| Empower Enterprises Ltd | Other services | 2024 |
| Engenious Limited | Other services | 2026 |
| Enright Roofing Limited | Construction | 2006 |
| Ensigna Construction Limited | Other services | 2006 |
| Entech Limited | Manufacturing | 1990 |
| ERJ Telecommunications Limited | Construction | 2018 |
| Escapade Automotive and Motorhome Hire Limited | Wholesale & retail | 2020 |
| Essent Solutions Limited | Construction | 2010 |
| Essential Property Renovations Ltd | Construction | 2017 |
| Eternal Tattoos Limited | Other services | 2022 |
| Etherden Roofing Ltd | Construction | 2023 |
| Ethicus AI Ltd | Professional & scientific | 2024 |
| ETS Project Finance Limited | Professional & scientific | 2019 |
| EU Mergers Limited | Professional & scientific | 2007 |
| Evans Office Management Limited | Administrative & support | 2024 |
| Event Life.Com (London) Limited | Administrative & support | 2014 |
| Event Live Limited | Administrative & support | 2016 |
| Event Medical Team Limited | Health & social care | 2019 |
| Events by Stephanie Ltd | Other services | 2025 |
| Evergreen Building Services Ltd | Construction | 2017 |
| Evergreen Consultants Ltd | Professional & scientific | 2025 |
| Evergreen Electrical Contractors Limited | Construction | 2019 |
| Evergreen Scaffolding Limited | Construction | 2020 |
| Everthread Ltd | Professional & scientific | 2025 |
| Evervue UK Ltd | Wholesale & retail | 2021 |
| Evilstar Ltd | Manufacturing | 2005 |
| Evoke Interiors Ltd | Construction | 2022 |
| Ewelme Green Ltd | Professional & scientific | 2024 |
| Excel Mechanical Services London Ltd | Professional & scientific | 2011 |
| Excel Medical Services Limited | Health & social care | 2006 |
| Expansion Group Ltd | Professional & scientific | 2020 |
| Exterior Cleaning Services Ltd | Administrative & support | 2024 |
| F & D Property Management Ltd | Real estate | 2020 |
| F M Pest Solutions Limited | Administrative & support | 2009 |
| F P C Management Limited | Real estate | 2003 |
| F&O Installations Ltd | Construction | 2023 |
| F. List UK Ltd. | Manufacturing | 2019 |
| F.G. Snowden Limited | Real estate | 1957 |
| F.W. Travels Ltd | Transport & logistics | 2026 |
| FAB Pack Limited | Wholesale & retail | 2000 |
| Fair Solution Limited | Administrative & support | 2014 |
| Faith Hair and Beauty Ltd | Other services | 2022 |
| Falcon Flight Training Academy Limited | Extraterritorial | 2009 |
| Falcon Flying Group Limited | Extraterritorial | 2008 |
| Falcon Flying School Limited | Extraterritorial | 2012 |
| Falcon Flying Services Ltd. | Administrative & support | 1999 |
| Fallsbrook Motors Limited | Wholesale & retail | 2003 |
| Farley Common Consulting Ltd | Wholesale & retail | 2023 |
| Fast Build Brad Ltd | Construction | 2025 |
| Fast Fleet Logistics Ltd | Transport & logistics | 2024 |
| Fastop Holdings Ltd | Real estate | 2025 |
| Fastop Ltd | Transport & logistics | 2021 |
| Fastway Flooring Ltd | Manufacturing | 2025 |
| Feast and Fete Ltd | Hospitality | 2025 |
| Fedurco Ltd | Other services | 2018 |
| Fedurco Properties Ltd | Households | 2023 |
| Fergus Construction Limited | Construction | 2005 |
| Fern Landscaping Ltd | Administrative & support | 2026 |
| Fern Place (Crowborough) Management Company Limited | Households | 2026 |
| Ffhs Solutions Ltd | Construction | 2026 |
| FHF Freight Management Ltd | Administrative & support | 2019 |
| Fieldspot Ltd | Construction | 2025 |
| Figio Limited | Health & social care | 2013 |
| Finch Nest Preschool Ltd | Education | 2023 |
| Findley Consulting Ltd | Construction | 2025 |
| Fine Guard Ltd | Administrative & support | 2025 |
| Fintome Limited | Information & communication | 2024 |
| Fiona Rogers Ltd | Other services | 2026 |
| Firdale Investments Limited | Administrative & support | 2009 |
| First Class-Holiday Properties (Eastbourne) Ltd | Hospitality | 2014 |
| First Impressions Driveways Limited | Professional & scientific | 1999 |
| Five Elms PCN Limited | Health & social care | 2023 |
| Fixher Limited | Information & communication | 2026 |
| Fixmyelectrics Ltd | Construction | 2020 |
| Flamme Rouge Events Ltd | Manufacturing | 2021 |
| Flea Ltd | Information & communication | 2021 |
| Flock Collective Ltd | Information & communication | 2017 |
| Floriota Limited | Administrative & support | 2016 |
| Fluester Plumbing and Heating Ltd | Construction | 2023 |
| Fluid Power Direct Ltd | Wholesale & retail | 2021 |
| FLY Khonsu Ltd | Transport & logistics | 2022 |
| Foleys Plastering Ltd | Construction | 2026 |
| Fongops Limited | Information & communication | 2014 |
| Forbes Stock Stud Limited | Agriculture & fishing | 2023 |
| Forest Software Ltd | Information & communication | 2026 |
| Forester's Woodland Limited | Education | 2021 |
| Forge House Limited | Hospitality | 2016 |
| Formally Wild Ltd. | Professional & scientific | 2017 |
| Formex Building and Construction Ltd | Construction | 2025 |
| Fortis Connect Ltd | Professional & scientific | 2021 |
| Fortress & Towers Ltd | Real estate | 2023 |
| Forward Planners Limited | Manufacturing | 1992 |
| Fountain Park Management Company Limited | Real estate | 2008 |
| Four Beans Contracting Ltd | Information & communication | 2014 |
| Four Corners Advertising Limited | Professional & scientific | 2003 |
| Four Legs Kitchen Limited | Hospitality | 2019 |
| Fourtalk Communications Ltd | Information & communication | 2025 |
| Fowler Heating & Plumbing Ltd. | Other services | 2015 |
| Foxwise Holdings Ltd | Real estate | 2025 |
| Francis Consulting Services Limited | Administrative & support | 2007 |