| F S Beauty Ltd | Other services | 2020 |
| F S Fabrications WY Ltd | Manufacturing | 2023 |
| F Sheikh Electrical Ltd | Construction | 2021 |
| F Star Fades Limited | Other services | 2023 |
| F!Rst Motors Ltd | Wholesale & retail | 2024 |
| F&D Finance Limited | Administrative & support | 2012 |
| F&D Motor Group Limited | Wholesale & retail | 2022 |
| F&G Builders Limited | Construction | 2025 |
| F&G Flooring Services Ltd | Construction | 2026 |
| F&N Management Ltd | Real estate | 2025 |
| F&N Resources Ltd | Professional & scientific | 2023 |
| F&Q Consultancies Ltd | Information & communication | 2026 |
| F&R Group Limited | Real estate | 2024 |
| F&S Communication Ltd | Transport & logistics | 2020 |
| F&S Rouge Ltd | Wholesale & retail | 2025 |
| F.A. Roper Limited | Wholesale & retail | 1943 |
| F.B. Fabrications Ltd | Manufacturing | 2020 |
| F.E.T.E Nexus Group Limited | Wholesale & retail | 2026 |
| F.L Logistics Ltd | Transport & logistics | 2016 |
| F.P. Khan Ltd | Health & social care | 2019 |
| F.R.C Automotive Ltd | Wholesale & retail | 2025 |
| F.U.D (Yorkshire) Limited | Wholesale & retail | 2011 |
| F1 Mobile Tyres Ltd | Wholesale & retail | 2020 |
| F1 Number Plate Limited | Wholesale & retail | 2018 |
| F11 HQ Limited | Hospitality | 2025 |
| F2 Autos Limited | Professional & scientific | 2022 |
| F2 Performance Limited | Wholesale & retail | 2013 |
| F5 Barlick Limited | Wholesale & retail | 2026 |
| F9 Connect Hub Ltd | Transport & logistics | 2025 |
| FA Emporium Ltd | Wholesale & retail | 2025 |
| FA Group Limited | Financial services | 2025 |
| FA Motors Limited | Wholesale & retail | 2023 |
| FA Outfit Limited | Wholesale & retail | 2019 |
| FA Recruitment Ltd | Administrative & support | 2019 |
| FAB Engineered Products Ltd | Manufacturing | 2022 |
| FAB Fountain Ltd | Hospitality | 2025 |
| FAB Healthcare Ltd | Health & social care | 2013 |
| FAB Motorhouse Ltd | Wholesale & retail | 2019 |
| Fabcomuk Ltd | Wholesale & retail | 2020 |
| Fabpay Limited | Information & communication | 2025 |
| Fabric Beds UK Limited | Manufacturing | 2019 |
| Fabric Fushion Ltd | Wholesale & retail | 2026 |
| Fabric Wholesalers Ltd | Wholesale & retail | 2012 |
| Fabricate (UK) Limited | Manufacturing | 1999 |
| Fabricism UK Limited | Information & communication | 2016 |
| Fabrics by Janan Limited | Wholesale & retail | 2025 |
| Fabrology Ltd | Wholesale & retail | 2021 |
| Fabtech Technologies UK Ltd | Manufacturing | 2017 |
| Fabworks Gate & Railings Ltd | Manufacturing | 2025 |
| Fadak Furniture Limited | Wholesale & retail | 2023 |
| Fagbe Limited | Real estate | 2022 |
| Fagben Limited | Real estate | 2022 |
| Fagborun Limited | Agriculture & fishing | 2020 |
| Fagley Carz Ltd | Transport & logistics | 2022 |
| Fagley Foods Ltd | Wholesale & retail | 2023 |
| Fagley Halal Butchers Ltd | Wholesale & retail | 2024 |
| Fagley Mini Market 119 Ltd | Wholesale & retail | 2024 |
| Fagley Mini Market Ltd | Wholesale & retail | 2019 |
| Fahad Enterprises Ltd | Wholesale & retail | 2001 |
| Fahad Letting Limited | Real estate | 2025 |
| Fahad Properties Ltd | Real estate | 2024 |
| Fahd Limited | Wholesale & retail | 2024 |
| Fahdcare Group Ltd | Health & social care | 2023 |
| Faheem's Fast Food Ltd | Hospitality | 2024 |
| Fahid Rehman Ltd | Administrative & support | 2016 |
| Fahim Anderson Accountants Ltd | Professional & scientific | 2016 |
| Faika Karim Birmingham Limited | Wholesale & retail | 2023 |
| Faika Karim Designs Limited | Wholesale & retail | 2013 |
| Fair Switch Ltd | Wholesale & retail | 2025 |
| Fair Tax International Limited | Professional & scientific | 2025 |
| Fair Value "UK" Ltd | Wholesale & retail | 2024 |
| Fairbank Lettings & Management Ltd | Real estate | 2023 |
| Fairbanks Construction Ltd | Construction | 2019 |
| Fairburn Developments Limited | Real estate | 2000 |
| Fairbuy Limited | Wholesale & retail | 2026 |
| Fairdeal (Bradford) Ltd | Wholesale & retail | 2017 |
| Fairfax Rental Properties Limited | Real estate | 2015 |
| Fairlady Furniture Ltd | Wholesale & retail | 1999 |
| Fairman Legal Ltd | Professional & scientific | 2023 |
| Fairmount Gate Properties Ltd | Real estate | 2020 |
| Fairtrade Alliance Ltd | Wholesale & retail | 2023 |
| Fairway & Co Investments Ltd | Real estate | 2023 |
| Fairway Access Hire Limited | Administrative & support | 2025 |
| Fairway Group Holdings Limited | Financial services | 2025 |
| Fairway Roofing Limited | Construction | 2025 |
| Fairway Wholesale Ltd | Wholesale & retail | 2019 |
| Fairways GAS Services Ltd | Construction | 2025 |
| Fairways SIM Golf Limited | Arts & recreation | 2026 |
| Fairweather Event Hall Ltd | Arts & recreation | 2012 |
| Fairweather Management Ltd | Real estate | 2021 |
| Fairweather Windows Limited | Construction | 2025 |
| Faisal Layton Food Store Ltd | Wholesale & retail | 2026 |
| Faisal Mahmood Holdings Ltd | Financial services | 2019 |
| Faisal Travel Ltd | Transport & logistics | 2024 |
| FAISALAHMED2222 Limited | Administrative & support | 2025 |
| Faith and Bones Limited | Information & communication | 2013 |
| Faith in Communities CIC | Health & social care | 2021 |
| Faith Intervention Group Services (Figs) Limited | Health & social care | 2019 |
| Faith&Jj Dropbox Limited | Wholesale & retail | 2023 |
| Faiz & Sons (Yorkshire) Ltd | Wholesale & retail | 2023 |