| EBM Capital Ltd | Financial services | 2024 |
| EC Gardens Ltd | Administrative & support | 2014 |
| Ecclesall Holdings Limited | Financial services | 2017 |
| Ecclesall Properties Limited | Real estate | 1961 |
| ECM Law Limited | Professional & scientific | 2026 |
| ECS Environmental Limited | Construction | 2001 |
| ECS Hire Limited | Administrative & support | 2001 |
| ECS Transport Limited | Transport & logistics | 2001 |
| Edbc Ltd | Information & communication | 2026 |
| Edenbeck Facilities Limited | Transport & logistics | 2013 |
| Edenbeck Ltd | Water & waste | 2011 |
| Edkings Ltd | Households | 2008 |
| Edpsych Connect Limited | Professional & scientific | 2023 |
| EEE Coaching Ltd | Health & social care | 2024 |
| EEN Consulting Limited | Professional & scientific | 2012 |
| Egon Environmental Limited | Professional & scientific | 2011 |
| Einstein Films Limited | Information & communication | 2003 |
| ELC (Bourne END) Ltd | Hospitality | 2024 |
| ELC (Maidenhead) Ltd | Hospitality | 2024 |
| Eleant Pharma Consultants Limited | Other services | 2024 |
| Electric World Ltd | Wholesale & retail | 2011 |
| Electric-Call Ltd | Construction | 2003 |
| Elementshealth Ltd | Health & social care | 2026 |
| Eleven EL3V3N Ltd | Transport & logistics | 2025 |
| Eleven Productions Limited | Information & communication | 2014 |
| Elfan Media Ltd | Information & communication | 2020 |
| Elite Coaching Cafc Ltd | Arts & recreation | 2024 |
| Elite Leisure (Europe) Limited | Professional & scientific | 2003 |
| Elite Medical Response Limited | Wholesale & retail | 2024 |
| Elitus Health Ltd | Health & social care | 2024 |
| Elitus Limited | Health & social care | 2018 |
| Eliyaan Group Ltd | Wholesale & retail | 2025 |
| Ellas Pooch Parlour Limited | Other services | 2025 |
| Ellingford Ltd | Professional & scientific | 2004 |
| Eltorev Ltd | Professional & scientific | 2016 |
| Eltrain Limited | Information & communication | 2023 |
| Elup Ltd | Arts & recreation | 2024 |
| Elvis Stone Ltd | Construction | 2022 |
| Embrace Sustain & Able Limited | Other services | 2017 |
| Embracing Enterprise Limited | Professional & scientific | 1999 |
| Emma Hopkins Consultancy Ltd | Professional & scientific | 2022 |
| Emma Stevens Accountancy Limited | Professional & scientific | 2011 |
| Emmia Ltd | Professional & scientific | 2026 |
| EN Masse Services Ltd | Manufacturing | 2015 |
| END Ltd | Construction | 2019 |
| Energy Logic Controls Ltd | Professional & scientific | 2020 |
| Enfield Plant & Tool Hire Limited | Administrative & support | 2013 |
| Engelberg Investments Limited | Financial services | 2020 |
| Enhanced Property Services Limited | Administrative & support | 2018 |
| Epic Life Enterprises Limited | Professional & scientific | 2016 |
| ERA Bidco Limited | Financial services | 2022 |
| ERA Complete Building Services Limited | Construction | 2015 |
| ERA Holdco Limited | Financial services | 2022 |
| ERA Newco Limited | Financial services | 2022 |
| Ergo Limited | Information & communication | 1998 |
| Ergodyc Ltd | Information & communication | 2022 |
| Escape Hair Studio (Radlett) Limited | Other services | 2013 |
| Esimo Sports Ltd | Education | 2018 |
| Esin Packaging Ltd | Manufacturing | 2023 |
| ESR Professional Services Ltd | Professional & scientific | 2024 |
| Essential Building Services Limited | Construction | 2009 |
| Essential Depot Ltd | Extraterritorial | 2008 |
| Essential Roofing Services Limited | Professional & scientific | 2010 |
| Esskay Management & Accounting Services Limited | Professional & scientific | 2006 |
| Ethical Commercial Limited | Professional & scientific | 2018 |
| Ethos Plumbing & Heating Ltd | Construction | 2025 |
| Eubusiness Limited | Information & communication | 1999 |
| Euriscus Limited | Professional & scientific | 2004 |
| Euromould Limited | Manufacturing | 2000 |
| Europa Productions Ltd | Information & communication | 2008 |
| Europe Hotel Partners Ltd | Extraterritorial | 2019 |
| European Raid Arrays Limited | Information & communication | 1998 |
| Evans and Sons Property Limited | Real estate | 2021 |
| EVH Resources Limited | Construction | 2014 |
| EVO Cards Ltd | Wholesale & retail | 2021 |
| Evolution Heating Cooling & Maintenance Ltd | Construction | 2023 |
| Excel Motor Services Chesham Ltd | Wholesale & retail | 2023 |
| Excel Pro Tennis Limited | Arts & recreation | 2013 |
| Execsponsor.Com Ltd | Information & communication | 2026 |
| Exigy Limited | Administrative & support | 2003 |
| Exit Keys Limited | Real estate | 2020 |
| Express Salons Limited | Wholesale & retail | 2010 |
| Expressions Engravers Limited | Wholesale & retail | 2008 |
| Extractor FAN World Ltd | Wholesale & retail | 2011 |
| Extreme Energy Limited | Arts & recreation | 2009 |
| Extreme Production Group Limited | Administrative & support | 2017 |
| EYE Arte Ltd | Extraterritorial | 2020 |
| F L P Consultants Limited | Agriculture & fishing | 1997 |
| F M Television Limited | Information & communication | 1981 |
| F&L Gardens Ltd | Administrative & support | 2025 |
| F&M Infinity Accounting Services Limited | Professional & scientific | 2020 |
| F.E.Cardozo Limited | Other services | 1964 |
| Fabbricka Ltd | Construction | 2020 |
| Faeger Limited | Arts & recreation | 2021 |
| Failu Ltd | Arts & recreation | 2012 |
| Fairfield Care (West Dorset) Limited | Health & social care | 2011 |
| Fairhope Court RTM Company Ltd | Households | 2017 |
| Faithsmakes Ltd | Wholesale & retail | 2024 |
| Falcon Industrial Services Limited | Financial services | 1996 |
| Faltech Limited | Information & communication | 2009 |