| Fishers FM Limited | Other services | 2020 |
| Fishing Direct Ltd | Wholesale & retail | 2025 |
| Fit for Living Homes Ltd | Construction | 2026 |
| Fitera Limited | Information & communication | 2026 |
| Fittonium Limited | Information & communication | 2013 |
| Fitzsport Ltd | Wholesale & retail | 2019 |
| Five Stars Property Services Ltd | Real estate | 2024 |
| FIX IT Electrical Solutions Ltd | Energy | 2023 |
| Fixforce Ltd | Construction | 2025 |
| Fixing Smiles Ltd | Health & social care | 2021 |
| Fixme Home Improvements Limited | Other services | 2024 |
| FIZGT4 Limited | Real estate | 2023 |
| Fizzy Fish Properties Limited | Real estate | 2016 |
| FJK Traders Ltd | Water & waste | 2021 |
| Fkza Limited | Real estate | 2026 |
| Flagged Patriots Limited | Wholesale & retail | 2025 |
| Flair Accounting Limited | Professional & scientific | 2017 |
| Flames Curry House Limited | Hospitality | 2024 |
| Flamin' Grill Ltd | Hospitality | 2024 |
| Flamin’ Grill MCR Ltd | Hospitality | 2025 |
| Flavius- Transport Ltd | Transport & logistics | 2015 |
| Flawlessadon Ltd | Other services | 2023 |
| Fleetzy Ltd | Administrative & support | 2025 |
| Flexible Expertise North Wales Ltd | Administrative & support | 2019 |
| Flexidrive Rentals Limited | Administrative & support | 2025 |
| Flightfares Ltd | Wholesale & retail | 2026 |
| Floating Forms Limited | Information & communication | 2020 |
| Flonq Ltd | Wholesale & retail | 2021 |
| Flood Risk Consult Limited | Professional & scientific | 2024 |
| Flooring Matters Limited | Wholesale & retail | 2012 |
| Florry Care Ltd | Health & social care | 2024 |
| Flow Group Services Ltd | Transport & logistics | 2022 |
| Flowcaster Limited | Construction | 1991 |
| Flowers by Harris UK Ltd | Wholesale & retail | 2011 |
| Fluff Linen Limited | Wholesale & retail | 2026 |
| Flying Horse Traders Ltd | Wholesale & retail | 2022 |
| FM Consultancy & Services Ltd | Other services | 2017 |
| FM Data Privacy Ltd | Information & communication | 2024 |
| FM Estates & Letting Ltd | Real estate | 2022 |
| FM Global Vision Ltd | Construction | 2025 |
| Fmcg Consultants Ltd | Professional & scientific | 2020 |
| FMJ Financial Limited | Financial services | 2020 |
| FMM Investment Properties Limited | Real estate | 2025 |
| FNJ World Limited | Wholesale & retail | 2025 |
| FNS Foods Ltd | Hospitality | 2023 |
| FNZ Consulting Limited | Professional & scientific | 2026 |
| FNZ Packaging Ltd | Other services | 2020 |
| Foamworld Trade Limited | Wholesale & retail | 2024 |
| Focus Town Planning Limited | Professional & scientific | 2024 |
| Fofik CAD CAM CNC Limited | Manufacturing | 2024 |
| FOI Group Limited | Financial services | 2022 |
| FOI Holdings Limited | Real estate | 2020 |
| FOI Industry Limited | Wholesale & retail | 2012 |
| Fola Retail and Textiles Limited | Manufacturing | 2025 |
| Fold Boxes Ltd | Manufacturing | 2019 |
| Fone Arena Ltd | Wholesale & retail | 2024 |
| Fonetek Direct Ltd | Wholesale & retail | 2020 |
| Food Fusion Milnrow Ltd | Hospitality | 2024 |
| Food Sorcery Ltd | Hospitality | 2016 |
| Foodie World Ltd | Hospitality | 2023 |
| Foodservice Equipment Spares Limited | Wholesale & retail | 2018 |
| Foodxl Ltd | Hospitality | 2025 |
| Footasylum Brands Ltd | Wholesale & retail | 2017 |
| Footasylum Limited | Wholesale & retail | 2005 |
| Footex Limited | | 1984 |
| Footprints Community Care Limited | Health & social care | 2019 |
| Ford Parts Rochdale Ltd | Wholesale & retail | 2024 |
| Foredown Limited | Professional & scientific | 2000 |
| Forefront Logistics Ltd | Transport & logistics | 2008 |
| Forest Drapery Hardware UK Limited | Wholesale & retail | 2020 |
| Forged in Chaos Limited | Arts & recreation | 2026 |
| Format GG Events Limited | Health & social care | 2022 |
| Formed Concrete Basins Ltd | Manufacturing | 2019 |
| Formidable Capital Assets Limited | Administrative & support | 2005 |
| Forrest Fresh Foods Holding Limited | Financial services | 2018 |
| Forrest Fresh Foods Limited | Wholesale & retail | 2010 |
| Forrest Payroll Limited | Administrative & support | 2021 |
| Fortescue Smythe Ltd | Administrative & support | 2026 |
| Fortis Maintenance Solutions Ltd | Construction | 2025 |
| Fortis Trading Ltd | Wholesale & retail | 2010 |
| Fortress Group Northern Ltd | Construction | 2020 |
| Fortress Property (NW) Ltd | Real estate | 2025 |
| Fortune Property Ventures Ltd | Real estate | 2024 |
| Forza Car Detailing Ltd | Administrative & support | 2025 |
| Fountains & Features Ltd | Construction | 2011 |
| Four Roots Properties Ltd | Real estate | 2025 |
| Four Squares+ Ltd | Administrative & support | 2024 |
| Four Wood Estates Ltd | Financial services | 2021 |
| Fourth Property Co. Limited | Construction | 1992 |
| Fourway Projects NW Ltd | Construction | 2019 |
| Fourway Restoration NW Ltd | Construction | 2019 |
| Fouzian Ltd | Wholesale & retail | 2022 |
| Foxmore Engineering Ltd | Construction | 2007 |
| Foxro Properties Limited | Real estate | 2020 |
| Foxy Food Ltd | Wholesale & retail | 2025 |
| Fragrance HQ Ltd | Wholesale & retail | 2026 |
| Fraiche London Ltd | Wholesale & retail | 2025 |
| Fralex Care Services Ltd | Health & social care | 2025 |
| Frame 2 Rochdale Ltd | Arts & recreation | 2026 |
| Franchise Ventures Ltd | Wholesale & retail | 2024 |