| Fisher Logistics Ltd | Transport & logistics | 2010 |
| Fisherman Burnley Limited | Hospitality | 2026 |
| Fisherman Catch Limited | Hospitality | 2021 |
| Fitness Education (Burnley) Ltd | Education | 2023 |
| Fitra Holdings Limited | Financial services | 2025 |
| Five Reasons Limited | Other services | 2016 |
| Five Star Chicken Ltd | Hospitality | 2024 |
| Five Thousand Fundraising Ltd | Professional & scientific | 2025 |
| Fixwell Appliances Ltd | Other services | 2025 |
| FJA Holdings Limited | Professional & scientific | 2020 |
| Fjallpath Limited | Wholesale & retail | 2025 |
| FJN Civil Engineering and Surveying Limited | Construction | 2024 |
| FK Building and Contractors Ltd | Construction | 2024 |
| Flagship Digital Marketing Ltd | Professional & scientific | 2019 |
| Flairspark Holdings Ltd | Wholesale & retail | 2025 |
| Flamemanor Developments Ltd | Construction | 2010 |
| Flamemanor Estates Limited | Real estate | 2019 |
| Flamemanor Ltd | Construction | 2022 |
| Fleamedia Limited | Information & communication | 2026 |
| Fleming & Howland Ltd. | Manufacturing | 2002 |
| Flight Logistics Ltd | Information & communication | 2025 |
| Flight Night Ltd | Hospitality | 2025 |
| Flint and Lewis Property Ltd | Real estate | 2023 |
| Flocho Heaven Ltd | Other services | 2025 |
| Flocontrol Ltd | Wholesale & retail | 2009 |
| Floodsafe Projects Limited | Construction | 2013 |
| Floorzaway Ltd | Construction | 2026 |
| Florence North Limited | Real estate | 2025 |
| Floryn Limited | Transport & logistics | 2002 |
| Flow Construction Solutions Limited | Construction | 2013 |
| Flow Therm Ltd | Construction | 2019 |
| Flowcon Analytics Limited | Professional & scientific | 2023 |
| Flowcon Limited | Professional & scientific | 2002 |
| Floyd Holdings Limited | Financial services | 2023 |
| Floyd Property Investments Limited | Real estate | 2016 |
| Fluffysnake TV Ltd | Information & communication | 2024 |
| FLY First Limited | Extraterritorial | 2013 |
| Flynn Consultants Ltd | Construction | 2023 |
| FMP Lettings Ltd | Real estate | 2021 |
| FMP Rentals 1 Limited | Real estate | 2017 |
| FMP Rentals 2 Limited | Real estate | 2017 |
| FMP Rentals 3 Ltd | Real estate | 2023 |
| FMP Rentals Limited | Real estate | 2018 |
| Fmph Ltd | Real estate | 2022 |
| Focus Business Communications Limited | Information & communication | 2003 |
| Focus OFF Licence Ltd | Wholesale & retail | 2011 |
| Folie À Deux Studio Limited | Information & communication | 2025 |
| Follies Kebab House Ltd | Hospitality | 2023 |
| Food Safety Pro Ltd | Professional & scientific | 2024 |
| Football Zone CIC | Arts & recreation | 2023 |
| Footy Zone FC CIC | Other services | 2024 |
| Footy Zone Ltd | Arts & recreation | 2021 |
| Forecaster Ltd | Professional & scientific | 2026 |
| Forensitag Ltd | Information & communication | 2025 |
| Forge Exhaust & Tyres Ltd | Wholesale & retail | 2018 |
| Forge MOT & Tyres Ltd | Wholesale & retail | 2017 |
| FORKLIFT4U Training Ltd | Education | 2026 |
| Fort Vale Engineering Limited | Manufacturing | 1967 |
| Fort Vale Foundation | Health & social care | 2016 |
| Fort Vale Limited | Professional & scientific | 1992 |
| Fort Vale Nuclear Limited | Manufacturing | 2008 |
| Fortress Wrought Iron Limited | Manufacturing | 2002 |
| Foster & Walsh Architectural Services Ltd | Professional & scientific | 2002 |
| Four Corners of a Square Limited | Real estate | 2025 |
| Four Seasons Conservatories (Northwest) Ltd | Other services | 2019 |
| Fourstones Holdings Limited | Real estate | 2020 |
| Francescos Burnley Ltd | Hospitality | 2024 |
| Francis Brothers Limited | Administrative & support | 1939 |
| Francis Searchlights Limited | Manufacturing | 1990 |
| Frank Roberts (Nelson) Limited | Wholesale & retail | 1966 |
| Frcs Group Ltd | Administrative & support | 2023 |
| Freckle Life Limited | Information & communication | 2003 |
| Freddy's Chicken Rawtenstall Ltd | Hospitality | 2018 |
| Freddy's Play Kingdom Limited | Arts & recreation | 2012 |
| Free Domestics CIC | Wholesale & retail | 2025 |
| Freegate Metal Products Limited | Manufacturing | 1969 |
| Freewebstore Ltd | Information & communication | 2008 |
| French Kiss Aesthetics Ltd | Other services | 2019 |
| Frentech Components Limited | Wholesale & retail | 2017 |
| Fresh Bins (NW) Ltd | Other services | 2008 |
| Freshcoat Coatings Ltd | Construction | 2025 |
| Freshwater Habits Limited | Wholesale & retail | 2024 |
| Friction Components and Systems Limited | Other services | 1981 |
| Friden INT Limited | Wholesale & retail | 2025 |
| Frimovel Holdings Limited | Professional & scientific | 2020 |
| Frimovel UK Limited | Construction | 2008 |
| Fulcrum Property Solutions Ltd | Real estate | 2016 |
| Fulton Commercial Limited | Real estate | 2019 |
| FUN Motor Group Limited | Wholesale & retail | 2016 |
| Funkon Ltd | Wholesale & retail | 2016 |
| Funnel Empire Ltd | Other services | 2017 |
| Furnisource Wholesale Limited | Wholesale & retail | 2025 |
| Furniture Matters Limited | Extraterritorial | 2013 |
| Furniture Supersave Ltd | Wholesale & retail | 2023 |
| Fuse Group Limited | Professional & scientific | 2013 |
| Fusion Developments & Electrical Services Ltd | Construction | 2014 |
| Fusion Engineering (Staffordshire) Ltd | Manufacturing | 2014 |
| Fusion MIX Ltd | Hospitality | 2024 |
| Futaba Manufacturing U.K. Limited | Manufacturing | 2000 |
| Future Developments (NW) Ltd | Construction | 2013 |