| FAP2 Limited | Real estate | 2026 |
| FAR FEW Giants Limited | Information & communication | 2017 |
| FAR South Carpentry Ltd | Manufacturing | 2020 |
| Farnham Town Football Club 1906 Limited | Arts & recreation | 2026 |
| Farrowgate Limited | Households | 1977 |
| Farsight Land Surveys Ltd | Construction | 2023 |
| Fascia World Home Improvements Ltd | Construction | 2021 |
| Fast Aviation Limited | Manufacturing | 2013 |
| FB Heliservices Limited | Manufacturing | 2001 |
| FBA Associates Limited | Wholesale & retail | 2025 |
| FCL Global Exports Limited | Information & communication | 2025 |
| Feathr Productions Limited | Information & communication | 2025 |
| Feet Haven Ltd | Public administration | 2025 |
| FEF Flooring Ltd | Wholesale & retail | 2023 |
| Felixstowe Driver Recruitment Limited | Transport & logistics | 2012 |
| Felton & Farnworth Limited | Administrative & support | 2007 |
| Feminine Wear Ltd | Wholesale & retail | 2017 |
| Ferchau Limited | Professional & scientific | 2011 |
| Fidem Finance Limited | Real estate | 2019 |
| Fidget Heaven Ltd | Wholesale & retail | 2026 |
| Field Force Solutions Limited | Information & communication | 1995 |
| Fillybrook Fields Limited | Hospitality | 2018 |
| Film IT Productions Ltd | Information & communication | 2020 |
| Find Local Careers Limited | Administrative & support | 2022 |
| Fine & Country Christchurch Ltd | Real estate | 2020 |
| Fineday Agency Limited | Education | 2019 |
| Finest Rentals Marbella Ltd | Real estate | 2024 |
| Fire Air Sound Thermal Inspections Ltd | Public administration | 2021 |
| Fireplace Shop 2011 Ltd | Other services | 2011 |
| First Buildings Ltd | Real estate | 2024 |
| First Choice Spinning Limited | Professional & scientific | 2011 |
| Fitter Stock Ltd | Professional & scientific | 2017 |
| Fitzpatrick Brickwork Contractors Limited | Construction | 2009 |
| Flair Digital Marketing Limited | Information & communication | 2021 |
| Flair Interiors Ltd | Wholesale & retail | 2010 |
| Flexiheat UK Ltd | Manufacturing | 2016 |
| Flintlock Group Limited | Other services | 2023 |
| Float the Boat Ltd | Arts & recreation | 2010 |
| Floe Editing Ltd | Education | 2019 |
| Flotted Ltd | Manufacturing | 2023 |
| Flourish in Nature CIC | Health & social care | 2023 |
| Flowrite Drainage Ltd | Water & waste | 2024 |
| FLY With ME Aviation Limited | Transport & logistics | 2012 |
| Flyhawk Ltd | Wholesale & retail | 2020 |
| Flynn Decorating Ltd | Construction | 2025 |
| Foalwise Limited | Households | 1979 |
| Focus on Animal Law Ltd | Education | 2017 |
| Focus Services & Technologies Ltd | Administrative & support | 2024 |
| Focus Venue Finders Limited | Administrative & support | 2011 |
| Folium and Flos Plants Ltd | Wholesale & retail | 2019 |
| Foodtrux Ltd | Hospitality | 2019 |
| Foord Electrical Ltd | Construction | 2024 |
| Foot Inc. Limited | Health & social care | 2002 |
| Force ALE Ltd | Hospitality | 2025 |
| Foreman Creative Ltd | Manufacturing | 2024 |
| Forest Decking Ltd | Manufacturing | 2019 |
| Forest Equine Therapy Ltd | Health & social care | 2025 |
| Forest Whole Foods Holdings Ltd | Financial services | 2024 |
| Forest Whole Foods Limited | Wholesale & retail | 2016 |
| Forest Whole Foods Wholesale Ltd | Extraterritorial | 2024 |
| Forestedge Pensions Services Limited | Financial services | 2024 |
| Forestforward Limited | Real estate | 2019 |
| Forever Consultancy Ltd | Professional & scientific | 2024 |
| Fortune Competitions Ltd | Information & communication | 2025 |
| Four Acre Homes Limited | Real estate | 2022 |
| Four Winds (Sandbanks) Property Company Limited | Households | 1977 |
| Fowey Harbour Hotel Limited | Hospitality | 2018 |
| FOX Pond Consulting Ltd | Professional & scientific | 2024 |
| Foxvest LLP | | 2015 |
| FR Aviation Limited | Transport & logistics | 1965 |
| FR Carpentry & Build Ltd | Construction | 2022 |
| Fracar Enterprises Ltd | Arts & recreation | 2010 |
| Francesca Grange Flat Management Company Limited | Households | 1976 |
| Frankenfest C.I.C. | Arts & recreation | 2019 |
| Franlynn Co Ltd | Real estate | 2004 |
| Frantra Limited | Real estate | 2015 |
| Fred Lucas Building Services Limited | Construction | 2015 |
| Freeman Telecom Limited | Information & communication | 2006 |
| Frenchman in the Kitchen Limited | Hospitality | 2018 |
| Fresh Garage Services Ltd | Wholesale & retail | 2022 |
| Frettens LLP | | 2006 |
| From North END Farm Community Interest Company | Education | 2025 |
| From Scratch Control Systems Limited | Information & communication | 1999 |
| Front Bike Hire Limited | Other services | 2025 |
| Fruishion Limited | Wholesale & retail | 2008 |
| Ftmr Ltd | Wholesale & retail | 2023 |
| Fuel HQ Ltd | Health & social care | 2020 |
| Fulcrum Data Systems Limited | Information & communication | 2018 |
| Fulcrum Initiative Ltd | Professional & scientific | 2021 |
| Full House Marketing Ltd | Professional & scientific | 2023 |
| Full Send CF Ltd | Arts & recreation | 2026 |
| Fuller Clarendon Limited | Water & waste | 1986 |
| Functional Fitness Christchurch Ltd | Arts & recreation | 2024 |
| Funkydubz Limited | Wholesale & retail | 2010 |
| Furneaux Builders Limited | Construction | 2005 |
| G & F Building & Restoration Ltd | Construction | 2000 |
| G Sinden Consult Limited | Professional & scientific | 2010 |
| G-Tech UK Consulting Limited | Information & communication | 2009 |
| G. & N. International Limited | Transport & logistics | 1987 |
| G.A. Joynson Ltd | Construction | 1998 |