| Ferguson Resource Group Ltd | Professional & scientific | 2021 |
| FGH Global Limited | Public administration | 2024 |
| FGH Group Limited | Public administration | 2017 |
| FGH Training Limited | Education | 1992 |
| Fghsecurity Ltd | Public administration | 2003 |
| Fibrestone Insulation Products Limited | Extraterritorial | 2015 |
| Film Culture Limited | Professional & scientific | 2017 |
| FIN OBI Consulting Limited | Professional & scientific | 2025 |
| Final Form Entertainment Ltd | Arts & recreation | 2019 |
| Finchfive LOW Mill (Caton) Limited | Administrative & support | 1991 |
| Fingal Wind Limited | Energy | 2014 |
| Fire AI Limited | Information & communication | 2026 |
| Firealarmed Ltd | Public administration | 2024 |
| Firedough Limited | Hospitality | 2022 |
| First Choice Roofing & Building Repairs Ltd | Construction | 2026 |
| First Digital Media Limited | Information & communication | 2014 |
| First Fairfield Consulting Company Limited | Professional & scientific | 2015 |
| First Impressions Theatre Limited | Arts & recreation | 2024 |
| Fisher Wrathall Ltd | Real estate | 2018 |
| Fitness Formation Holdings Limited | Financial services | 2024 |
| Fitness Formation Limited | Arts & recreation | 2024 |
| Flaglake Limited | Real estate | 1999 |
| FLB Innovations Limited | Real estate | 2025 |
| Fleet Square Limited | Real estate | 2012 |
| Fleets Farm Equestrian Events Ltd | Education | 2025 |
| Flexeebiz Solutions Limited | Professional & scientific | 2025 |
| Floorstyle (Lancaster) Ltd | Construction | 2025 |
| Floorworld North West Ltd | Wholesale & retail | 2013 |
| Flossi PAY Limited | Information & communication | 2022 |
| Flower B Florist Weddings Limited | Wholesale & retail | 2023 |
| Flying AXE Factory Ltd | Arts & recreation | 2024 |
| Flynns Caravans Limited | Wholesale & retail | 2024 |
| FNZ Properties Limited | Real estate | 2024 |
| Fogg Holdings Ltd | Real estate | 2026 |
| Folk Co Working Ltd | Other services | 2023 |
| Fonezone Khan Limited | Wholesale & retail | 2025 |
| Food (Kendal) Ltd | Wholesale & retail | 2011 |
| Food Como Ltd | Hospitality | 2025 |
| Food Fanatics Ltd | Hospitality | 2024 |
| Food Safety Direct Limited | Wholesale & retail | 2004 |
| Footlight Performance Academy Limited | Arts & recreation | 2025 |
| Forbidden Oak Games Limited | Information & communication | 2022 |
| Foreburn Limited | Agriculture & fishing | 1963 |
| Forge Bridge Association Limited | Households | 1997 |
| Forge Conditioning Ltd | Arts & recreation | 2023 |
| Forgewood Plant Ltd | Administrative & support | 2011 |
| Fortia Group Ltd. | Real estate | 2015 |
| Fortis Advisory Services Limited | Professional & scientific | 2025 |
| Forton Glass Limited | Wholesale & retail | 2019 |
| Forty Five Events Ltd | Hospitality | 2025 |
| Forty Five Records Limited | Wholesale & retail | 2023 |
| Forward 2020 Ltd | Administrative & support | 2010 |
| Forwardsafe Technologies Limited | Manufacturing | 2015 |
| Foursee Consulting Limited | Professional & scientific | 2024 |
| Foursee Financial Planning Limited | Financial services | 2019 |
| Fowler Inkeeping Solutions Limited | Hospitality | 2025 |
| FOX Dance Academy Limited | Arts & recreation | 2023 |
| Foxholes Country Pursuits Limited | Wholesale & retail | 2004 |
| Foxy Bunny Ltd | Wholesale & retail | 2023 |
| Framed Limited | Construction | 2003 |
| Francesedwards Ltd | Professional & scientific | 2023 |
| Frank Holmes Limited | Construction | 2005 |
| Franklin Convenience Store Ltd | Wholesale & retail | 2026 |
| Franklin Samuels Ltd | Education | 2025 |
| Frcr Tutorials Limited | Health & social care | 2013 |
| Fresh Luxe Laundry Ltd | Other services | 2024 |
| Friendly Way Productions Ltd | Information & communication | 2022 |
| Frontline First AID Ltd | Wholesale & retail | 2025 |
| FSD Commerce Ltd | Information & communication | 2025 |
| FSG Consulting Limited | Professional & scientific | 2019 |
| FTB Coffee Ltd | Wholesale & retail | 2023 |
| Fuery Services UK Limited | Wholesale & retail | 2007 |
| Full House Lancaster Limited | Hospitality | 2019 |
| Full Moon House Limited | Hospitality | 2017 |
| Full Spectrum Testing Ltd | Professional & scientific | 2022 |
| Fundles Ltd | Wholesale & retail | 2023 |
| Furnace Barn Nursery Limited | Health & social care | 2012 |
| Furness Fish Markets Limited | Wholesale & retail | 2003 |
| Furness Winding Company Limited | Manufacturing | 1979 |
| Furst Technologies Limited | Manufacturing | 2020 |
| Fusion by Sanah Limited | Manufacturing | 2025 |
| Fusion Innovations Limited | Professional & scientific | 2009 |
| Fusionic Limited | Information & communication | 2000 |
| Future Flowers (North) Limited | Professional & scientific | 2012 |
| Future Flowers Ltd | Professional & scientific | 2008 |
| Future Mainframe Tech Limited | Information & communication | 2025 |
| Future Rail Ltd | Professional & scientific | 2018 |
| Future Rural Developments Limited | Real estate | 2022 |
| Fuuse Limited | Information & communication | 2016 |
| Fylde Drives & Patios Limited | Administrative & support | 2024 |
| Fylde Parks Ltd | Hospitality | 2023 |
| G & D Plant Services Limited | Manufacturing | 2019 |
| G & J Taylor Limited | Professional & scientific | 2003 |
| G a Tostevin Properties Limited | Real estate | 2023 |
| G Dutton Design Ltd | Manufacturing | 2011 |
| G Mackereth & SON Limited | Construction | 2013 |
| G S Services (Northwest) Limited | Construction | 2011 |
| G W Whitwell Limited | Agriculture & fishing | 2002 |
| G.B. Properties (Lancaster) Limited | Real estate | 1998 |
| G.Omowele Tradehouse Ltd | Real estate | 2025 |