| Eaib Consulting Limited | Professional & scientific | 2000 |
| Earl and Wright Limited | Construction | 2006 |
| Earlsmead Homes Ltd | Real estate | 2022 |
| Easilet Rentals Limited | Real estate | 2003 |
| East Anglia Education Ltd | Education | 1994 |
| East Anglian Homes Limited | Construction | 1999 |
| East Essex IT Ltd | Information & communication | 2005 |
| East Essex Motor Accessories Limited | Real estate | 1964 |
| East London Electrical Service Ltd. | Professional & scientific | 2010 |
| East-West Travel Limited | Real estate | 1991 |
| Eastern Counties Railway Company Limited | Arts & recreation | 1988 |
| Eastern National Omnibus Company Ltd | Transport & logistics | 2002 |
| Eastern Square Properties Limited | Construction | 1999 |
| Eastil Ltd | Construction | 2026 |
| Eastmoore Ltd | Real estate | 2025 |
| Eastown Limited | Hospitality | 2016 |
| Eastside Future Sports Ltd | Arts & recreation | 2024 |
| Easy Extensions Ltd | Construction | 2020 |
| Easy Pick Services Ltd | Other services | 2019 |
| Easy Property Consultants Ltd | Real estate | 2005 |
| Easy Skips Limited | Information & communication | 2024 |
| Easyvalet Ltd | Administrative & support | 2007 |
| Easyway Frozen Products Limited | | 1971 |
| Eaters Lounge Ltd | Hospitality | 2025 |
| Ebenta Business Solution Ltd | Professional & scientific | 2025 |
| Ebfam | Health & social care | 2004 |
| EBM - Papst UK Limited | Manufacturing | 1975 |
| EBO Design & Build Ltd | Administrative & support | 2004 |
| EC Globalbay Ltd | Wholesale & retail | 2026 |
| EC Lighthouse Limited | Education | 2007 |
| EC3 Capital Partners Limited | Financial services | 2024 |
| Echo Bay Stratford Upon Avon Limited | Real estate | 2018 |
| Echoes Limited | Administrative & support | 2016 |
| Echoing Dreams Ltd | Wholesale & retail | 2024 |
| ECL Integrated Solutions Limited | Wholesale & retail | 2001 |
| Eclectic Corporation Limited | Water & waste | 1989 |
| Eclipse Consultants Ltd | Professional & scientific | 2007 |
| Ecoboost Limited | Hospitality | 2017 |
| Ecoloopuk Ltd | Construction | 2021 |
| Ecom Pluse Ltd | Wholesale & retail | 2026 |
| Ecom Root Ltd | Wholesale & retail | 2026 |
| Ecom Wizard Ltd | Wholesale & retail | 2022 |
| Ecomalexa Ltd | Wholesale & retail | 2026 |
| Ecombyte Ltd | Wholesale & retail | 2026 |
| Ecommrz Ltd | Wholesale & retail | 2026 |
| Econaz Limited | Professional & scientific | 2009 |
| Economy Cars & Commercials Limited | Wholesale & retail | 2003 |
| Econova Construction Limited | Construction | 2025 |
| Ecordea Ltd | Professional & scientific | 2020 |
| Ecreet 247 Ltd | Wholesale & retail | 2024 |
| Eden College of Human Resource Development and Management Studies Limited | Education | 2000 |
| Eden Independent Financial Advisers Limited | Financial services | 2005 |
| Eden Property Maintenance Limited | Construction | 2006 |
| Eden River (Plasterers) Ltd | | 1985 |
| Edifice Limited | Professional & scientific | 2005 |
| Edificio Developments Limited | Construction | 2006 |
| Edinburgh House Right to Manage Company Limited | Households | 2023 |
| Edme Limited | Extraterritorial | 1920 |
| Edmund Carr LLP | | 2008 |
| Educon UK Solutions Ltd | Administrative & support | 2025 |
| Edwards Dunn Investments Ltd | Real estate | 2012 |
| EDY Building Services Ltd | Construction | 2020 |
| Eeforce Limited | Administrative & support | 2007 |
| Eetools Ltd | Manufacturing | 2019 |
| Eferian Limited | Other services | 2011 |
| Effective Care Solutions Limited | Public administration | 2018 |
| Efficient Support Systems Limited | Information & communication | 1997 |
| EFW 21 Renewable Energy (Project 2 Ireland) UK Ltd | Extraterritorial | 2024 |
| EFW 21 Renewable Energy (Project 2) UK Ltd | Extraterritorial | 2024 |
| EIS Computing Limited | Information & communication | 2003 |
| Ekong International (UK) Limited | Wholesale & retail | 2005 |
| EKP Medical Limited | Health & social care | 2024 |
| ELA TR Limited | Hospitality | 2011 |
| Elacho Ltd | Wholesale & retail | 2026 |
| Elaine Coggins Legacy Home Limited | Real estate | 2025 |
| Elara Healthcare Limited | Wholesale & retail | 2026 |
| Elbasil -2 CHI RAD Precision Reporting Ltd | Transport & logistics | 2023 |
| ELC Construction Ltd | Construction | 2013 |
| Eldee Integrated UK Limited | Wholesale & retail | 2026 |
| Electracore Limited | Construction | 2026 |
| Electronic Communication Systems Ltd | Manufacturing | 2024 |
| Electronic Security & Data Limited | Information & communication | 2005 |
| Electronic Surgery Limited | Information & communication | 1999 |
| Elephant IT Solutions Ltd | Information & communication | 2020 |
| Elevate Norm Ltd | Wholesale & retail | 2025 |
| Elevate Prospecting Ltd | Information & communication | 2026 |
| Elexo Ltd | Wholesale & retail | 2024 |
| Elfort Limited | Real estate | 2020 |
| Elhap | Health & social care | 1999 |
| Elimamba Digital Agency Ltd | Wholesale & retail | 2025 |
| Elimwells Ltd | Health & social care | 2005 |
| Eliptica Limited | Professional & scientific | 2022 |
| Elisagene Solutions Limited | Wholesale & retail | 2025 |
| Elite Amsaal Ltd | Wholesale & retail | 2026 |
| Elite Basket Limited | Wholesale & retail | 2026 |
| Elite Buy Shop Ltd | Wholesale & retail | 2026 |
| Elite Clockhouse Limited | Construction | 2023 |
| Elite Contract Services Ltd | Information & communication | 1993 |
| Elite Emergency Medical Services Ltd | Health & social care | 2011 |
| Elite Homes South Limited | Construction | 2023 |