| Eurotec Security Solutions Ltd | Administrative & support | 2006 |
| Evenmead Limited | Households | 1973 |
| Events Lane Limited | Administrative & support | 2012 |
| Everyday Brilliance Ltd | Professional & scientific | 2026 |
| Evologie Worldwide Ltd | Administrative & support | 2011 |
| Evolveip Ltd | Information & communication | 2008 |
| Excelat CAD Limited | Information & communication | 2008 |
| Excellence Diner Ltd | Hospitality | 2020 |
| Exchange Parking Limited | Real estate | 1992 |
| Exchange Quay Management Company Limited | Real estate | 1989 |
| Exito Sports Company Limited | Manufacturing | 1999 |
| Expert Powertrain Limited | Professional & scientific | 2003 |
| Express Pet Supplies Limited | Wholesale & retail | 2018 |
| Extra Mile Consultant Ltd | Professional & scientific | 2026 |
| Extra Store Limited | Transport & logistics | 2023 |
| EYE Love YOU Limited | Extraterritorial | 2025 |
| Face Aesthetica Ltd | Other services | 2024 |
| Fadle Limited | Professional & scientific | 2017 |
| Fairclough Property Limited | Real estate | 2017 |
| Fairclough&Co Ltd | Professional & scientific | 2014 |
| Fairhurst Leisure Limited | Hospitality | 2025 |
| Falke Investigations Limited | Administrative & support | 2025 |
| Falkon Digital Limited | Administrative & support | 2009 |
| Fancourt Investments Limited | Financial services | 2023 |
| Farfield Trading Ltd | Wholesale & retail | 2016 |
| Fastbox Properties Limited | Real estate | 2022 |
| Faye James Aesthetics Ltd | Other services | 2025 |
| FEL Valves Sales Limited | Wholesale & retail | 2006 |
| Fernbank Enterprises Ltd | Information & communication | 2026 |
| Ferncroft Avenue Management Company Limited | Real estate | 1993 |
| FFI Investments Ltd | Real estate | 2020 |
| FGP 2024 Development Limited | Administrative & support | 2024 |
| FGP Energy Limited | Professional & scientific | 2019 |
| FGP Surveyors Limited | Professional & scientific | 2006 |
| Fieldfares Property Management Company (Arclid) Limited | Households | 1998 |
| Fifth Absorb Ltd. | Wholesale & retail | 2025 |
| Filmstein Limited | Information & communication | 2017 |
| Findmea.Com Limited | Professional & scientific | 1995 |
| Fingerpost Farm Barn (Toft) Management Company Limited | Households | 2007 |
| Fiosrach Limited | Information & communication | 2023 |
| Firdale Park East Apartments Management Company (NO.4) Limited | Professional & scientific | 1988 |
| Firdale Park East Apartments Management Company (Number 2) Limited | Professional & scientific | 1986 |
| Firefly Protection Systems Limited | Extraterritorial | 2025 |
| Firefly U.K Ltd | Extraterritorial | 2025 |
| Firework Public Relations Ltd | Administrative & support | 2012 |
| First Class Private Hire Limited | Transport & logistics | 2012 |
| First Point Care Ltd | Construction | 2023 |
| Fishers' (Crouch END) Limited | Real estate | 1942 |
| Fishwick Holdings Limited | Financial services | 2025 |
| Fit 4 ME Ltd | Wholesale & retail | 2020 |
| FIT4LIFEKNUTSFORD Ltd | Health & social care | 2016 |
| Fitzgeorge & Fitzjames Freehold Limited | Households | 2014 |
| FJH Bookkeeping Services Limited | Professional & scientific | 2023 |
| Flexin Tech Ltd | Information & communication | 2025 |
| Flexx Beauty Ltd | Wholesale & retail | 2024 |
| FLI Backward Limited | Professional & scientific | 2006 |
| Flooring 4 YOU Limited | Wholesale & retail | 2010 |
| Florice Ltd | Manufacturing | 2023 |
| FLR42 Ltd | Information & communication | 2024 |
| Flueboost Limited | Manufacturing | 2000 |
| Fluxx Group Ltd | Transport & logistics | 2026 |
| Flying PAN Training Ltd | Professional & scientific | 2019 |
| Flynn 1989 Limited | Administrative & support | 2019 |
| Fogg Ltd | Wholesale & retail | 2019 |
| Football Systems Ltd. | Wholesale & retail | 2012 |
| Footprint Solutions Limited | Information & communication | 2006 |
| FOR Your Workplace Ltd | Wholesale & retail | 2024 |
| Forest Skills Ltd | Education | 2012 |
| Forged Motors Limited | Wholesale & retail | 2021 |
| Fork and Field Catering Limited | Hospitality | 2020 |
| Form Arch + Design Ltd | Professional & scientific | 2022 |
| Fortuitus Limited | Professional & scientific | 2009 |
| Fortuitus Ventures Limited | Financial services | 2024 |
| Forward Construction and Developments Limited | Real estate | 1997 |
| Foster Wheeler (G.B.) Limited | Professional & scientific | 1962 |
| Foster Wheeler (London) Limited | Professional & scientific | 1966 |
| Foster Wheeler (Process Plants) Limited | Extraterritorial | 1974 |
| Foster Wheeler E&C Limited | Professional & scientific | 1988 |
| Foster Wheeler Environmental (UK) Limited | Extraterritorial | 1982 |
| Foster Wheeler Europe | Professional & scientific | 2000 |
| Foster Wheeler World Services Limited | Professional & scientific | 1979 |
| Foundation Years Nurseries Debdale Ltd | Education | 2013 |
| FOUR3 Investments Ltd | Real estate | 2019 |
| FPC 1 Ltd | Real estate | 2023 |
| FPC 2 Ltd | Construction | 2023 |
| FQ Engineering Limited | Construction | 2017 |
| Francome's Building Supplies Ltd | Wholesale & retail | 2021 |
| Fraser Corporate Services Limited | Administrative & support | 2010 |
| Fraser Morris Limited | Real estate | 2024 |
| Free Social Bingo Ltd | Arts & recreation | 2025 |
| Free Trade Hall Hotel Limited | Hospitality | 2000 |
| Freemotion Ltd | Administrative & support | 2019 |
| Freshmeadow 19 Ltd | Real estate | 2024 |
| Friarsgate Financial Planning Limited | Financial services | 2019 |
| Frodsham Fleet Services Limited | Transport & logistics | 2020 |
| Froggatt Training Ltd | Education | 2026 |
| Fryer Trustees Limited | Extraterritorial | 2021 |
| Fuchsia School of Dance Ltd | Education | 2025 |
| Full Circle PM Ltd | Professional & scientific | 2018 |
| Fully Scaled MF Limited | Agriculture & fishing | 2025 |