| DUO Entertainment UK Limited | Wholesale & retail | 2025 |
| DUO Medical & Dental Aesthetics Ltd | Health & social care | 2018 |
| Durdent Properties Ltd | Real estate | 2017 |
| Duskyworld Limited | Real estate | 1986 |
| Dust CUT Ltd | Administrative & support | 2024 |
| Dutt Diagnostics Limited | Professional & scientific | 2024 |
| Duvals DRY Cleaners Ltd | Other services | 2025 |
| DVS Tiling Limited | Construction | 2024 |
| DW Transport Services Ltd | Transport & logistics | 2026 |
| Dwellnova Limited | Real estate | 2022 |
| DYA Investments Ltd | Real estate | 2020 |
| Dydu Transport Ltd | Transport & logistics | 2016 |
| Dynamic Aspect Ltd | Real estate | 2024 |
| Dynamic DUO Properties Ltd | Construction | 2025 |
| Dynamic Food Safety Solutions Ltd | Hospitality | 2022 |
| Dynamics Werx Limited | Manufacturing | 2023 |
| Dynamix Solutionz Ltd | Administrative & support | 2009 |
| Dynasty Food Supplies Ltd | Wholesale & retail | 2026 |
| Dötch Club Ltd | Wholesale & retail | 2018 |
| E & L Consulting Limited | Health & social care | 2021 |
| E B a Civils Ltd | Real estate | 2007 |
| E Come Store Limited | Wholesale & retail | 2025 |
| E Marketplace Limited | Wholesale & retail | 2025 |
| E Revolution Ltd | Wholesale & retail | 2020 |
| E&E Bereket Ltd | Transport & logistics | 2021 |
| E&Rrecruitment Ltd | Other services | 2017 |
| E-Mobile Limited | Wholesale & retail | 2022 |
| E-Purchase Solutions Ltd | Administrative & support | 2012 |
| E. Dent & Co Limited | Manufacturing | 2006 |
| E.A. Properties Empire Ltd | Real estate | 2021 |
| E.B. Management Services Ltd | Professional & scientific | 2025 |
| E.D.C. Lord & Co. (Holdings) Limited | Administrative & support | 2019 |
| E.D.C. Lord & Co. Ltd | Extraterritorial | 2007 |
| E.D.C. Lord Management | Professional & scientific | 1986 |
| E.King Limited | Real estate | 1956 |
| E.Mills & Son(Linoleum)Limited | Wholesale & retail | 1954 |
| E.W. Technology Limited | Construction | 1990 |
| E@B Car Valet Ltd | Wholesale & retail | 2018 |
| Eaco Security Limited | Administrative & support | 2022 |
| Eagle Cross Ltd | Wholesale & retail | 2026 |
| Eagle Plumbers Housing Ltd | Real estate | 2021 |
| Ealing College Upper School Limited | Education | 1985 |
| Eapps Global Ltd | Information & communication | 2019 |
| Eapps Technologies Limited | Information & communication | 2010 |
| Earl Close Clifton Management Company Limited | Households | 2020 |
| Earls Management Company Limited | Households | 2016 |
| Earlydress Limited | Manufacturing | 1914 |
| Earthmates Construction Limited | Construction | 2023 |
| Earthmates Corporate Services Limited | Water & waste | 2024 |
| Earthmates Real Estate Limited | Real estate | 2026 |
| Earthmates Security Limited | Administrative & support | 2025 |
| Easey Herds Limited | Agriculture & fishing | 2008 |
| Easey Holdings Limited | Professional & scientific | 2007 |
| Easey Pigs Limited | Agriculture & fishing | 2008 |
| East Anglian Waste Management Ltd | Water & waste | 2025 |
| East Avenue Property Ltd | Real estate | 2025 |
| East London Plastering Ltd | Construction | 2022 |
| East West Timber (London) Limited | Wholesale & retail | 1980 |
| Eastbay Incorporated Ltd | Information & communication | 2021 |
| Eastwest Solutions Ltd | Transport & logistics | 2025 |
| Easy 2 Pass Ltd | Education | 2022 |
| Easy Deal Export Ltd | Wholesale & retail | 2025 |
| Easy Vehicle Maintenance Limited | Wholesale & retail | 2011 |
| Easy Workforce Limited | Administrative & support | 2025 |
| Easybayparking Ltd | Hospitality | 2025 |
| EAT Social Ltd | Hospitality | 2021 |
| Eazy-Ev Ltd | Wholesale & retail | 2020 |
| EBDMA1 Ltd | Financial services | 2025 |
| EBN Accountants Limited | Professional & scientific | 2016 |
| EBONY1 Ltd | Wholesale & retail | 2014 |
| Ebrit Fire Protection Limited | Construction | 2014 |
| Ebrit Fire Solutions Ltd | Construction | 2024 |
| EBS International Ltd | Wholesale & retail | 2025 |
| Ebury Gate Management Company Limited | Households | 1987 |
| EC1 Residences Limited | Administrative & support | 2005 |
| EC1R JV Co Limited | Construction | 2024 |
| EC1R MB Co Limited | Construction | 2024 |
| EC1R MH Co Limited | Construction | 2024 |
| EC1R SH Co Limited | Construction | 2024 |
| Echo Accountants Ltd | Professional & scientific | 2020 |
| Echo Capital Holdings Ltd | Financial services | 2025 |
| Echo Property Group Ltd | Hospitality | 2025 |
| ECI Ecigs Ltd | Wholesale & retail | 2017 |
| Eclipze Consultancy Ltd | Administrative & support | 2018 |
| ECM Developers Ltd | Construction | 2015 |
| ECM Scenery Ltd | Arts & recreation | 2023 |
| Eco Estates Ltd | Real estate | 2026 |
| Eco Fountain UK Ltd | Wholesale & retail | 2019 |
| Eco GG Ltd | Construction | 2023 |
| Eco Hybrid Motors Limited | Wholesale & retail | 2018 |
| Eco Sloth Ltd | Wholesale & retail | 2022 |
| Eco Voltex Ltd | Construction | 2024 |
| Eco-Iconic Ltd | Administrative & support | 2023 |
| Ecobiz Trades Ltd | Wholesale & retail | 2025 |
| Ecoco Everyday UK Ltd | Wholesale & retail | 2025 |
| Ecoearner Limited | Professional & scientific | 2024 |
| Ecoforce Pest Management UK Ltd | Agriculture & fishing | 2024 |
| Ecologico Ltd | Administrative & support | 2016 |
| Ecomotive Motors Ltd | Wholesale & retail | 2025 |
| Ecore UK Construction Ltd | Construction | 2007 |