| DSP Utilities Limited | Construction | 2020 |
| DSW Studio Ltd | Professional & scientific | 2023 |
| DT Building & Interiors Limited | Construction | 2023 |
| DUB Building Limited | Construction | 2012 |
| Dudley Property Investments Ltd | Real estate | 2009 |
| Dulwich DIY Limited | Wholesale & retail | 2012 |
| Dundee Derm Ltd | Wholesale & retail | 2025 |
| Duong LE Limited | Wholesale & retail | 2023 |
| Durham House Management Limited | Real estate | 2013 |
| DYB Rugby Limited | Arts & recreation | 2015 |
| Dynamiq Advisors Ltd | Information & communication | 2026 |
| E Whale Boxing Ltd | Arts & recreation | 2024 |
| E.F.Planning Ltd | Professional & scientific | 2014 |
| E13 Advisors Ltd | Professional & scientific | 2025 |
| E20 Cleaning Co Ltd | Administrative & support | 2026 |
| Eacompany Limited | Construction | 2025 |
| EAR EAR Limited | Information & communication | 2007 |
| Earthtech Groundworks and Machines Limited | Construction | 2024 |
| Eastpoint Block a RTM Company Ltd | Households | 2010 |
| Eastpoint Block B RTM Company Ltd | Households | 2010 |
| Eastpont Limited | Information & communication | 2024 |
| Eastside Attire Ltd | Wholesale & retail | 2019 |
| Easyspread Plastering & Maintenance Limited | Construction | 2019 |
| Eaton Court (Chislehurst) Management Limited | Households | 1978 |
| Eatsleepgamerepeat Ltd | Wholesale & retail | 2022 |
| EB Holding Group Ltd | Financial services | 2024 |
| Eblex Group Ltd | Administrative & support | 2025 |
| Ebyhealthcare Ltd | Health & social care | 2023 |
| Echoshield Security Ltd | Administrative & support | 2025 |
| Eco Elite Services Ltd | Wholesale & retail | 2015 |
| Eco Property Services (West Midlands) Limited | Real estate | 2017 |
| Eco Taxis Limited | Real estate | 2008 |
| ECS Escalator Cleaning Services Ltd | Administrative & support | 2024 |
| ECU Technologies London Limited | Manufacturing | 2023 |
| Eden Carpentry and Joinery Limited | Manufacturing | 2025 |
| Eden IVY Care Limited | Health & social care | 2019 |
| Editmonkey Media Limited | Administrative & support | 2010 |
| EDN Building Constructions Ltd | Construction | 2023 |
| Edulite Limited | Information & communication | 2024 |
| Edway Environmental Services Ltd | Other services | 2025 |
| Eecomplex Ltd | Wholesale & retail | 2026 |
| Efcis Bexley Ltd | Financial services | 2010 |
| Effectively Ltd | Professional & scientific | 2018 |
| EJ Osteo Ltd | Health & social care | 2026 |
| Ej&Ea Services Limited | Construction | 2015 |
| EL Paso Films Ltd | Information & communication | 2024 |
| Elaina's Property Limited | Real estate | 2025 |
| Elcoa Homes Ltd | Real estate | 2020 |
| Elcoa Limited | Real estate | 2019 |
| Elderly Care Services Group Ltd | Health & social care | 2025 |
| Elecgo Ltd | Construction | 2021 |
| Elecom UK Limited | Wholesale & retail | 2026 |
| Elecro London Ltd | Professional & scientific | 2021 |
| Electric 24 Limited | Construction | 2019 |
| Electricfix Science Ltd | Construction | 2015 |
| Electro Avionics (Kent) Ltd | Manufacturing | 2020 |
| Elemental Property Holdings Limited | Financial services | 2026 |
| Elia Health Limited | Wholesale & retail | 2024 |
| Elias Commercial Services Ltd | Construction | 2018 |
| Elite Paving and Landscaping Limited | Administrative & support | 2016 |
| Elite Thermal Limited | Construction | 2020 |
| Elite Tree Care & Gardening Services Ltd | Administrative & support | 2011 |
| Elitecruit Ltd | Administrative & support | 2025 |
| Elldon Ltd | Professional & scientific | 2026 |
| Ellis Associates (Bexley) Limited | Construction | 2002 |
| Ellis Controls Limited | Construction | 2008 |
| Elowsys Ltd | Information & communication | 2018 |
| ELR Plumbing and Heating Limited | Construction | 2022 |
| EMC Roofing & Building Services Ltd | Construction | 2021 |
| EMC Roofing & Cladding Ltd | Construction | 2013 |
| Emergency Rescue UK Ltd | Public administration | 2024 |
| Emery Associates Limited | Construction | 2025 |
| Empowering Therapy Ltd | Health & social care | 2022 |
| ENSUITE2GO Limited | Administrative & support | 2023 |
| EP Advisory Limited | Professional & scientific | 2026 |
| Epmn Ltd | Real estate | 2026 |
| Equal Grounds Gardening Limited | Administrative & support | 2025 |
| Equine Waste Solutions Ltd | Transport & logistics | 2023 |
| Erco Consultants Limited | Information & communication | 2016 |
| Erith Cars Limited | Information & communication | 2005 |
| Erith Construction Ltd | Construction | 2019 |
| Esco IT Consulting Limited | Information & communication | 2016 |
| Essyn Life and Style Ltd | Wholesale & retail | 2019 |
| European Freight BUS Ltd | Transport & logistics | 2026 |
| EVC Electrical Installations Ltd | Construction | 2019 |
| EVC Kilt Limited | Financial services | 2022 |
| Everest Heating & Plumbing Ltd | Construction | 2017 |
| Everglades Court Management (Bromley) Limited | Households | 1972 |
| Everglades Freehold Limited | Households | 2013 |
| Evering Developments Mgnt Co Ltd | Households | 2023 |
| Exascalar Solutions Ltd. | Information & communication | 2013 |
| Excel & Valor Limited | Real estate | 2023 |
| Excelomics Ltd | Education | 2024 |
| Excelsis Training Limited | Education | 2014 |
| Expert Fixers Ltd | Other services | 2020 |
| Expert Property Projects Ltd | Other services | 2024 |
| Extratime Productions Limited | Information & communication | 2005 |
| Extreme Windows Limited | Manufacturing | 2019 |
| Eyre-Tech Limited | Information & communication | 2010 |
| Ezigbo & Co Ltd | Real estate | 2020 |