| From Beyond the Movie Limited | Information & communication | 2023 |
| From Bristol With Love | Other services | 2014 |
| From Form C.I.C. | Arts & recreation | 2026 |
| From Here 2 Timbuktu Ltd | Administrative & support | 2008 |
| From Home Ltd | Wholesale & retail | 2026 |
| From Key to Key Ltd Ltd | Construction | 2020 |
| From the Ground UP Ltd | Extraterritorial | 2025 |
| From the Tribe Ltd | Manufacturing | 2019 |
| Frome Homes Limited | Construction | 2017 |
| Frome Ltd. | Real estate | 2026 |
| Frome Mill Farms Limited | Financial services | 2025 |
| Frome Valley Environmental Network CIC | Education | 2025 |
| Frome Valley Ltd | Wholesale & retail | 2020 |
| Frome Valley Osteopaths Limited | Other services | 2015 |
| Frome Valley Properties Ltd | Real estate | 2019 |
| Frome Valley Road Holdings Ltd | Financial services | 2024 |
| Fromeside Gymnastics Club (1987) Limited | Arts & recreation | 1987 |
| Fromeside Park Residents Association Limited | Other services | 1991 |
| Fromevale Consultancy Services Limited | Construction | 2003 |
| Fromhere Studio Ltd | Professional & scientific | 2025 |
| Frondescence Ltd | Professional & scientific | 2023 |
| Front Door Lettings Ltd | Real estate | 2024 |
| Front Foot Investments Limited | Financial services | 2013 |
| Front Garden Design Ltd | Extraterritorial | 2007 |
| Front Left Music Group Limited | Wholesale & retail | 2023 |
| Front Line Installations Limited | Construction | 2006 |
| Front ROW Roofing Ltd | Construction | 2021 |
| Frontal Developments South West Ltd | Construction | 2025 |
| Frontalis Ltd | Health & social care | 2019 |
| Frontier Branding Ltd | Professional & scientific | 2022 |
| Frontier Business Ltd | Wholesale & retail | 2021 |
| Frontier Resourcing Ltd | Administrative & support | 2020 |
| Frontiereco Limited | Manufacturing | 2024 |
| Frontline Assets Ltd | Real estate | 2024 |
| Froot Limited | Arts & recreation | 2025 |
| Fross Property Development Ltd | Extraterritorial | 2026 |
| Frost & Reed House Management Company Limited | Households | 1999 |
| Frost Wiltshire Member Limited | Professional & scientific | 2015 |
| Frosty Productions Limited | Information & communication | 2026 |
| Frosty Projects Limited | Construction | 2018 |
| Froth and Fries Ltd | Hospitality | 2024 |
| Frozen Gold Jewellers Ltd | Wholesale & retail | 2024 |
| FRP Construct Ltd | Construction | 2025 |
| FRR Developments Ltd | Construction | 2024 |
| Frtretail Ltd | Wholesale & retail | 2026 |
| FRU QR8 Limited | Wholesale & retail | 2025 |
| Fruit & VEG Land Ltd | Wholesale & retail | 2020 |
| Fruit Developments Limited | Real estate | 2006 |
| Fruit Rolls & Treats Ltd | Hospitality | 2026 |
| Fruitful Investments Limited | Households | 2006 |
| Fruitful Ventures Limited | Real estate | 2014 |
| Fruity Trees Limited | Wholesale & retail | 2021 |
| Frun Ltd | Administrative & support | 2025 |
| Frus Studio Ltd | Information & communication | 2018 |
| Fruta Limited | Wholesale & retail | 1994 |
| FRY Developments Limited | Construction | 2025 |
| FRY Estates Limited | Real estate | 2024 |
| FRY Roofing and Cladding Ltd | Construction | 2023 |
| Frycharm Limited | Households | 1979 |
| Fryhaus Ltd | Hospitality | 2024 |
| Frys Well Holdings Limited | Financial services | 2024 |
| Frys Well Property Company Limited | Real estate | 2024 |
| Fryz Easton Ltd | Hospitality | 2025 |
| Frêshare Limited | Professional & scientific | 2019 |
| FS Global Logistic Ltd | Wholesale & retail | 2025 |
| FS Honeycomb Limited | Information & communication | 2022 |
| FS Reno Ltd | Real estate | 2025 |
| FS4U Ltd | Financial services | 2019 |
| FSC Tech Ltd | Information & communication | 2025 |
| Fscss Ltd | Construction | 2018 |
| Fsct Ltd | Real estate | 2025 |
| FSD Consultancy Limited | Construction | 2013 |
| FSD Facilities Limited | Water & waste | 2017 |
| FSE Employee Trustee Limited | Extraterritorial | 2020 |
| FSE IP Ltd | Professional & scientific | 2020 |
| FSE Properties Ltd | Real estate | 2018 |
| FSL Construction Ltd | Extraterritorial | 2019 |
| Fsowe's Company Limited | Health & social care | 2023 |
| FSW Neuroradiology Limited | Health & social care | 2016 |
| FT Spaiugu Limited | Transport & logistics | 2019 |
| FTA Consulting Ltd | Professional & scientific | 2022 |
| FTC Automotives Ltd | Wholesale & retail | 2026 |
| Fudge 1967 Limited | Administrative & support | 2009 |
| Fuego Restaurant Group Ltd | Hospitality | 2024 |
| Fuel Derivates Trading Ltd | Wholesale & retail | 2023 |
| Fuel Poverty Action | Education | 2014 |
| Fuel Tank Media Limited | Information & communication | 2013 |
| Fueld Media Limited | Professional & scientific | 2019 |
| Fuerte Fisico Holdings Limited | Arts & recreation | 2026 |
| Fuerte Fisico Limited | Arts & recreation | 2025 |
| Fuhua Takeaway Limited | Hospitality | 2025 |
| Fuji Topco Limited | Financial services | 2022 |
| FUL Catering Ltd | Hospitality | 2025 |
| Ful:Ki Supplements Ltd | Manufacturing | 2021 |
| Fulcrum Projects Ltd | Professional & scientific | 2006 |
| Fulcrum Publishing Limited | Information & communication | 2015 |
| Fulfilled Glory Ltd | Health & social care | 2024 |
| Fulford Fish Bar Limited | Hospitality | 2022 |
| Fulford Investments Ltd | Real estate | 2019 |
| Fulford News Limited | Wholesale & retail | 2009 |