| ED and Co Carpentry and Joinery Limited | Construction | 2014 |
| Eddie Beartoons Ltd | Information & communication | 2016 |
| Edgecumbe Court Freehold(Staines) Limited | Households | 2016 |
| Edroe Properties Ltd | Real estate | 2021 |
| Educare Private Day Nursery Ltd | Health & social care | 2025 |
| Edwards Conlon Ltd | Real estate | 2021 |
| EI Events Ltd | Administrative & support | 2023 |
| Eickemeyer Veterinary Equipment Limited | Professional & scientific | 2006 |
| Eight Phase Consulting Ltd | Professional & scientific | 2022 |
| EJA Services Limited | Professional & scientific | 2017 |
| EJP Associates Limited | Professional & scientific | 1997 |
| Elbe Sunbury Limited | Other services | 2015 |
| Electrical Cable Installation Limited | Construction | 2023 |
| Electromatic ME Ltd | Construction | 2022 |
| Electropower Ltd | Construction | 2025 |
| Elegant Salon Limited | Other services | 2025 |
| Elements Special Effects Limited | Information & communication | 2001 |
| Elevate Digital Global Ltd | Information & communication | 2025 |
| Elif-Gi Ltd | Transport & logistics | 2018 |
| Elite Achievers Ltd | Education | 2021 |
| Elite GB Environmental Services Ltd | Transport & logistics | 2003 |
| Elitehire Recruitment Ltd | Administrative & support | 2024 |
| Elixir IT Solutions Limited | Information & communication | 2008 |
| ELK Scaffolding Ltd | Construction | 2021 |
| Elumy Limited | Professional & scientific | 2026 |
| ELY Lodge Limited | Households | 2000 |
| Elysian Records Ltd | Information & communication | 2016 |
| Emma Gibbs Recruitment Limited | Administrative & support | 2012 |
| Empire CUT Ltd | Other services | 2018 |
| Empowering Young Entrepreneurs CIC | Education | 2025 |
| Empress House Residents Management Company Limited | Real estate | 2015 |
| Empty State Creative Ltd | Information & communication | 2021 |
| Emsc Consulting Ltd | Professional & scientific | 2013 |
| Enercon Ltd | Professional & scientific | 2022 |
| Enovaspace Ltd | Other services | 2019 |
| Entegrity Ltd | Professional & scientific | 2025 |
| Envigorate Ltd | Professional & scientific | 2009 |
| Enzo Cars Limited | Extraterritorial | 2021 |
| Eoss DIG SP Limited | Information & communication | 2025 |
| EP Living Limited | Real estate | 2025 |
| Epoch Space and Living Ltd | Real estate | 2021 |
| EQUIP2CARE Services Ltd | Health & social care | 2026 |
| Equity Property and Parking Services Limited | Other services | 2015 |
| Eric the Plumber Limited | Construction | 2010 |
| ES Secure Electricals Ltd | Construction | 2026 |
| Esotec Ltd. | Administrative & support | 2016 |
| Essense World Ltd | Wholesale & retail | 2019 |
| Euro Techh Limited | Wholesale & retail | 2026 |
| Europe Inbound Limited | Administrative & support | 2011 |
| European Customs Services Ltd | Transport & logistics | 1989 |
| EV 2 Management Ltd | Real estate | 2024 |
| Event Freight Limited | Transport & logistics | 2007 |
| Evergreen Auto Repairs Ltd | Wholesale & retail | 2024 |
| Everydays Assets Limited | Real estate | 2013 |
| Everydays Travel Limited | Transport & logistics | 2009 |
| Evil Twin PR Limited | Professional & scientific | 2018 |
| Evolzo-E-Commerce Ltd | Wholesale & retail | 2025 |
| Evrywhere Group Limited | Professional & scientific | 2016 |
| Exam Aimers Ltd | Education | 2023 |
| Exceed Building Limited | Construction | 2009 |
| Exponza Ltd | Wholesale & retail | 2025 |
| Expotech Holdings Limited | Professional & scientific | 1970 |
| EXPRESS2CHINA Limited | Transport & logistics | 2018 |
| Eyespymedia Ltd | Information & communication | 2024 |
| F&M Security Solution Ltd | Other services | 2026 |
| F.T. Technologies Limited | Wholesale & retail | 1981 |
| Faac Entrance Solutions UK Limited | Construction | 2020 |
| Fabrique (Contracts) Limited | Wholesale & retail | 1995 |
| Faith Recruitment Services Limited | Information & communication | 2026 |
| Faridany Advisory Ltd | Administrative & support | 2013 |
| Farnokia Ltd | Hospitality | 2025 |
| Fast Time Leisure (Amersham) Ltd | Arts & recreation | 2025 |
| Fast Time Leisure Limited | Arts & recreation | 2023 |
| Fastway Global Logistics Ltd | Transport & logistics | 2018 |
| Felix Technology Ltd | Information & communication | 2026 |
| Ferniezulu Limited | Information & communication | 2018 |
| Figtree Accountancy Limited | Professional & scientific | 2013 |
| Figtree Enterprise Limited | Administrative & support | 2024 |
| Film Accounts Technology Limited | Information & communication | 2010 |
| Filmotion Design Limited | Professional & scientific | 2018 |
| Findme Ltd | Administrative & support | 2023 |
| Finesse Fine Foods Ltd | Manufacturing | 2026 |
| Fire Health Safety Solutions Ltd | Professional & scientific | 2024 |
| Firefly Services Ltd | Agriculture & fishing | 2015 |
| Fitfirestop Limited | Public administration | 2019 |
| Fixed Income Analytics Limited | Information & communication | 2007 |
| Fizo Ltd | Hospitality | 2024 |
| Flazel Ltd | Hospitality | 2023 |
| Flett Films Ltd | Information & communication | 2016 |
| Fleur Chandler Consulting Ltd | Professional & scientific | 2024 |
| Flexifeeds Limited | Extraterritorial | 2011 |
| Flora Patricia Ltd | Wholesale & retail | 2024 |
| Flush Plumbing & Heating Limited | Construction | 2014 |
| Flynn & Daughter’S Kitchen Ltd | Hospitality | 2025 |
| Flynn & Daughter’S Ltd | Hospitality | 2024 |
| Fm:Systems Europe Limited | Information & communication | 2009 |
| FMS Europe Holdings Limited | Financial services | 2019 |
| Food Fantasy Limited | Hospitality | 2025 |
| Forge & Frame Ltd | Construction | 2026 |
| Forge Mews (Sunbury) Management Company Limited | Real estate | 2000 |