| Eastgate Lodge Management Company Limited | Households | 2006 |
| Eastwood Property Limited | Real estate | 2020 |
| Eastwoods Property Limited | Real estate | 2018 |
| EBF Homes Limited | Households | 2022 |
| EBM Consulting Limited | Professional & scientific | 2022 |
| Ecaterina Art Ltd | Construction | 2015 |
| Eclipse Creative Communications Ltd | Administrative & support | 1997 |
| Eclipse Digital Media Ltd | Manufacturing | 2012 |
| Eco German Kitchens Holdings Limited | Financial services | 2013 |
| Eco German Kitchens Limited | Wholesale & retail | 2011 |
| Eco Method Ltd | Administrative & support | 2013 |
| Eco Window Cleaning Services Ltd | Administrative & support | 2024 |
| Eco-Renewable Systems Ltd | Construction | 2023 |
| Econvery Ltd | Construction | 2007 |
| Eden IT Ltd | Information & communication | 2024 |
| Eden Verandas Ltd | Wholesale & retail | 2012 |
| Edens Green Limited | Agriculture & fishing | 2020 |
| Edmund Nuttall Pension Trustees Limited | Financial services | 2019 |
| EDR Group UK Ltd | Financial services | 2025 |
| EDT Logistics Limited | Transport & logistics | 2009 |
| Edulearn Solutions Ltd | Education | 2024 |
| Edunni Consulting Ltd | Information & communication | 2013 |
| Edward Mews Freehold Company Limited | Households | 2022 |
| Eezy Group Ltd | Financial services | 2023 |
| Egregore Capitals Limited | Professional & scientific | 2021 |
| Ehumphries Design Ltd | Professional & scientific | 2023 |
| Ekata Marketing Limited | Wholesale & retail | 2024 |
| EL Midas Medical Ltd | Health & social care | 2026 |
| EL Patron Barbers Ltd | Other services | 2025 |
| EL Patron Ltd | Other services | 2025 |
| Elaine a Moore Ltd | Professional & scientific | 2020 |
| ELB Management Services Ltd | Real estate | 2015 |
| Elcock Enterprise Lettings Limited | Real estate | 2013 |
| Electra Compliance Ltd | Administrative & support | 2012 |
| Electrical Building Systems Limited | Construction | 1996 |
| Electrium (UK) Limited | Manufacturing | 1920 |
| Electrium Sales Limited | Manufacturing | 1988 |
| Electrolease Group Ltd | Administrative & support | 2023 |
| Elegant Kitchens & Bathrooms Ltd | Other services | 2024 |
| Elevate Pilates London Ltd | Arts & recreation | 2025 |
| Eleventh Limited | Health & social care | 2025 |
| ELF Gate Limited | Education | 2025 |
| Elite GP Services Limited | Health & social care | 2022 |
| Elite UK Solutions Limited | Professional & scientific | 2011 |
| Elizabeth Moore Limited | Professional & scientific | 2020 |
| Elizabeth Wild Consulting Limited | Professional & scientific | 2019 |
| Elless Digital Limited | Professional & scientific | 2018 |
| Ellie Nanni Ltd | Arts & recreation | 2026 |
| Elliott Baxter & Company Limited | Wholesale & retail | 1949 |
| Elliott Baxter Holdings Limited | Financial services | 2019 |
| Elmforge Construction Limited | Construction | 2025 |
| Elosh Decorating Ltd | Construction | 2019 |
| Elpa Properties Ltd | Real estate | 2024 |
| Elstream Developments Ltd. | Real estate | 1988 |
| Elstream Holdings Ltd | Real estate | 2015 |
| Elstream Management Limited | Real estate | 1988 |
| Elysium Software Ltd | Information & communication | 2014 |
| Emac Accountants Limited | Professional & scientific | 2012 |
| Embed Signage Ltd | Information & communication | 2016 |
| Embed Solutions Ltd | Administrative & support | 2006 |
| Emberton Court Management Company (Northwood) Limited | Households | 2009 |
| Emct Ltd | Professional & scientific | 2000 |
| Emilly Coffee Ltd | Wholesale & retail | 2019 |
| Emily Gomes Counselling Limited | Health & social care | 2018 |
| Emilymajurywellness Ltd | Other services | 2023 |
| Emkay Construction Ltd | Construction | 2025 |
| Emmersonautos Limited | Wholesale & retail | 2025 |
| Emmett Consulting Limited | Administrative & support | 2012 |
| Empowered Actors Ltd | Arts & recreation | 2021 |
| Empowered Gyms Limited | Arts & recreation | 2013 |
| Emsec Services Limited | Professional & scientific | 2025 |
| Enabling Brighter Futures Ltd | Education | 2012 |
| Energi Recruitment Services Limited | Administrative & support | 2005 |
| Energy Roofing Contractors Ltd | Construction | 2026 |
| Energy Scaffolding Limited | Construction | 2024 |
| Energysun Ltd | Construction | 2024 |
| Engap UK CIC | Education | 2020 |
| Engelpharma UK Limited | Manufacturing | 2006 |
| Engineering Management Solutions Limited | Professional & scientific | 2011 |
| Enterprise Services Defence and Security UK Limited | Information & communication | 1968 |
| Enterprise Services Information Security UK Limited | Information & communication | 1990 |
| Entertainingtv Limited | Information & communication | 2008 |
| Entirety Maintenance Services Ltd | Administrative & support | 2015 |
| Entrepreneur Lifestyle Ltd | Professional & scientific | 2023 |
| Entserv UK Limited | Information & communication | 1897 |
| Envirecruit Limited | Professional & scientific | 2003 |
| Enviro House Ltd | Construction | 2022 |
| EOG Technology Ltd | Information & communication | 2016 |
| EQ Software Solutions Limited | Information & communication | 2016 |
| Equal Potential CIC | Education | 2023 |
| Equal Productions Ltd | Administrative & support | 2016 |
| Equilibria Architectural Services Limited | Professional & scientific | 2022 |
| Erdnuss Limited | Hospitality | 2023 |
| Erinmore Properties Limited | Construction | 1998 |
| Erithview Limited | Construction | 1986 |
| Ermen Autos Limited | Manufacturing | 2026 |
| Esift Limited | Administrative & support | 2008 |
| ESN Financial Solutions Ltd | Financial services | 2024 |
| Espe Design & Build Ltd | Construction | 2021 |
| Estate Lake Systems Ltd | Wholesale & retail | 2018 |