| Frank Anthony Ltd | Administrative & support | 2000 |
| Franklin Allan Property Services Ltd | Real estate | 2022 |
| Fraqter Ltd | Information & communication | 2022 |
| Fraudbloqr Limited | Manufacturing | 2025 |
| Fred Page Electrical Limited | Manufacturing | 2026 |
| Free Your Mind of Fears Ltd | Other services | 2022 |
| Freeair Services Limited | Energy | 2005 |
| Freeda UK Limited | Information & communication | 2019 |
| Freedom Air Conditioning Limited | Administrative & support | 2008 |
| Freedom Boat Club UK, Limited | Professional & scientific | 2001 |
| Freedom Commercial Properties LLP | | 2021 |
| Freedom Education Ltd | Education | 2024 |
| Freedom IOW Ltd | Health & social care | 2001 |
| Freedom Presenting Ltd | Education | 2024 |
| Freedom Property (Hampshire) Limited | Real estate | 2011 |
| Freehold Homes Limited | Real estate | 2019 |
| Freelance Design Partnership Limited | Arts & recreation | 2003 |
| Freeman and SON Electrical Limited | Construction | 2024 |
| Freemantle Business Centre Management Company Limited | Real estate | 1988 |
| Freemantle Church of England Community Academy | Education | 2011 |
| Freemantle PAT Testing Ltd | Professional & scientific | 2025 |
| Freemantle Property Solutions Ltd | Real estate | 2021 |
| Freeston Water Treatment Limited | Water & waste | 1986 |
| Freestyle Web Design Limited | Information & communication | 2014 |
| Freethevinyl Limited | Information & communication | 2018 |
| Freeway Commercials Ltd | Wholesale & retail | 2024 |
| Freewheeler Autos Limited | Wholesale & retail | 2003 |
| Freight Trans Ltd | Transport & logistics | 2017 |
| Frenz Enterprises 03 Ltd | Hospitality | 2024 |
| Frenz Enterprises 04 Ltd | Hospitality | 2024 |
| Frenz Enterprises Ltd | Hospitality | 2023 |
| Frequency South UK Events Ltd | Arts & recreation | 2024 |
| Freremount Limited | Health & social care | 2014 |
| Fresh Air Flow Ltd | Construction | 2024 |
| Fresh Bunz Limited | Hospitality | 2024 |
| Fresh Driving Limited | Public administration | 2025 |
| Fresh India Ltd | Wholesale & retail | 2022 |
| Fresh Mind Learning Ltd | Professional & scientific | 2019 |
| Fresh Mortgage Solutions (UK) Limited | Financial services | 2007 |
| Fresh Plate Ltd | Hospitality | 2020 |
| Fresh Southampton Limited | Hospitality | 2017 |
| Fresh the Barbers Limited | Other services | 2014 |
| Freshair Salon Limited | Other services | 2018 |
| Fresher Products Limited | Wholesale & retail | 2013 |
| Freshhaven Property Management Limited | Households | 1999 |
| Freshie Farm Ltd | Agriculture & fishing | 2025 |
| Freshman & Stacey Services Ltd | Administrative & support | 2010 |
| Freshwater Court Management Company Ltd | Households | 1998 |
| Fresko Market Ltd | Wholesale & retail | 2025 |
| Fresty Ltd | Transport & logistics | 2025 |
| Friary Gate Limited | Real estate | 2021 |
| Friendly Bears Ltd | Administrative & support | 2016 |
| FRK Solutions Ltd | Information & communication | 2026 |
| Frobisher Bccl Property Limited Partnership I | | 2006 |
| Frobisher Court (Marchwood) Management Company Limited | Households | 1994 |
| Frog Consultants LLP | | 2023 |
| Frohock Limited | Financial services | 2013 |
| From 12 Yards Limited | Professional & scientific | 2021 |
| From the Makers of Limited | Other services | 1993 |
| Frondial Ltd | Professional & scientific | 2022 |
| Front Communications Limited | Information & communication | 2009 |
| Front ROW Construction and Management Limited | Construction | 2018 |
| Front ROW Construction and Management Services Ltd | Construction | 2024 |
| Front ROW Intelligence South Limited | Administrative & support | 2021 |
| Frontier Investment Developments Ltd | Hospitality | 2006 |
| Frontier Management Consultants Limited | Real estate | 1997 |
| Frontier Property Investments Limited | Real estate | 2004 |
| Frontline Builder Ltd | Construction | 2026 |
| Frontline Concrete Solution Limited | Construction | 2019 |
| Frontline Manufacturing Ltd | Manufacturing | 2023 |
| Frontline Security Ltd | Administrative & support | 2023 |
| Frontsmart Property Management Limited | Households | 1989 |
| Frost Creative Limited | Information & communication | 2014 |
| Frost Jones Limited | Households | 2026 |
| Frostair Cooling Ltd | Professional & scientific | 2022 |
| FRS Transport Ltd | Transport & logistics | 2022 |
| Fruitful Careers Limited | Administrative & support | 2023 |
| Fruitful Studio Ltd | Administrative & support | 2016 |
| Frys of Gosport Ltd | Financial services | 2019 |
| FS Building Services Ltd | Construction | 2015 |
| FS Events Ltd | Administrative & support | 2023 |
| FS07BAK Ltd | Public administration | 2025 |
| FSA33 Limited | Hospitality | 2024 |
| FSB Estates Ltd | Real estate | 2020 |
| Fsd(Property) Ltd | Real estate | 2022 |
| FSH Star Fashion Ltd | Wholesale & retail | 2021 |
| FSR Cafe Limited | Hospitality | 2022 |
| FSR Contractors Ltd | Construction | 2024 |
| FT PAY Limited | Administrative & support | 2013 |
| FT Resins Limited | Wholesale & retail | 2025 |
| FT Security Systems Limited | Information & communication | 2020 |
| FTL Systems UK Limited | Information & communication | 1998 |
| Fubest Ltd | Manufacturing | 2026 |
| Fuchi Limited | Hospitality | 2019 |
| Fudzy Ltd | Wholesale & retail | 2025 |
| Fuel Hair Mechanics Limited | Other services | 2015 |
| Fuelsmart Technologies Limited | Construction | 2014 |
| Fuente Consulting Ltd | Professional & scientific | 2020 |
| Full Beans Cycling Company Ltd | Wholesale & retail | 2023 |
| Full Monty Nights Limited | Arts & recreation | 2012 |