| Eco Build Group Ltd | Construction | 2018 |
| Eco Build Homes Ltd | Real estate | 2021 |
| Eco Build Living Limited | Construction | 2023 |
| Eco Carz Ltd | Wholesale & retail | 2016 |
| Eco Enviroment Limited | Manufacturing | 2021 |
| Eco Estates London Ltd | Real estate | 2026 |
| Eco Green Home Grants Ltd | Construction | 2020 |
| Eco Green Insulation Limited | Construction | 2022 |
| Eco Green Survey Ltd | Construction | 2020 |
| Eco Heating Expert Ltd | Construction | 2025 |
| Eco Horizon Ltd | Construction | 2020 |
| Eco Property Developments Ltd | Construction | 2020 |
| Eco Sleeve Limited | Administrative & support | 2018 |
| Eco Smart Homes Ltd | Construction | 2023 |
| Eco Sustain Hub Ltd | Wholesale & retail | 2025 |
| Eco Tyres Ltd | Water & waste | 2026 |
| Eco Whites London Ltd | Wholesale & retail | 2021 |
| Eco-Ride London Ltd | Transport & logistics | 2025 |
| Ecobuildservices UK Limited | Construction | 2024 |
| Ecobuilduk Limited | Construction | 2015 |
| Ecodeals Hub Limited | Wholesale & retail | 2025 |
| Ecohome Services Ltd | Other services | 2023 |
| Ecohomesuk Ltd | Manufacturing | 2019 |
| Ecoinsulationpoint Limited | Construction | 2024 |
| Ecological Grants Ltd | Construction | 2024 |
| Ecom Ninja Ltd | Wholesale & retail | 2023 |
| Ecom Trader Ltd | Transport & logistics | 2023 |
| Ecomaker Group Limited | Wholesale & retail | 2023 |
| Ecomax Insulation Ltd | Construction | 2022 |
| Ecomco Ltd | Information & communication | 2023 |
| Ecomerence Solutions Ltd | Wholesale & retail | 2026 |
| Economic Data Sciences Ltd | Financial services | 2017 |
| Econtent Systems Limited | Information & communication | 2010 |
| Ecopia Ltd | Professional & scientific | 2012 |
| Ecopick Ltd | Wholesale & retail | 2020 |
| Ecotech Power Installers Ltd | Professional & scientific | 2024 |
| Ecouniverse Ltd | Wholesale & retail | 2026 |
| Ecoworks Limited | Information & communication | 2025 |
| Ecoza Compliance Ltd | Professional & scientific | 2026 |
| ED Contracting Ltd | Construction | 2024 |
| Eddie Express Ltd | Transport & logistics | 2018 |
| Eden Accountants Limited | Professional & scientific | 2025 |
| Eden Jones Ltd | Administrative & support | 2013 |
| Edge Diagnostics Ltd | Health & social care | 2023 |
| Edge Travel Limited | Transport & logistics | 2024 |
| Edgestaff Ltd | Real estate | 2019 |
| Edgware Road One Flat Ltd | Financial services | 2016 |
| EDI Systems Ltd | Information & communication | 2017 |
| Edit Jungle Ltd | Information & communication | 2019 |
| Edtelecom Ltd | Information & communication | 2022 |
| Educate 2GETHER Training Ltd | Education | 2023 |
| Educators First Limited | Administrative & support | 2025 |
| Educere Education Ltd | Education | 2019 |
| Educom UK Ltd. | Education | 2020 |
| Eduklix Limited | Education | 2025 |
| Edurtreg Healthcare Limited | Health & social care | 2015 |
| Edventure Ltd | Extraterritorial | 2018 |
| EDW Solutions Limited | Information & communication | 2014 |
| Edward Miles Removals, Storage, Shipping Ltd | Transport & logistics | 2014 |
| Edwards Fitters Ltd | Construction | 2017 |
| Edyn Investments Limited | Real estate | 2019 |
| Eecomm Ltd | Wholesale & retail | 2023 |
| EEM Housing Limited | Real estate | 2019 |
| Eenergy Solutions Ltd | Construction | 2024 |
| Eezshopping Ltd | Wholesale & retail | 2023 |
| EF Health Care Limited | Health & social care | 2026 |
| Efaris Consulting Limited | Information & communication | 2010 |
| Effectus 360 Ltd | Professional & scientific | 2016 |
| Efficens Property Services Ltd | Real estate | 2024 |
| Efficient Recruitment Ltd | Transport & logistics | 2020 |
| Efficient Trans Ltd | Transport & logistics | 2022 |
| EFL Global UK (PVT) Ltd | Transport & logistics | 1983 |
| Eggloo Ltd | Administrative & support | 2017 |
| Eggryday Ltd | Wholesale & retail | 2018 |
| Egremont Gardens (Slough) Management Company Limited | Real estate | 1982 |
| EGS Building Ltd | Construction | 2024 |
| EGS DIY Ltd | Construction | 2025 |
| Egyfarm Ltd | Wholesale & retail | 2017 |
| Egyland Limited | Wholesale & retail | 2016 |
| EH Latam Limited | Professional & scientific | 2025 |
| EH Laundry Limited | Professional & scientific | 2025 |
| EH Pest Limited | Professional & scientific | 2025 |
| EH Surface Europe Limited | Professional & scientific | 2025 |
| EH Surface NAM Limited | Professional & scientific | 2025 |
| Ehan Logic Limited | Information & communication | 2023 |
| Ehanar Trading Ltd | Wholesale & retail | 2022 |
| EIC Trading Ltd | Transport & logistics | 2014 |
| Eight Diamonds Ltd | Transport & logistics | 2025 |
| Eight Lets Ltd | Households | 2025 |
| Eighteen Street Limited | Professional & scientific | 2023 |
| Eisa Construction Services Ltd | Construction | 2022 |
| Eisi Global Ltd | Professional & scientific | 2023 |
| EJB Solutions Limited | Agriculture & fishing | 2016 |
| Ejla Property Limited | Construction | 2025 |
| EK Groundworks Ltd | Construction | 2021 |
| EK Onkar Property Management UK Ltd | Construction | 2023 |
| Ekam Property Ltd | Real estate | 2022 |
| Ekkam Transport Ltd | Transport & logistics | 2025 |
| Eknoor Enterprises Ltd | Wholesale & retail | 2026 |
| Ekom Solutions Ltd | Real estate | 2008 |