| Field Property Development Ltd | Real estate | 2022 |
| Field Stays Ltd | Real estate | 2022 |
| Fieldform Limited | Construction | 2012 |
| Fieldways RTM Company Limited | Households | 2025 |
| Fifty Four to Sixty Upton Crescent Limited | Hospitality | 2002 |
| FIG Holdings Ltd | Transport & logistics | 2019 |
| Fight Hub Basingstoke Ltd | Arts & recreation | 2023 |
| Fight Shack Limited | Education | 2016 |
| Fighub Ltd | Information & communication | 2026 |
| Figita Ltd | Health & social care | 2014 |
| Figo Services Limited | Health & social care | 2005 |
| Figurefox Co SEC Ltd | Professional & scientific | 2016 |
| Figurefox Ltd | Professional & scientific | 2009 |
| Finascend Limited | Professional & scientific | 2018 |
| Fincch Ltd | Financial services | 2014 |
| Findandseek Limited | Administrative & support | 2018 |
| Fineprint (Basingstoke) Limited | Information & communication | 1999 |
| Fineprint Solutions Limited | Manufacturing | 2026 |
| Finn O’Shea Ltd | Wholesale & retail | 2023 |
| Fiona Catherine Ltd | Manufacturing | 2025 |
| Fire Skills Limited | Administrative & support | 2006 |
| Fireblade Associates Limited | Professional & scientific | 2016 |
| Firestorm Trading Ltd. | Wholesale & retail | 2012 |
| Firma Projects Ltd | Construction | 2024 |
| First AUR Trans Ltd | Transport & logistics | 2025 |
| First Flame Group Ltd | Construction | 2025 |
| First Place Developments Limited | Real estate | 2021 |
| First Place Nurseries Limited | Education | 2005 |
| First Wave Development Limited | Construction | 2024 |
| Fishermens Peep Limited | Hospitality | 2022 |
| Fitbanker Limited | Education | 2015 |
| Fitcardiology Ltd | Health & social care | 2025 |
| Fitfeet Orthopaedic Solutions Ltd | Wholesale & retail | 2024 |
| Five Under Golf Limited | Education | 2025 |
| FIX Plumbing and Heating Ltd | Construction | 2021 |
| FIX Point Engineering 2024 Ltd | Construction | 2024 |
| FIX Point Engineering Ltd | Construction | 2019 |
| Fizl Ltd | Information & communication | 2016 |
| FJR Associates Limited | Professional & scientific | 2019 |
| FL Roofing Services Limited | Construction | 2024 |
| Flanders Scientific UK Limited | Information & communication | 2022 |
| Flashetts & Quidhampton Mill Conservation Area Ltd | Agriculture & fishing | 2020 |
| Flawlessplastering Limited | Construction | 2025 |
| Flax Healthcare Ltd | Health & social care | 2020 |
| Fleet Carpentry Services Ltd | Construction | 2024 |
| Fleet Managers Friend Ltd | Administrative & support | 2014 |
| Fleet-Chapman M Limited | Wholesale & retail | 2016 |
| Fleetcliff (Basingstoke) Limited | Real estate | 2009 |
| Fletcher Consultancy Limited | Transport & logistics | 2019 |
| Flexflowapp Ltd | Information & communication | 2026 |
| Flexibeau Care Limited | Professional & scientific | 2019 |
| Flintstone Estates LLP | | 2005 |
| FLO Courier Ltd | Transport & logistics | 2021 |
| Flock Painting & Decorating Ltd | Construction | 2023 |
| Florentina Transport Limited | Transport & logistics | 2025 |
| Florin Ilinca Trans Limited | Transport & logistics | 2019 |
| Flortec 25 Limited | Construction | 2019 |
| Flortec Limited | Construction | 2009 |
| Flossyandco Ltd | Wholesale & retail | 2024 |
| Flower Brazilian Fashion Ltd | Wholesale & retail | 2025 |
| Flowscreeding Services Ltd | Construction | 2011 |
| Flynnso Ltd | Professional & scientific | 2025 |
| FM Driving Solutions Ltd | Transport & logistics | 2018 |
| FM360 Ltd | Construction | 2024 |
| Focus Driving Ltd | Transport & logistics | 2017 |
| Focus-On- Care Limited | Health & social care | 2018 |
| Follett-Smith Consultants Limited | Professional & scientific | 2010 |
| Fonseca Fitness Ltd | Other services | 2020 |
| Fonseca Wellbeing Ltd | Arts & recreation | 2022 |
| Food IS Life Limited | Professional & scientific | 2017 |
| Foodtech Ltd | Professional & scientific | 2016 |
| Foody Parrot Ltd | Wholesale & retail | 2025 |
| Footnote Podiatry Ltd | Health & social care | 2026 |
| Footy Skills 4 Kids Clubs Ltd | Arts & recreation | 2022 |
| Footy Skills 4 Kids Schools Ltd | Education | 2026 |
| Force 4 Events Ltd | Administrative & support | 2024 |
| Force for Growth Ltd | Information & communication | 2020 |
| Forefront Staffing Limited | Administrative & support | 2026 |
| Forest Driveways Ltd | Construction | 2013 |
| Forest Stump Ltd | Agriculture & fishing | 2019 |
| Forever Sweet Ltd | Wholesale & retail | 2025 |
| Forge Enterprises Limited | Hospitality | 1993 |
| Forks & Spoons Ltd | Hospitality | 2020 |
| Form & Flame Ltd | Agriculture & fishing | 2022 |
| Formation Consulting Engineers Ltd | Professional & scientific | 2012 |
| Forsey Human Factors Ltd | Professional & scientific | 2013 |
| Fortbrand Holdco UK Limited | Administrative & support | 2023 |
| Fortbrand UK Limited | Manufacturing | 2023 |
| Forte Recruitment Solutions Ltd | Administrative & support | 2020 |
| Fortem Financial Management Limited | Financial services | 2017 |
| Fortigo Ltd | Transport & logistics | 2017 |
| Fortis Developments (South) Limited | Construction | 2015 |
| Fortis Lease UK Ltd | Financial services | 1985 |
| Fortitude Initiative Ltd | Administrative & support | 2024 |
| Fortius Bidco Group Limited | Financial services | 2018 |
| Fortius VA Limited | Administrative & support | 2007 |
| Fortuna Installations Limited | Administrative & support | 2009 |
| Forty Eight Queens Road Management Co Limited | Households | 2015 |
| Forward Insight Ltd | Information & communication | 2014 |
| Forward Thinking Event Services Ltd | Extraterritorial | 2015 |