
| Franklin Prince Ltd | Professional & scientific | 2020 |
| Frankotech Limited | Administrative & support | 2017 |
| Frankowski Real Estate Limited | Hospitality | 2025 |
| Franks Sauces Limited | Manufacturing | 2011 |
| Franshar Ltd. | Manufacturing | 2020 |
| Fraser Contracts Ltd | Construction | 2003 |
| Frat Logistics Ltd | Transport & logistics | 2026 |
| Fratelli Estates Ltd | Real estate | 2025 |
| Fraterdrive (Holdings) Limited | Professional & scientific | 2011 |
| Fraterdrive (P.A.S.) Limited | Health & social care | 1975 |
| Frederick Street (Realisations) Limited | | 1935 |
| Free Basis Consult Ltd | Professional & scientific | 2016 |
| Freedom Fostering Limited | Health & social care | 2002 |
| Freedom Organics (FO) CIC | Agriculture & fishing | 2024 |
| Freedom Path Education Ltd | Education | 2026 |
| Freedom Vehicle Contracts Limited | Financial services | 1998 |
| Freedommm Condiments and Seasonings Limited | Manufacturing | 2017 |
| Freeflow Estates Ltd. | Manufacturing | 1998 |
| Freeflow Holdings Limited | Professional & scientific | 2015 |
| Freelance GP Ltd | Health & social care | 2018 |
| Freeya Limited | Wholesale & retail | 2021 |
| Freezeright Ltd | Manufacturing | 2024 |
| Frequency Holdings Ltd | Manufacturing | 2026 |
| Fresh and Food Ltd | Wholesale & retail | 2020 |
| Fresh Coffee Shop (School Road) Limited | Hospitality | 2023 |
| Fresh Crust Limited | Hospitality | 2025 |
| Fresh Cuts Wolverhampton Ltd | Other services | 2023 |
| Fresh From Nature Limited | Manufacturing | 2017 |
| Fresh Look Wolves Ltd | Other services | 2024 |
| Fresh Perspectives LAB Limited | Real estate | 2020 |
| Fresh Wood Fire Pizza Company Ltd | Hospitality | 2023 |
| Fresh Xpress Limited | Wholesale & retail | 2019 |
| FRESH4YOU Limited | Wholesale & retail | 2003 |
| Freshdew Ltd | Wholesale & retail | 2016 |
| Fresher Face of Fostering Ltd | Information & communication | 2025 |
| Freshness Guaranteed Ltd | Hospitality | 2025 |
| Freshperspectivestrust | Hospitality | 2025 |
| Freshway Connect Limited | Wholesale & retail | 2020 |
| Freya Management Consulting Limited | Water & waste | 2024 |
| Frib Limited | Hospitality | 2014 |
| Friend Formation Limited | Professional & scientific | 2026 |
| Friendly Care Group Limited | Professional & scientific | 2009 |