| Express Worldwide Foods Limited | Manufacturing | 2022 |
| Expression Wills Limited | Professional & scientific | 2020 |
| Exquisite Lettings Ltd | Real estate | 2024 |
| Exteq Limited | Information & communication | 2013 |
| Extraordinary Products Limited | Wholesale & retail | 2012 |
| Extreme C.N.C Services Limited | Manufacturing | 2012 |
| Extreme Houses Ltd | Real estate | 2025 |
| Extreme Seller Ltd | Wholesale & retail | 2022 |
| Extrospective Results Ltd | Administrative & support | 2023 |
| Extrude Hone Ltd | Manufacturing | 1983 |
| Exuma Capital Investments | Financial services | 2024 |
| Exxell Catering Ltd | Hospitality | 2019 |
| EY Boost Ltd | Education | 2025 |
| Eyebrow & Lash Bar Ltd | Other services | 2024 |
| Eyebrowqueen Limited | Wholesale & retail | 2018 |
| Eyecol Properties Ltd | Real estate | 2025 |
| Eyeshade MK Ltd | Wholesale & retail | 2025 |
| Eyezon Security Limited | Administrative & support | 2016 |
| Eynsford House Limited | Extraterritorial | 2012 |
| EYO Atelier Ltd | Manufacturing | 2025 |
| Eyuen Ltd | Information & communication | 2013 |
| Eyworks Limited | Information & communication | 2012 |
| EZ Direct Ltd | Wholesale & retail | 2026 |
| Ezypro Limited | Wholesale & retail | 2011 |
| F & a Enterprise Ltd | Hospitality | 2016 |
| F & M Watches Ltd | Wholesale & retail | 2019 |
| F & R Enterprise Limited | Wholesale & retail | 2017 |
| F & S Property Developments Limited | Construction | 2018 |
| F a Simms & Partners Holdings Limited | Professional & scientific | 1998 |
| F a Simms & Partners Limited | Professional & scientific | 2006 |
| F G Autos Ltd | Wholesale & retail | 2025 |
| F Lepore Limited | Administrative & support | 2007 |
| F Motion Entertainment Ltd | Wholesale & retail | 2025 |
| F Realisations 2026 Limited | Hospitality | 2018 |
| F T Recruitment Limited | Administrative & support | 2011 |
| F&A Care Services Limited | Health & social care | 2026 |
| F&D Kitchens Solutions Limited | Construction | 2009 |
| F&E Translink Ltd | Transport & logistics | 2025 |
| F&F Stores Holdings Limited | Financial services | 2020 |
| F&F Stores Ltd | Wholesale & retail | 2015 |
| F&H International Limited | Manufacturing | 2018 |
| F&J Bricks Ltd | Real estate | 2020 |
| F&N UK Properties Ltd | Real estate | 2022 |
| F&Nmk Ltd | Households | 2026 |
| F&S Hand Car Wash Ltd | Wholesale & retail | 2024 |
| F&S Kebab Ltd | Hospitality | 2013 |
| F. G. Metcalfe & SON Holdings Limited | Real estate | 1962 |
| F. G. Metcalfe & SON Limited | Wholesale & retail | 2009 |
| F. Lynch Limited | Professional & scientific | 2003 |
| F. W. Gapp (Property Management) Ltd | Real estate | 2012 |
| F.B. Guest Limited | Mining & quarrying | 1998 |
| F.G Metcalfe Holdings Ltd | Real estate | 2023 |
| F.W. Gapp (Management Services) Limited | Real estate | 1976 |
| F.W. Gapp (Reeds School) Limited | Professional & scientific | 1989 |
| F1VE Motors Limited | Wholesale & retail | 2026 |
| F4CONTROL Limited | Transport & logistics | 2004 |
| FA Health Limited | Health & social care | 2023 |
| FA Wealth Ltd | Extraterritorial | 2011 |
| FA92 Group Limited | Financial services | 2015 |
| FA92 Wealth Group Ltd | Financial services | 2000 |
| Faaco UK Ltd | Information & communication | 2014 |
| FAB Concerts Ltd | Administrative & support | 2017 |
| FAB Faria Solutions Ltd | Information & communication | 2025 |
| FAB Snax Limited | Wholesale & retail | 2025 |
| FAB Staff Hospitality Ltd | Administrative & support | 2016 |
| Fabric World MK Limited | Wholesale & retail | 2013 |
| Fabricreate Limited | Wholesale & retail | 2019 |
| Fabshowuk Limited | Real estate | 2012 |
| Fabula London Ltd | Professional & scientific | 2011 |
| Fabulous Creations Limited | Professional & scientific | 1989 |
| Face 2 Face MK Ltd | Other services | 2003 |
| Face the Pro Limited | Information & communication | 2010 |
| Facial Rejuvenation Limited | Other services | 2003 |
| Facilities Group Limited | Administrative & support | 2014 |
| Facilities Management Solutions (PGS) Limited | Administrative & support | 2020 |
| Facit Data Systems Ltd | Information & communication | 2014 |
| Factory Clearance Flooring Limited | Wholesale & retail | 2019 |
| Factory Delete Ltd | Manufacturing | 2026 |
| Factoryworx Limited | Manufacturing | 2012 |
| Fadak (MK) Limited | Real estate | 2018 |
| Fadera Care and Recruitment Services Limited | Health & social care | 2019 |
| Faderera Limited | Health & social care | 2021 |
| Fadl Homes Ltd | Households | 2024 |
| Fagor Automation UK Ltd | Other services | 1997 |
| Fahmi-Tec Ltd | Information & communication | 2025 |
| Faineus Limited | Administrative & support | 2017 |
| Fair Path Properties Ltd | Real estate | 2024 |
| Fairview (New Builds) Limited | Construction | 2022 |
| Fairview (Rowan) Limited | Construction | 2022 |
| Fairview Bodmin Limited | Construction | 2021 |
| Fairview Bodmin New Builds Limited | Construction | 2023 |
| Fairview House Developments Limited | Construction | 2020 |
| Fairview MK Property Management Ltd | Real estate | 2018 |
| Faith AZ Auto Limited | Wholesale & retail | 2025 |
| Faith Corner Limited | Real estate | 2026 |
| FAITH24 Ltd | Health & social care | 2022 |
| FAJ Solution Group Ltd | Wholesale & retail | 2020 |
| Fajek Consultant Ltd | Transport & logistics | 2016 |
| Fakhir Ltd | Wholesale & retail | 2024 |
| Fakow Limited | Transport & logistics | 2025 |