| ELF International Limited | Wholesale & retail | 1968 |
| Elftone Electronics Limited | Extraterritorial | 2006 |
| Elhakeem Limited | Real estate | 2019 |
| Elham & Issa Jewellery Limited | Manufacturing | 2016 |
| Eliad & Gozzard Healthcare Ltd | Real estate | 2012 |
| Eliali MPC Limited | Health & social care | 2016 |
| Elibs Heights Limited | Wholesale & retail | 2025 |
| Elieah HR Consultancy Limited | Professional & scientific | 2018 |
| Elim Enterprises Ltd | Transport & logistics | 2024 |
| Elinah Consulting Ltd | Professional & scientific | 2018 |
| Elinica Limited | Wholesale & retail | 2023 |
| Elisha's Homes Ltd | Real estate | 2024 |
| Elite Aura Homes Ltd | Construction | 2025 |
| Elite BIZ Corporate Services Provider Limited | Professional & scientific | 2025 |
| Elite Business Concepts Limited | Wholesale & retail | 2023 |
| Elite Corporate Cleaning Services Ltd | Administrative & support | 2026 |
| Elite Driveways and Patios Ltd | Administrative & support | 2025 |
| Elite Electrics (Herts) Limited | Construction | 2008 |
| Elite Fire & Security Solutions Ltd | Construction | 2025 |
| Elite Guardianship Ltd | Administrative & support | 2018 |
| Elite Line Cars Limited | Transport & logistics | 2024 |
| Elite Medics Healthcare Limited | Health & social care | 2016 |
| Elite Performance Studio's Ltd | Wholesale & retail | 2020 |
| Elite Premier Services Ltd | Administrative & support | 2025 |
| Elite Property Assets LLP | | 2013 |
| Elite Smiles Dental and Beauty Limited | Health & social care | 2022 |
| Elite Spotless Solutions Ltd | Administrative & support | 2023 |
| Elitecraft Services Ltd | Construction | 2026 |
| Elixir Developments Ltd | Professional & scientific | 2019 |
| Elizabeth Court (Watford) Management Limited | Households | 1969 |
| Elizabeth Higgins Language Services Limited | Administrative & support | 1996 |
| Elizabeth Higgins Recruitment Services Ltd | Administrative & support | 1997 |
| Elkridge Associates Ltd. | Information & communication | 2007 |
| Ellacol Limited | Wholesale & retail | 2013 |
| Ellebanna Limited | Real estate | 2004 |
| Ellecco Properties Limited | Real estate | 2019 |
| Ellemm Consulting Ltd | Professional & scientific | 2014 |
| Ellepharm Investments Limited | Financial services | 2018 |
| Ellerton Lodge Limited | Households | 1995 |
| Elleón Healthcare Services Ltd | Wholesale & retail | 2026 |
| Ellie and Tony Investments Limited | Administrative & support | 2016 |
| Ellie and Tony Property Limited | Real estate | 2015 |
| Ellie Baker Limited | Other services | 2023 |
| Ellina Consulting Limited | Administrative & support | 2016 |
| Elliott AI Consulting Ltd | Information & communication | 2026 |
| Ellis FIC Limited | Financial services | 2025 |
| Ellis&Co Ltd | Construction | 2023 |
| ELM Walk 2025 Limited | Construction | 2025 |
| Elmcroft Construction Ltd | Construction | 2018 |
| Elmoura Ltd | Administrative & support | 2026 |
| Elms Real Estates Ltd | Real estate | 2020 |
| Elmsfleet Limited | Real estate | 1989 |
| Elsg Ltd | Professional & scientific | 2002 |
| Elshama Consulting Limited | Information & communication | 2016 |
| Elspeth Baby UK Limited | Wholesale & retail | 2025 |
| Elstree Home Care Ltd | Health & social care | 2019 |
| Elstree Life Ltd | Professional & scientific | 2021 |
| Elton Budo Ltd | Hospitality | 2021 |
| Eltonomie Limited | Information & communication | 2019 |
| Eltrak CP Limited | Financial services | 2019 |
| Elvie Premium Cleaning Services Ltd | Administrative & support | 2019 |
| Elyon-Elishama Consulting Limited | Information & communication | 2022 |
| Elysian Consulting Ltd | Administrative & support | 2017 |
| EM Plumbing and Heat Ltd | Construction | 2024 |
| EM Star Advisory Ltd | Professional & scientific | 2025 |
| EM Star Consulting Ltd | Professional & scientific | 2025 |
| EM Top Notch Services Limited | Professional & scientific | 2025 |
| Email My Gifts Limited | Professional & scientific | 2013 |
| Emanation Global Entertainment Ltd | Information & communication | 2024 |
| Embassy Lodge (Finchley) Limited | Real estate | 1991 |
| Embr Group Ltd | Hospitality | 2020 |
| Embrace Care Homes Limited | Financial services | 2021 |
| Embu Accommodations Ltd | Real estate | 2024 |
| EMC International Group Limited | Professional & scientific | 2015 |
| Emedcare Ltd | Health & social care | 2023 |
| Emelec Building Services Ltd | Construction | 2013 |
| Emerald Valley Ltd | Financial services | 2024 |
| Emerge Agency Group Ltd | Professional & scientific | 2026 |
| Emetis Consulting Ltd | Real estate | 2025 |
| EMF Testing Ltd | Professional & scientific | 2020 |
| Eminence Homes Ltd | Real estate | 2019 |
| Eminent Objects Ltd | Information & communication | 2014 |
| Emix Ltd | Wholesale & retail | 2020 |
| EMK Design Limited | Professional & scientific | 2016 |
| Emmabox Ltd | Wholesale & retail | 2019 |
| Emmaelinor Limited | Health & social care | 2019 |
| Emmi Property Services Limited | Households | 2025 |
| Emoi Limited | Information & communication | 2018 |
| Emotion Architects Ltd | Professional & scientific | 2022 |
| Empathia Consultancy Ltd | Information & communication | 2026 |
| Empatia Professionals Limited | Professional & scientific | 2008 |
| Empire Ealing Ltd | Construction | 2023 |
| Empire Oriole Ltd | Information & communication | 2017 |
| Empire Paving Ltd | Construction | 2019 |
| Empire Tech Overseas Group Limited | Professional & scientific | 2020 |
| Employment Law Services Limited | Information & communication | 2000 |
| Empowered Legal Resolutions Ltd | Professional & scientific | 2024 |
| Empress Media Ltd | Professional & scientific | 2021 |
| EMS001 Ltd | Professional & scientific | 2016 |
| Emsea Investments Ltd | Wholesale & retail | 2012 |