| Dtau Limited | Information & communication | 2023 |
| DTB Trading Ltd | Professional & scientific | 2025 |
| Dtcf Limited | Professional & scientific | 2019 |
| Dtry Limited | Real estate | 2010 |
| DTV Trustees Limited | Administrative & support | 2022 |
| DU Barry Investments LLP | | 2011 |
| Du-Bowles Limited | Real estate | 2022 |
| Dubafrique Community Drummers and Dancers C.I.C. | Education | 2025 |
| Duca DEL Cosma (UK) Ltd | Wholesale & retail | 2017 |
| Duchy Investments EOT Limited | Financial services | 2023 |
| Duchy Investments Limited | Professional & scientific | 1998 |
| Duckster Media Limited | Information & communication | 2013 |
| Dunmow Salvage Limited | Wholesale & retail | 2022 |
| Dunning Brothers (I) Limited | Administrative & support | 2022 |
| Dunning Brothers (II) Limited | Wholesale & retail | 2020 |
| Dunning Brothers (III) Limited | Extraterritorial | 2011 |
| Dunning Brothers Limited | Real estate | 2004 |
| Dust Atlas Limited | Wholesale & retail | 2025 |
| Dust Design & Interiors Ltd | Professional & scientific | 2021 |
| Dusty's Cleaning Services Ltd | Administrative & support | 2016 |
| Duval Services Limited | Other services | 2016 |
| DVD Joinery Ltd | Construction | 2025 |
| Dvd-Nationwide Limited | Wholesale & retail | 2023 |
| Dvuk Ltd | Wholesale & retail | 2024 |
| DW Surface Specialists Limited | Construction | 2018 |
| DW Ventures Limited | Construction | 2016 |
| Dwist Ltd | Construction | 2025 |
| Dymaxion Technology Limited | Information & communication | 2018 |
| Dynamic Dimensions Design Ltd | Professional & scientific | 2015 |
| Dynamic IT Limited | Information & communication | 2016 |
| Dynamic Ventures Syndicate Limited | Construction | 2024 |
| Dynamic-Minds Counselling Ltd | Health & social care | 2021 |
| Dynes Drainage Limited | Construction | 2018 |
| Dyslexia Handled & Associates Ltd | Education | 2008 |
| E & Y Supply Ltd | Wholesale & retail | 2023 |
| E Afzal Trading Limited | Wholesale & retail | 2025 |
| E and H Logistics Limited | Transport & logistics | 2018 |
| E B Mortgage Solutions Ltd | Financial services | 2020 |
| E H S Reid Ltd | Wholesale & retail | 2018 |
| E L D Distribution Limited | Other services | 2008 |
| E Plus V Ltd | Transport & logistics | 2020 |
| E S Conversions Limited | Wholesale & retail | 2010 |
| E&J 101 Ltd | Real estate | 2026 |
| E&L Group Holdings Ltd | Financial services | 2022 |
| E&S Mechanical Ltd | Construction | 2021 |
| E-Mogee Limited | Information & communication | 2025 |
| E. & R. Fuller Limited | Agriculture & fishing | 1959 |
| E. L. Watson & Company Limited | Wholesale & retail | 2011 |
| E.B.Mallett Limited | Agriculture & fishing | 1959 |
| E.C.A Property Ltd | Real estate | 2025 |
| E.C.C.C. Limited | Arts & recreation | 1998 |
| E.D Ground Solutions Limited | Construction | 2015 |
| E.D.T Essex Driver Training Ltd | Education | 2025 |
| E.L.C. Utility ARB Limited | Agriculture & fishing | 2018 |
| E.P.S.U.S.C. Ltd | Education | 2018 |
| E.T. Marine & Industrial Engineering Company Limited | Manufacturing | 1989 |
| E.Wall Limited | Real estate | 1967 |
| E4EDUCATION Holdings Limited | Financial services | 2021 |
| E4EDUCATION Limited | Information & communication | 2001 |
| Eagle 456 Limited | Extraterritorial | 2000 |
| Eagle Motion Freight Ltd | Transport & logistics | 2026 |
| Eagle Property Services and Management Limited | Real estate | 2025 |
| Eagle View AI Limited | Administrative & support | 2023 |
| Eaglestar Limited | Construction | 2006 |
| Eagleview Contractors Group Limited | Construction | 2025 |
| EAH Cleaning Ltd | Administrative & support | 2024 |
| Eamaland Limited | Construction | 2024 |
| Earlsfield International Limited | Wholesale & retail | 2023 |
| Earlswood Holdings (Colchester) Limited | Construction | 2020 |
| Early Bird Gardening Limited | Arts & recreation | 2021 |
| Earth Trip Limited | Administrative & support | 2017 |
| Eass Estates Ltd | Real estate | 2025 |
| East Anglia Horse Box Hire Limited | Arts & recreation | 2022 |
| East Coast Direct Limited | Wholesale & retail | 2003 |
| East Coast Sail Trust | Administrative & support | 2008 |
| East Counties Construction Ltd | Construction | 2019 |
| East Gallops Residents Association Limited | Households | 1986 |
| East Hanningfield Properties Limited | Real estate | 2024 |
| East London Removals Ltd | Transport & logistics | 2018 |
| East of England Pest Control Limited | Other services | 2010 |
| East West Compass Limited | Construction | 2018 |
| East West Connect Limited | Construction | 1988 |
| East West Electric Limited | Professional & scientific | 2007 |
| East West Group Limited | Construction | 2006 |
| East-West Experience Limited | Education | 2017 |
| Eastbridge Consultancy Services Ltd | Professional & scientific | 2024 |
| Eastcoast Salvage UK Ltd | Extraterritorial | 2008 |
| Eastern Compressors Limited | Professional & scientific | 1965 |
| Eastern Counties Laundries Limited | Other services | 1930 |
| Eastern Crane Hire Limited | Administrative & support | 2016 |
| Eastern Data Group Limited | Information & communication | 1981 |
| Eastern Fabrications Building Services Limited | Construction | 1998 |
| Eastern Flourish Ltd | Financial services | 2026 |
| Eastern Recruitment Ltd | Administrative & support | 2020 |
| Eastern Region Business Partnerships Limited | Other services | 2021 |
| Eastleaf Ltd | Real estate | 2006 |
| Eastleaf Properties Limited | Real estate | 2017 |
| Eastment Virtual Productions Ltd | Information & communication | 2025 |
| Eastway Care Limited | Health & social care | 1996 |
| Eastwood Dental Services Limited | Health & social care | 2006 |