| ECC Trade Limited | Wholesale & retail | 2024 |
| Eco Contracts Limited | Construction | 2012 |
| Eco Electrical Cont. Ltd | Construction | 2026 |
| Eco Light and Power Limited | Construction | 2006 |
| Economy Hire & Drive Ltd | Administrative & support | 2015 |
| Ecosse Technical Services Ltd | Other services | 2017 |
| ECR Media Productions Limited | Arts & recreation | 2007 |
| ECW Holdings Limited | Financial services | 2015 |
| Eddie Ablitt Ltd | Construction | 2015 |
| Edfi UK Ltd | Education | 2024 |
| Edfords Care Farm Community Interest Company | Agriculture & fishing | 2013 |
| Edfords Farm & Butchery Limited | Agriculture & fishing | 2021 |
| Edge Collection Limited | Hospitality | 2026 |
| Edouard Group Limited | Other services | 2023 |
| EDP Partners Limited | Real estate | 2018 |
| Educational Psychology Solutions Limited | Health & social care | 2010 |
| Edwyn Rose Consultancy Ltd | Administrative & support | 2018 |
| Eeegr | Other services | 2000 |
| Effective Imaging Limited | Manufacturing | 2016 |
| EGE Energy Ltd | Construction | 2011 |
| Eggbox Studios Limited | Professional & scientific | 2018 |
| Ehan & Co Ltd | Hospitality | 2021 |
| EHM Properties Limited | Real estate | 2021 |
| EHR Inspection Services Ltd | Professional & scientific | 2020 |
| Eileens Edit Ltd | Wholesale & retail | 2026 |
| EL Endo Dent Ltd | Health & social care | 2023 |
| Elby EA Limited | Construction | 2022 |
| Elcrest Limited | Other services | 2001 |
| Elderaid Care Ltd | Administrative & support | 2026 |
| Electrical Automation UK Ltd | Manufacturing | 2016 |
| Electrical Power Solutions Limited | Construction | 2013 |
| Electro-Tech (E.A.) Limited | Wholesale & retail | 2006 |
| Elevate HR Services Ltd | Administrative & support | 2024 |
| Elhj Holdings Ltd | Construction | 2023 |
| Elisei's Cleaning Ltd | Administrative & support | 2024 |
| Elite Green Technologies Ltd | Information & communication | 2011 |
| Elite Inspection Services Ltd | Manufacturing | 2019 |
| Elite Roofing and Cladding Specialists Ltd | Construction | 2025 |
| Elite Teaching Limited | Education | 2014 |
| Elite Verandahs Ltd | Construction | 2023 |
| Elles Pampered Pooches Ltd | Other services | 2025 |
| Elliot and Co Homes Limited | Construction | 2020 |
| Elliot Answer Marine Services Ltd | Professional & scientific | 2024 |
| Elliot Electrical Limited | Construction | 2017 |
| Ellis & Griffin Flooring Ltd | Construction | 2021 |
| Elly Harnett Limited | Other services | 2014 |
| ELM Contracts (Contracting) Limited | Construction | 1996 |
| ELM Contracts (Joinery) Limited | Extraterritorial | 1997 |
| ELM Contracts (Leisure) Limited | Extraterritorial | 1997 |
| Elms Barn Limited | Hospitality | 1957 |
| Elysium Beauty Spa Limited | Other services | 2013 |
| El‘S Catering Ltd | Hospitality | 2022 |
| EM Inuvai C.I.C. | Education | 2026 |
| EMB Group Holdings Limited | Real estate | 2018 |
| Embrace Wellness Products Limited | Wholesale & retail | 2024 |
| Emdee West Ltd | Wholesale & retail | 2026 |
| Emijo (East Anglia) Limited | Health & social care | 2006 |
| Emily TM Ltd | Construction | 2023 |
| Emjay Plumbing & Heating Limited | Construction | 2013 |
| En-Gen Diesel Products Limited | Wholesale & retail | 2017 |
| ENA Transport Ltd | Transport & logistics | 2023 |
| Enache 78 Ltd | Administrative & support | 2018 |
| Enchanted Resin Limited | Arts & recreation | 2019 |
| Endvrance Limited | Extraterritorial | 2021 |
| Enermech Holdings Ltd | Financial services | 2020 |
| Enermech International Ltd | Financial services | 2020 |
| Enfralex Limited | Professional & scientific | 2014 |
| Eng-Cad Limited | Professional & scientific | 2008 |
| Engineering & Technical Staffing Solutions Limited | Construction | 2017 |
| Engraphics Limited | Professional & scientific | 2005 |
| Enmech Engineering Services Limited | Professional & scientific | 2016 |
| ENR Management Services Limited | Real estate | 2020 |
| Ensign Subsea Systems Limited | Manufacturing | 2016 |
| Ensure Fire Safety Limited | Professional & scientific | 2014 |
| Enterprise Buildings GY Ltd | Real estate | 2024 |
| Enterprise for London Ltd | Administrative & support | 2015 |
| Enterprises for Life Funding Limited | Construction | 2020 |
| Enviroco Limited | Extraterritorial | 2018 |
| EOA.91 Limited | Health & social care | 2025 |
| Epaminonda M Ltd | Health & social care | 2025 |
| EPC Energy Surveys Ltd | Professional & scientific | 2011 |
| Equinox Enterprises Limited | Construction | 2016 |
| Equinox Property Holdings Limited | Real estate | 2019 |
| Equipment Solutions Limited | Administrative & support | 2008 |
| Equity Partners Group Ltd | Real estate | 2009 |
| ER (East Anglia) Limited | Real estate | 2013 |
| Erminis Investments Ltd | Real estate | 2021 |
| ERP Rope Access Rigging Ltd | Professional & scientific | 2025 |
| Erskine Electrical Contractors Limited | Construction | 1994 |
| Ertash Barbers Limited | Other services | 2022 |
| Erview Limited | Real estate | 2022 |
| ES Property Services (Norfolk) Ltd | Real estate | 2022 |
| ESA Trading Ltd | Hospitality | 2019 |
| Escape Great Yarmouth Limited | Arts & recreation | 2021 |
| Espineira Holdings Limited | Health & social care | 2022 |
| Essay Films Limited | Information & communication | 1961 |
| Esselle Catering Services Limited | Hospitality | 1997 |
| Essential Power Support Limited | Professional & scientific | 2008 |
| ETL Europe Ltd | Information & communication | 2015 |
| EU Plus Market Ltd | Wholesale & retail | 2025 |