| EAC Asset Finance Limited | Financial services | 2019 |
| Eagle Partners Ltd | Real estate | 2022 |
| EAM Property Group Ltd | Construction | 2026 |
| Earth & Essence Wellness Limited | Health & social care | 2025 |
| East Mill Development Ltd | Real estate | 2016 |
| Eastern Management Limited | Real estate | 1960 |
| Easy NET Services Ltd | Information & communication | 2023 |
| EAT Your Hearts OUT! UK Limited | Hospitality | 1995 |
| Eaton Road (Enfield) Management Company Limited | Households | 2013 |
| Eazy Management Consultants Ltd | Wholesale & retail | 2015 |
| Ebenezer House (Ventures) Limited | Wholesale & retail | 2021 |
| Ebonhill Property Management Limited | Real estate | 2000 |
| Echo Marketing Limited | Information & communication | 2018 |
| Echo Productions Holdings Limited | Administrative & support | 2023 |
| Eclectic Sounds Limited | Administrative & support | 2007 |
| Eco Delicatessen Limited | Wholesale & retail | 2017 |
| Eco Electric Solutions Limited | Construction | 2014 |
| Eco-Iglass (UK) Ltd | Administrative & support | 2013 |
| Edell Ltd | Wholesale & retail | 2020 |
| Edge International UK Limited | Financial services | 2006 |
| Editions Graphiques Limited | Wholesale & retail | 1965 |
| Edmondson Advisory Limited | Professional & scientific | 2018 |
| Eduard & Aida Homes Ltd | Real estate | 2022 |
| Educationappeals Dotcom Ltd | Education | 2008 |
| Eduplanet Limited | Education | 2011 |
| Efesta Ltd | Wholesale & retail | 2026 |
| EFP Property Holdings Limited | Real estate | 2026 |
| Efthymiou Investments Ltd | Real estate | 2025 |
| Eglington Construction Ltd | Construction | 2014 |
| Egopetram Limited | Professional & scientific | 2015 |
| Egss Technologies Limited | Information & communication | 2016 |
| Eimia Consulting Ltd | Real estate | 2021 |
| Eizabeth Kenneth Ltd | Real estate | 2025 |
| Ekotrans Invest Limited | Agriculture & fishing | 2008 |
| Ekwenu Limited | Professional & scientific | 2021 |
| EL ROI Hope Project CIC | Arts & recreation | 2025 |
| Elblade Limited | Administrative & support | 2019 |
| Elea Contruction Ltd | Administrative & support | 2026 |
| Elebex LP | | 2014 |
| Electrical Mart Limited | Construction | 2025 |
| Electrigent Ltd | Professional & scientific | 2022 |
| Electro Expo Ltd. | Manufacturing | 1981 |
| Electro Mate Limited | Extraterritorial | 2012 |
| Elegant Thai Massage Therapy Limited | Other services | 2025 |
| Elementera Ltd | | 2015 |
| Eleni Retail Ltd | Wholesale & retail | 2024 |
| Elevate Male Image Ltd | Other services | 2025 |
| Elevations Broker Alliance Limited | Professional & scientific | 2008 |
| Elevations Express Limited | Professional & scientific | 2004 |
| Elevations Underwriting Limited | Professional & scientific | 2002 |
| Elgor Limited | Financial services | 2021 |
| ELI Property Management Limited | Administrative & support | 2014 |
| Elida Nicole Design Ltd | Administrative & support | 2020 |
| Elind Sports Communications Limited | Arts & recreation | 2013 |
| Elite Leadership Development CIC | Administrative & support | 2016 |
| Elitebulk Ventures Limited | Wholesale & retail | 2024 |
| Elizabeth Lean Limited | Arts & recreation | 2025 |
| Elizabeth Scarlett Limited | Wholesale & retail | 2013 |
| Elizabeth Scarlett USA Ltd | Financial services | 2024 |
| Elizabeth Square Development Limited | Construction | 2020 |
| Elle James Interiors Ltd | Wholesale & retail | 2016 |
| Ellis & Company (Motors) Limited | Real estate | 1955 |
| Ellison Close Management Company Limited | Administrative & support | 2018 |
| Elmwood Wealth Limited | Financial services | 2018 |
| Elora Corporation Limited | Construction | 2000 |
| Elra Group Ltd | Real estate | 2020 |
| Elro Associates Ltd | Professional & scientific | 2011 |
| Elthorne Properties Limited | Construction | 1982 |
| Elusive Professional Solutions Ltd | Administrative & support | 2020 |
| Elyssian Care Ltd. | Health & social care | 2016 |
| Elyte Limited | Construction | 2002 |
| EM Electrics Ltd | Construction | 2022 |
| EM Engineering Ltd | Professional & scientific | 2025 |
| Embassy Estates Limited | Real estate | 2011 |
| Emerald Forest Group Limited | Professional & scientific | 2022 |
| EMG Properties Ltd. | Real estate | 2022 |
| Emia London Limited | Other services | 2011 |
| Emily R.E. Ltd | Real estate | 2019 |
| Emma Stewart Holdings Limited | Financial services | 2024 |
| Emma Stewart Interiors Limited | Wholesale & retail | 2019 |
| Emporio Filiou Ltd | Administrative & support | 2018 |
| Empowerpath Solutions Limited | Professional & scientific | 2025 |
| Emslie Holdings Limited | Real estate | 2025 |
| Emway Events Limited | Other services | 2018 |
| EN6 Catering Ltd | Hospitality | 2026 |
| Enchanted Floral Design Limited | Wholesale & retail | 2015 |
| Encounter Learning Centre Limited | Health & social care | 2012 |
| ENDUB2 Limited | Construction | 2024 |
| Energize Renewables Ltd | Other services | 2025 |
| Enfield Wines Limited | Wholesale & retail | 2025 |
| Enfieldian Coach Tours Limited | Extraterritorial | 1991 |
| ENG Kids Ltd | Education | 2014 |
| Engin Zekia LLP | | 2010 |
| Engineering Consulting Services Limited | Professional & scientific | 2019 |
| Enhance Dynamics Limited | Information & communication | 2018 |
| Enrico Healthcare Limited | Health & social care | 2014 |
| Ensim Ltd | Real estate | 2013 |
| Enterprise Property Services Ltd | Households | 2020 |
| Entertainment Broadcast Media and Performing Arts | Arts & recreation | 2021 |
| Entertainment United Ltd | Professional & scientific | 2022 |