| EII Consulting Limited | Hospitality | 2004 |
| EIL (Spain) Limited | Professional & scientific | 2022 |
| EIN Es-Sultan Ltd | Hospitality | 2025 |
| Eiruon Limited | Information & communication | 2020 |
| EITY20 Limited | Health & social care | 2025 |
| EJ Construction Solution Limited | Construction | 2021 |
| EJ Enim Ltd | Professional & scientific | 2017 |
| EJ Imports and Exports Limited | Wholesale & retail | 2022 |
| EJ Projex Ltd | Information & communication | 2019 |
| Ejam Limited | Real estate | 2016 |
| Ejinfotech UK Limited | Information & communication | 2022 |
| EJM Consulting Solutions Limited | Information & communication | 2018 |
| EJM Groundworks Limited | Construction | 2011 |
| EJM Property Investments Ltd | Real estate | 2023 |
| EJS Commercial Limited | Construction | 2017 |
| EJS Logistics Limited | Transport & logistics | 2011 |
| EJS Storage Ltd | Transport & logistics | 2024 |
| EK Axis Construction Ltd | Construction | 2026 |
| EK Design Studio Ltd | Professional & scientific | 2014 |
| EKA International Limited | Professional & scientific | 2016 |
| Ekado Limited | Information & communication | 2009 |
| Ekatay Ltd | Information & communication | 2015 |
| Ekav Management Limited | Professional & scientific | 2024 |
| Ekco Birmingham Limited | Professional & scientific | 2008 |
| Ekco Bournemouth Limited | Information & communication | 2014 |
| Ekco Cloud (UK) Limited | Information & communication | 2003 |
| Ekco Cloud and Security Limited | Information & communication | 2013 |
| Ekco London Limited | Information & communication | 1993 |
| Ekco MSP (UK) Limited | Information & communication | 2011 |
| Ekco Nottingham Limited | Information & communication | 2009 |
| Ekco Reading Limited | Information & communication | 1996 |
| Ekco UK Holdings Limited | Financial services | 2017 |
| Ekcs UK Limited | Information & communication | 1998 |
| Ekeney Consulting Limited | Other services | 2022 |
| EKG Art Studio Ltd | Education | 2016 |
| Ekinox Consulting Ltd | Real estate | 2025 |
| Ekokleen Limited | Administrative & support | 2026 |
| Ekom Pharma Ltd | Manufacturing | 2018 |
| Ekta Clothing Ltd | Wholesale & retail | 2025 |
| Ekveera Infotech Ltd | Information & communication | 2018 |
| Ekveera Investments Limited | Real estate | 2026 |
| Ekya Consultancy Ltd | Information & communication | 2024 |
| EL - Nanys Ltd | Hospitality | 2025 |
| EL Dunami Limited | Construction | 2025 |
| EL J'Adore Ltd | Administrative & support | 2018 |
| EL ROI Premium Cleaning Ltd | Administrative & support | 2025 |
| EL Spanalero Technical Services Limited | Manufacturing | 2013 |
| El-Ahrairah Silflay Ltd | Real estate | 2025 |
| Eland Accounting Limited | Professional & scientific | 2023 |
| Elano Limited | Information & communication | 2020 |
| Elanton Limited | Administrative & support | 2011 |
| ELB Properties Limited | Construction | 2016 |
| Elba Cookers UK Limited | Wholesale & retail | 2017 |
| Elcam Property Maintenance Ltd | Construction | 2000 |
| Eldeeb for Import Export & TA Limited | Wholesale & retail | 2024 |
| Eldes Primary Care Ltd | Health & social care | 2011 |
| Eldmere Nominees Filing Ltd | Administrative & support | 2021 |
| Elected Care Limited | Health & social care | 2014 |
| Electric Fish Limited | Manufacturing | 2009 |
| Electrical, Plumbing & Fire Solutions Ltd | Manufacturing | 2016 |
| Electron - X Limited | Manufacturing | 2003 |
| Electron Volt Limited | Manufacturing | 2020 |
| Electronetix Limited | Information & communication | 2015 |
| Electronic Number Unified Mapping Ltd | Information & communication | 2011 |
| Electropossible Ltd | Construction | 2021 |
| Electus Professionals Ltd | Administrative & support | 2018 |
| Electworld Limited | Wholesale & retail | 2005 |
| Elefant Cafe Limited | Hospitality | 2025 |
| Elegance Beauty Salon Limited | Other services | 2003 |
| Elegancy Blinds Limited | Wholesale & retail | 2016 |
| Elegant Apartments Limited | Hospitality | 2022 |
| Elegant Crystal Limited | Wholesale & retail | 2024 |
| Elegant Vision Limited | Financial services | 2022 |
| Elegantissimo Limited | Wholesale & retail | 2014 |
| Elemag Ltd | Transport & logistics | 2018 |
| Element 10 Ltd | Information & communication | 2003 |
| Elements Automotive Ltd | Wholesale & retail | 2023 |
| Elements Heating Installations Limited | Construction | 2017 |
| Elements Windows & Doors MK Limited | Construction | 2023 |
| Elena Toma Limited | Professional & scientific | 2019 |
| Elenax Limited | Information & communication | 2010 |
| Elephant Connect Limited | Professional & scientific | 2011 |
| Elephunk Tusk Limited | Health & social care | 2026 |
| Elevate Care & Consult Ltd | Professional & scientific | 2025 |
| Elevate Care Ltd | Health & social care | 2017 |
| Elevate Engineering Compliance Ltd | Real estate | 2024 |
| Elevate Football Coaching Limited | Education | 2021 |
| Elevate Health and Wellness Coaching Ltd | Health & social care | 2025 |
| Elevate Strategy Consulting Ltd | Information & communication | 2025 |
| Elevatedesk Limited | Public administration | 2025 |
| Elevateux Design Limited | Information & communication | 2025 |
| Elevation Elite Ltd | Real estate | 2021 |
| Eleven Acres Ltd | Real estate | 2023 |
| Eleven One One Education CIC | Education | 2026 |
| Eleven Plus Specialists Ltd | Education | 2024 |
| Elevenology Publications Limited | Education | 2019 |
| Elevestate Ltd | Real estate | 2024 |
| Elevondata Labs Private Limited | Information & communication | 2022 |
| Elevoy Ltd. | Wholesale & retail | 2020 |
| ELF Within Self Ltd | Information & communication | 2025 |