| Fairways (Bedford) Management Company Limited | Households | 2009 |
| Faith & Saffron Ltd | Wholesale & retail | 2026 |
| Faith 21 Ltd | Wholesale & retail | 2020 |
| Faizus Limited | Information & communication | 2019 |
| Falaaq Limited | Real estate | 2026 |
| Falcon Business Ltd | Construction | 2024 |
| Falcon Inc Management Ltd | Transport & logistics | 2025 |
| Falcon Secure Ltd | Information & communication | 2026 |
| Falcon Way Garston Management Co. Limited | Households | 1991 |
| Falconbrook Limited | Real estate | 2011 |
| Falconside Management Limited | Households | 1970 |
| Falling Doors Productions Ltd | Information & communication | 2024 |
| Fame Multi-Concept Limited | Wholesale & retail | 2026 |
| Familea Ltd | Information & communication | 2025 |
| Family Housing Partners Limited | Real estate | 2008 |
| Family Support Hub CIC | Education | 2023 |
| Famok Limited | Wholesale & retail | 2020 |
| Famzie Ltd | Transport & logistics | 2020 |
| Fancyfry Ltd | Hospitality | 2026 |
| Fanfare Estates Limited | Households | 1993 |
| Fanuel Property Limited | Real estate | 2024 |
| FAP Scaffolding Ltd | Construction | 2026 |
| Faradola Ltd | Health & social care | 2022 |
| Farhambuz Limited | Wholesale & retail | 2017 |
| Farhamriz Limited | Real estate | 2020 |
| Farm and Fashion Ltd | Wholesale & retail | 2025 |
| Farmhaulage Ltd | Agriculture & fishing | 2025 |
| Fasha Hijabs Ltd | Wholesale & retail | 2023 |
| Fashion Delights Ltd | Wholesale & retail | 2022 |
| Fashion General Services Limited | Administrative & support | 2005 |
| Fashion Space Clothing Ltd | Wholesale & retail | 2017 |
| Fast Courier and Services Ltd | Transport & logistics | 2026 |
| Fast Flow Plumbing Solutions Ltd | Construction | 2024 |
| Fast Freight Forward Franchising Ltd | Transport & logistics | 2023 |
| Fast Freight Forward Limited | Transport & logistics | 2019 |
| Fast Udyr Ltd | Transport & logistics | 2024 |
| Fast-Pace Medical Services Ltd | Health & social care | 2023 |
| Fatoumattabamo Ltd | Health & social care | 2022 |
| Faultless Electrical Services Ltd | Construction | 2026 |
| Favemma Ltd | Health & social care | 2015 |
| Favicom Ltd | Real estate | 2022 |
| Favoured Pammstedee Ltd | Transport & logistics | 2017 |
| Fazify Pro Ltd | Transport & logistics | 2025 |
| Fbam Group Limited | Financial services | 2026 |
| Fbam Trading Limited | Financial services | 2026 |
| Fbatrade Limited | Wholesale & retail | 2014 |
| FDM International Ltd | Other services | 2018 |
| FDS Healthcare Ltd | Health & social care | 2022 |
| Feao Medical Services Limited | Health & social care | 2024 |
| February 16TH Properties Ltd | Real estate | 2026 |
| Fedem Engineering Ltd. | Professional & scientific | 2019 |
| Fedem Property Solutions Ltd | Real estate | 2022 |
| Fehinope UK Limited | Information & communication | 2015 |
| Fehinti Incorporated Ltd | Health & social care | 2022 |
| Felande Ltd | Health & social care | 2023 |
| Felegal One Limited | Transport & logistics | 2019 |
| Felix Property Invest Ltd | Real estate | 2019 |
| Femadel Limited | Health & social care | 2016 |
| Femz Limited | Health & social care | 2023 |
| Fencepiece Music Limited | Information & communication | 2022 |
| Fencepiece Music Publishing Limited | Information & communication | 2022 |
| Fendale Management Services Limited | Agriculture & fishing | 2010 |
| Fendler & Compagnie Ltd | Professional & scientific | 2024 |
| Fennellys Driving School Ltd | Education | 2018 |
| Ferag UK Ltd | Wholesale & retail | 1969 |
| Feraud Limited | Professional & scientific | 2001 |
| Ferdar Limited | Health & social care | 2023 |
| Fergana OIL Rfinery Plant Ltd | Mining & quarrying | 2025 |
| Ferious Limited | Wholesale & retail | 2025 |
| Fern & Flint Limited | Health & social care | 2025 |
| Fernando Property Rentals Ltd | Real estate | 2024 |
| Ferne Ltd | Professional & scientific | 2014 |
| Ferrale & Partners Ltd | Professional & scientific | 2024 |
| Ferrers Walk Management Company Limited | Households | 2005 |
| Fetch Media Tools Limited | Information & communication | 2025 |
| Feyiara Healthcare Ltd | Health & social care | 2023 |
| Ffenics Performance Nutrition Ltd | Professional & scientific | 2015 |
| FFF Carl Owen Limited | Arts & recreation | 2025 |
| FFJ Estates Limited | Construction | 2019 |
| FFJ Holdings Limited | Financial services | 2019 |
| FGC Property Developers Ltd | Construction | 2024 |
| Fibercom Limited | Construction | 2023 |
| Fibresol Limited | Administrative & support | 2014 |
| Fides Naison Ltd | Health & social care | 2025 |
| Field View (Silsoe) Management Limited | Households | 2019 |
| Fifo Consult Ltd | Wholesale & retail | 2014 |
| FIG Facilities Management Limited | Professional & scientific | 2025 |
| Figaro and Partners Ltd | Information & communication | 2024 |
| Fight Supplies Ltd | Wholesale & retail | 2011 |
| Fightsportsuk Limited | Arts & recreation | 2016 |
| Figures of the Future Ltd | Administrative & support | 2025 |
| Fiji Homes and Properties Ltd | Construction | 2018 |
| Fikra Immobilier Limited | Real estate | 2026 |
| FILM54 Ltd | Information & communication | 2024 |
| Filming Cars Ltd | Transport & logistics | 2024 |
| Filtrex Global Limited | Construction | 2016 |
| Fimasa Limited | Hospitality | 2019 |
| Final Sprinkler Solutions Ltd | Construction | 2018 |
| Financial Concepts Ltd | Real estate | 1984 |
| Fine Wines & Spirits Limited | Wholesale & retail | 2011 |