| Ever Leaves Ltd | Hospitality | 2025 |
| Ever Sure Group Ltd | Construction | 2025 |
| Evergreen Commerical Ltd | Real estate | 2025 |
| Evmaria Services Ltd | Information & communication | 2023 |
| Evolve Football & Goalkeeping Academy Limited | Education | 2020 |
| Evolvecommerce Limited | Professional & scientific | 2018 |
| Excel (Life Assurance & Mortgage Consultants) Limited | Financial services | 2000 |
| Excel Cleaning Services Ltd | Administrative & support | 2017 |
| Excellence First Enterprise Consultancy Ltd | Education | 2006 |
| Excess Waste Management Ltd | Water & waste | 2025 |
| Exclusive Prestige Repair Ltd | Wholesale & retail | 2021 |
| Exeter Edinburgh Limited | Construction | 2019 |
| Exhale Wellness Club Ltd | Other services | 2026 |
| EXP Transport Ltd | Transport & logistics | 2025 |
| Extended Venture Limited | Construction | 2023 |
| Extension Plus Limited | Administrative & support | 2016 |
| Exterior Plas Limited | Construction | 1988 |
| F E Thornton & Co Limited | Real estate | 1949 |
| F'Almo Ltd | Extraterritorial | 2021 |
| Fabro Properties Ltd | Real estate | 2024 |
| Fagl Ltd | Wholesale & retail | 2021 |
| Fairmead Managed Services Trustee Limited | Administrative & support | 2025 |
| Fairplay Exchange Limited | Other services | 2021 |
| Fairway Connect Ltd. | Professional & scientific | 2018 |
| Fame Hosiery Limited | Wholesale & retail | 2013 |
| Family Therapy Solutions Limited | Health & social care | 2018 |
| Fara & Cole DRY Cleaning LLP | | 2018 |
| Farmco Foods Ltd | Financial services | 2026 |
| Farooqis London Limited | Wholesale & retail | 2021 |
| Fast Films Ltd | Arts & recreation | 2021 |
| Fast Track Pest Control Limited | Administrative & support | 2018 |
| Faulkner Bradley Limited | Real estate | 1980 |
| Feather and Grey Interiors Ltd | Construction | 2017 |
| Federation of Private Residents' Associations Limited(The) | Other services | 1986 |
| Felida Limited | Hospitality | 2025 |
| Ferns Communications Limited | Professional & scientific | 2020 |
| FGS Accountancy & Taxation Limited | Professional & scientific | 2013 |
| Fibre Solutions Limited | Information & communication | 2003 |
| Fields Engine Service Limited | Manufacturing | 1959 |
| Fifi & BEL Limited | Wholesale & retail | 2019 |
| Fifteen Management Limited | Other services | 2017 |
| Finchley Reversions Limited | Real estate | 2023 |
| Findlay Wetherfield Scott & Co Limited | Extraterritorial | 1988 |
| Fine Way Trading Limited | Construction | 2022 |
| Finer Fleet Ltd | Transport & logistics | 2023 |
| Finishing Line Limited(The) | Manufacturing | 1987 |
| Firedoor IQ Ltd | Public administration | 2026 |
| First Consultants Ltd | Professional & scientific | 2015 |
| First Point Properties Limited | Real estate | 2024 |
| Firstway Properties Limited | Real estate | 2004 |
| Fisher and Family Limited | Construction | 2019 |
| Fit School Limited | Arts & recreation | 2013 |
| Fitness Box Gym Ltd | Arts & recreation | 2022 |
| Fitness Financial Specialists Ltd | Professional & scientific | 2021 |
| Fixnow App Limited | Information & communication | 2025 |
| Flavour Frequency Ltd | Hospitality | 2026 |
| Flex PT Ltd | Other services | 2025 |
| Flinns Properties Ltd | Real estate | 2022 |
| Flint Building Ltd | Construction | 2021 |
| FLO Wellness Ltd | Professional & scientific | 2015 |
| Focus Detailing Limited | Wholesale & retail | 2018 |
| FOE Ltd | Professional & scientific | 2025 |
| Food Asia Group Limited | Hospitality | 2019 |
| Forest Communications Ltd | Information & communication | 2013 |
| Forest Edge (Thornwood Common) Management Company Limited | Households | 2006 |
| Forest Norton Ltd | Professional & scientific | 2025 |
| Forever Young Epping Limited | Other services | 2024 |
| Forrest Enterprises Limited | Professional & scientific | 2011 |
| Forty Nine HR Limited | Administrative & support | 2008 |
| Forwards Marketing Ltd | Professional & scientific | 2017 |
| Fost Construction Ltd | Construction | 2015 |
| Four Square Limited | Construction | 1998 |
| FOX Books Limited | Professional & scientific | 2012 |
| FOX Family Enterprises Ltd | Financial services | 2022 |
| Foxy Nails Ltd | Other services | 2016 |
| Frank Hanrahan Limited | Information & communication | 2015 |
| Franklin and Mckenna Ltd | Construction | 2014 |
| Freeman Productions Limited | Arts & recreation | 2016 |
| Freeston Productions Limited | Wholesale & retail | 2021 |
| Freighton Logistics Ltd | Transport & logistics | 2024 |
| Freya Freight Ltd | Transport & logistics | 2025 |
| Freya Wembley Flat 1 Ltd | Real estate | 2025 |
| Freya Wembley Flat 10 Ltd | Real estate | 2025 |
| Freya Wembley Flat 11 Ltd | Real estate | 2025 |
| Freya Wembley Flat 12 Ltd | Real estate | 2025 |
| Freya Wembley Flat 13 Ltd | Real estate | 2025 |
| Freya Wembley Flat 14 Ltd | Real estate | 2025 |
| Freya Wembley Flat 15 Ltd | Real estate | 2025 |
| Freya Wembley Flat 16 Ltd | Real estate | 2025 |
| Freya Wembley Flat 2 Ltd | Real estate | 2025 |
| Freya Wembley Flat 3 Ltd | Real estate | 2025 |
| Freya Wembley Flat 4 Ltd | Real estate | 2025 |
| Freya Wembley Flat 5 Limited | Real estate | 2025 |
| Freya Wembley Flat 6 Ltd | Real estate | 2025 |
| Freya Wembley Flat 7 Ltd | Real estate | 2025 |
| Freya Wembley Flat 8 Ltd | Real estate | 2025 |
| Freya Wembley Flat 9 Ltd | Real estate | 2025 |
| Frui Limited | Administrative & support | 2008 |
| Fruve London Ltd | Wholesale & retail | 2020 |
| FT Aero Limited | Manufacturing | 2020 |