| Elias Films Limited | Information & communication | 2003 |
| Elite Builders (Kent) Limited | Construction | 2020 |
| Elite Dining Limited | Hospitality | 2018 |
| Elite Electrical Contractors South East Limited | Construction | 2024 |
| Elite Events Live Limited | Administrative & support | 2022 |
| Elite Imperial Investments Ltd | Households | 2025 |
| Elite Importers Limited | Wholesale & retail | 2024 |
| Elite Officers Security Limited | Administrative & support | 2023 |
| Elite Painting Contractors Limited | Administrative & support | 2005 |
| Elite Service Group Limited | Professional & scientific | 2023 |
| Elite Vision Developments Ltd | Households | 2026 |
| Elixir Pictures Limited | Information & communication | 2012 |
| Elkes Ltd | Administrative & support | 2018 |
| Ellerbeck Holdings Ltd | Financial services | 2024 |
| Ellite College Limited | Education | 2017 |
| Elucidate Contractor Services (ECS) Limited | Professional & scientific | 2006 |
| Emankay Enterprises Limited | Real estate | 1976 |
| Emaz Investments Ltd | Real estate | 2026 |
| EME Kairos Limited | Professional & scientific | 2014 |
| Emergency First AID Ltd | Health & social care | 2012 |
| Emilaw Limited | Professional & scientific | 2020 |
| Emir Property Limited | Real estate | 2025 |
| EMJ Wheels Ltd | Wholesale & retail | 2022 |
| Emmeline Green Limited | Administrative & support | 2017 |
| Emnode Limited | Information & communication | 2026 |
| EMP Build & Renovate Ltd | Administrative & support | 2024 |
| Emperial Films Ltd | Information & communication | 2022 |
| Empire Building and Fire Protection Limited | Administrative & support | 2021 |
| Empire Investment Enterprises Limited | Real estate | 2016 |
| Employees Matter Limited | Other services | 2014 |
| Employment Medicine Limited | Health & social care | 2017 |
| Empower HER Club Ltd | Arts & recreation | 2025 |
| Empowered Life Empowered Travels Ltd | Wholesale & retail | 2024 |
| Emson Haig Limited | Wholesale & retail | 2021 |
| Emterial Ltd | Wholesale & retail | 2025 |
| EN Management Services Limited | Wholesale & retail | 2010 |
| Enahgy Listing Ltd | Financial services | 2021 |
| Encore Invest Limited | Professional & scientific | 2013 |
| Encouraging Supported Living Ltd | Health & social care | 2022 |
| Endale Health and Safety Consultancy Ltd | Professional & scientific | 2026 |
| Endeavour Advisory Ltd | Professional & scientific | 2020 |
| Energies SS Ltd | Administrative & support | 2026 |
| Energyband Limited | Construction | 2006 |
| Energym CLO. Ltd | Administrative & support | 2026 |
| Energym Group Ltd | Hospitality | 2024 |
| Energym Ltd | Arts & recreation | 2018 |
| ENG Events & Catering Ltd | Hospitality | 2020 |
| Engineer App Ltd | Information & communication | 2025 |
| Engpro Services Limited | Information & communication | 2024 |
| Enhanced Properties Limited | Construction | 1998 |
| Enigma VFX Limited | Information & communication | 2022 |
| Enkay Digital Limited | Information & communication | 2017 |
| Ensemblemd Ltd | Professional & scientific | 2016 |
| Ensign Integrated Systems Ltd | Manufacturing | 1999 |
| Entech Catering Engineers (London) Ltd | Manufacturing | 2020 |
| Enteraction TV Learning Limited | Information & communication | 2002 |
| Entermail Limited | Real estate | 1998 |
| Enterprise Analytics Consulting Ltd | Professional & scientific | 2016 |
| Enterprise DSD Ventures Ltd | Real estate | 2024 |
| Enterprize Technology Ltd | Wholesale & retail | 2018 |
| Envirotek Construction Limited | Construction | 2009 |
| Envirotek Mechanical Limited | Administrative & support | 2015 |
| Envirotek Services Limited | Administrative & support | 2015 |
| EP Productions Ltd | Arts & recreation | 2017 |
| Epicstar Limited | Construction | 2006 |
| Epping Reef & Reptiles Ltd | Wholesale & retail | 2019 |
| Epping Technologies Limited | Information & communication | 2017 |
| Epsilon Property & Development Ltd | Real estate | 2022 |
| Equity Drives Limited | Construction | 2015 |
| Equity Properties London Ltd | Real estate | 2022 |
| ER Design and Building Limited | Construction | 2025 |
| ERA Engineering Ltd | Construction | 2019 |
| Ercs Medical Limited | Health & social care | 2025 |
| Erisha Limited | Real estate | 2021 |
| Ernrick Motors Limited | Wholesale & retail | 1976 |
| Errol Lloyd Denton Limited | Administrative & support | 2020 |
| ES Collects Ltd | Wholesale & retail | 2026 |
| ES Operator UK Limited | Wholesale & retail | 2020 |
| Esetan Limited | Administrative & support | 2021 |
| Eshala Limited | Information & communication | 2021 |
| Eskyn Ltd | Wholesale & retail | 2022 |
| Esoftarena Ltd | Information & communication | 2010 |
| ESP Security Solutions Limited | Administrative & support | 2011 |
| Essex Beauty Limited | Other services | 2023 |
| Essex Bespoke Jewellery Limited | Manufacturing | 2022 |
| Essex Building Construction Ltd | Construction | 2018 |
| Essex Country Homes Limited | Construction | 2019 |
| Essex Jewish News Limited | Information & communication | 1981 |
| Estatemark Limited | Real estate | 1996 |
| Este Jewellery Limited | Wholesale & retail | 2002 |
| ETD Consultants Limited | Administrative & support | 2007 |
| ETP Solutions Limited | Administrative & support | 2014 |
| Euphrosine Homes Ltd | Real estate | 2020 |
| Eurisor Capital Limited | Financial services | 2025 |
| European Building Materials Ltd | Wholesale & retail | 2002 |
| European Building Materials Property Ltd | Real estate | 2018 |
| European Philatelic Experts Limited | Other services | 2006 |
| Eurovista Properties Limited | Real estate | 1999 |
| Eutopia Holdings Limited | Information & communication | 2022 |
| Eutopia Solutions Ltd | Information & communication | 1999 |