| EPC Energy Consultancy Ltd | Administrative & support | 2006 |
| EPI Consulting Ltd | Professional & scientific | 2021 |
| Epic Bars (Bangor) Ltd | Hospitality | 2019 |
| Epic Bars (Bath NO. 2) Ltd | Hospitality | 2025 |
| Epic Bars (Bath) Ltd | Hospitality | 2003 |
| Epic Bars (Berkshire) Ltd | Hospitality | 2021 |
| Epic Bars (Blackpool) Ltd | Hospitality | 2019 |
| Epic Bars (Cheltenham NO. 2) Ltd | Hospitality | 2023 |
| Epic Bars (Cheltenham) Ltd | Hospitality | 2021 |
| Epic Bars (Colchester) Ltd | Hospitality | 2023 |
| Epic Bars (Durham) Ltd | Hospitality | 2026 |
| Epic Bars (Epsom) Ltd | Hospitality | 2024 |
| Epic Bars (Gloucester) Ltd | Hospitality | 2024 |
| Epic Bars (Guildford) Ltd | Hospitality | 2023 |
| Epic Bars (Hereford) Ltd | Hospitality | 2023 |
| Epic Bars (High Wycombe) Ltd | Hospitality | 2019 |
| Epic Bars (Ipswich) Ltd | Hospitality | 2026 |
| Epic Bars (Macclesfield) Ltd | Hospitality | 2023 |
| Epic Bars (Maidstone) Ltd | Hospitality | 2022 |
| Epic Bars (New NO. 2) Ltd | Hospitality | 2026 |
| Epic Bars (Plymouth) Ltd | Hospitality | 2026 |
| Epic Bars (Salisbury) Ltd | Hospitality | 2022 |
| Epic Bars (Southampton) Ltd | Hospitality | 2021 |
| Epic Bars and Clubs Group Ltd | Financial services | 2022 |
| Epic Bars and Clubs Ltd | Professional & scientific | 2019 |
| Epindex Ltd | Information & communication | 2009 |
| Epithelia Ltd. | Wholesale & retail | 2019 |
| Epitogenx Limited | Financial services | 2022 |
| Epoch AI Consulting Ltd | Information & communication | 2025 |
| Epoch Metabolic Limited | Health & social care | 2026 |
| Epsg (Barnstaple) Ltd | Hospitality | 2024 |
| Epsg (Basingstoke) Ltd | Hospitality | 2024 |
| Epsg (Fleet) Ltd | Hospitality | 2024 |
| Epsg (Nuneaton) Ltd | Hospitality | 2024 |
| Epsg (Shrewsbury) Ltd | Hospitality | 2024 |
| Epsg (Taunton) Ltd | Hospitality | 2024 |
| Epsom Downs Racecourse Limited | Professional & scientific | 1983 |
| Epsom Grand Stand Association Limited(The) | Professional & scientific | 1904 |
| Epsom Racecourse Hotel Company Limited | Hospitality | 2007 |
| Equerry Consulting Ltd. | Professional & scientific | 2016 |
| Equestrian and Farming Innovations Limited | Other services | 1995 |
| Equestrian Hire Limited | Wholesale & retail | 2013 |
| Equilibrium Designs Limited | Extraterritorial | 2017 |
| Equine Register Limited | Information & communication | 2013 |
| Equinicity Ltd | Energy | 2018 |
| Equity & Provident Limited | Financial services | 2018 |
| Equity Harbour Limited | Professional & scientific | 2010 |
| Equity Stake Holdings Limited | Construction | 2024 |
| Equity Ventures (South West) Nominees Limited | Financial services | 1993 |
| Equity Ventures Consultants Ltd | Professional & scientific | 2018 |
| Erami Ltd | Arts & recreation | 2026 |
| ERG Property Holdings Ltd | Real estate | 2024 |
| ERH Limited | Financial services | 2015 |
| Eric DE Souza Consulting Ltd | Information & communication | 2024 |
| Eriksons Limited | Construction | 1993 |
| Ernaspark Ltd | Information & communication | 2019 |
| ERP Design LED Ltd | Professional & scientific | 2026 |
| Errand Buddyz Ltd | Wholesale & retail | 2025 |
| ES the Environmental Solutions Company Ltd. | Professional & scientific | 1998 |
| Esak Limited | Real estate | 2017 |
| Escapes by Helen Ltd | Administrative & support | 2026 |
| Esceap Ltd | Hospitality | 2022 |
| ESJ Construction Ltd | Construction | 2010 |
| Eska Wata Ltd | Manufacturing | 2025 |
| ESL Apartments Limited | Real estate | 2014 |
| Esmay Services Ltd | Construction | 2019 |
| Esme Rose Beauty Ltd | Other services | 2026 |
| Esoterica Designs Limited | Wholesale & retail | 2025 |
| Espoir Properties Limited | Financial services | 2023 |
| Esprofiler Ltd | Information & communication | 2020 |
| Essense UK Limited | Professional & scientific | 2025 |
| Essential Aesthetics Ltd | Health & social care | 2016 |
| Essential Space CIC | Health & social care | 2020 |
| Essential Space Counselling and Training Ltd | Health & social care | 2025 |
| Essex Direct Cremations Limited | Health & social care | 2022 |
| Establish Your Kingdom Ltd | Administrative & support | 2016 |
| Estate Agency Holdings Limited | Real estate | 2025 |
| Estate Photos Ltd | Professional & scientific | 2026 |
| Estaterise Limited | Information & communication | 2015 |
| Estcourt Gardens (Managers) Limited | Households | 1976 |
| Estelat Limited | Hospitality | 2025 |
| Estimating & Surveying Solutions Limited | Professional & scientific | 2008 |
| Etch Associates Group Ltd | Financial services | 2026 |
| Etecnicus Ltd. | Manufacturing | 2013 |
| Eternal Ayurveda Ltd | Health & social care | 2025 |
| Ethical Addictions Ltd | Wholesale & retail | 2006 |
| Ethical and Environmental Screening Services Limited | Financial services | 1998 |
| Ethical Direct Ltd | Hospitality | 2011 |
| Ethical Independent Advice Limited | Extraterritorial | 2002 |
| Ethical Indexes Limited | Financial services | 2025 |
| Ethical Investors (UK) Limited | Financial services | 1993 |
| Ethical Investors Group Limited | Extraterritorial | 1998 |
| Ethical Investors Limited | Extraterritorial | 1998 |
| Ethical Screening Limited | Extraterritorial | 2001 |
| Ethical Screening Services Limited | Extraterritorial | 1998 |
| Ethical Training Company Limited | Extraterritorial | 2002 |
| Ethical Wealth Management Limited | Extraterritorial | 2002 |
| Ethos Limited | Extraterritorial | 1999 |
| Etsaw Ventures Limited | Professional & scientific | 2022 |
| Ettore Bugatti Automobiles Limited | Arts & recreation | 1977 |