| Embrace Design Limited | Professional & scientific | 1999 |
| Emerald Elevators Limited | Administrative & support | 2007 |
| Emerald London Limited | Construction | 1998 |
| Emia Dental Ltd | Health & social care | 2013 |
| Emiru Properties Ltd | Real estate | 2019 |
| Emmanuel Jones Station Limited | Wholesale & retail | 2005 |
| Empowering Tomorrow's People Ltd | Education | 2021 |
| END Times Construction Ltd | Construction | 2003 |
| Endofbar LLP | | 2023 |
| Endurance Carpets Limited | Wholesale & retail | 1992 |
| Enduroshield UK Ltd | Wholesale & retail | 2018 |
| Energywise Consultants Limited | Professional & scientific | 2004 |
| Engage Events Ltd | Administrative & support | 2025 |
| Enligten Ltd | Information & communication | 2020 |
| Enri Holding Limited | Professional & scientific | 2004 |
| Enveral Limited | Professional & scientific | 1998 |
| Enviro Safe Electronics Limited | | 1991 |
| Envirotemp Services Ltd | Energy | 2025 |
| Eoduk Limited | Professional & scientific | 2002 |
| EPB Preservation Limited | Transport & logistics | 1998 |
| Ephraim Business Services Limited | Professional & scientific | 2004 |
| Ephraim Rehoboth Automobiles Limited | Transport & logistics | 2000 |
| Ephraman Accountancy Services Ltd | Professional & scientific | 2006 |
| Epic Capital UK Limited | Real estate | 2018 |
| EPWORTH123 Ltd | Health & social care | 2022 |
| Equestrian Paddock Maintenance Ltd | Construction | 2024 |
| Equestrian Socials Ltd | Professional & scientific | 2025 |
| Erika Dannmayr Limited | Health & social care | 2003 |
| Erith Concrete Limited | Manufacturing | 2000 |
| Erith Playhouse Limited | Arts & recreation | 1974 |
| Ernest James Limited | Real estate | 1989 |
| Erzanmyne Freight Limited | Transport & logistics | 2004 |
| ES Solutions London Ltd | Water & waste | 2014 |
| Esferico Limited | Information & communication | 2005 |
| Esquire Developments Holdings Ltd | Financial services | 2025 |
| Essex Stone Ltd | Construction | 2003 |
| Essma Care Limited | Health & social care | 2019 |
| Estabond Limited | Real estate | 1978 |
| Esteem Therapies Limited | Health & social care | 2017 |
| Estuary English Limited | Manufacturing | 2004 |
| ET Property Group Ltd | Real estate | 2025 |
| Eternal Excellency Limited | Professional & scientific | 2002 |
| ETT Projects Limited | Construction | 2004 |
| Euphrates Properties Limited | Real estate | 2021 |
| Euro-International (UK) Limited | Transport & logistics | 1999 |
| Euro-Study Limited | Hospitality | 1999 |
| Euroabs Limited | Information & communication | 2003 |
| Eurodis Consultants Limited | Professional & scientific | 1997 |
| Euromeats Limited | Professional & scientific | 1963 |
| Europe-Link Limited | Administrative & support | 2001 |
| European Transmodal Train and Ferry Link Ukeig | | 2002 |
| Eurorisc Limited | Information & communication | 2005 |
| Eurotunnel Agent Services Limited | Professional & scientific | 2004 |
| Eurotunnel Developments Limited | Construction | 1987 |
| Eurotunnel Finance Limited | Professional & scientific | 1986 |
| Eurotunnel Financial Services Limited | Financial services | 1994 |
| Eurotunnel Trustees Limited | Professional & scientific | 1998 |
| Eurythion Limited | Information & communication | 2008 |
| Euston Office Supplies Co.Limited | | 1967 |
| Evark Limited | | 1979 |
| EVE Wise Property Maintenance Ltd | Construction | 2022 |
| Evengain Investments Ltd | Administrative & support | 2007 |
| Event Structures Ltd | Administrative & support | 2013 |
| Ever Shield Limited | Manufacturing | 2003 |
| Evergreen Healthcare 2004 Limited | Health & social care | 2004 |
| Evergreen Property Management Limited | Households | 1982 |
| Evergreen T S Ltd | Agriculture & fishing | 2008 |
| Eveva Limited | Health & social care | 2016 |
| Evi&Elis Carpentry Limited | Construction | 2019 |
| EVO FM Limited | Professional & scientific | 2007 |
| EVO Plumbing & Heating Ltd | Other services | 2020 |
| Evolve and Grow Limited | Professional & scientific | 2010 |
| Evolve Property Developments Limited | Real estate | 2007 |
| Ewan Consulting Limited | Information & communication | 2007 |
| Exceed Electrical Services Limited | Construction | 2007 |
| Excel Academy Language Programmes Limited | Education | 1994 |
| Excel Business Solutions Limited | Construction | 1992 |
| Exclusive Express Logistics Ltd | Transport & logistics | 2022 |
| Exclusive Maintenance Limited | | 1986 |
| Exclusively KOI Ltd | Other services | 2017 |
| Executive-E Limited | Information & communication | 2002 |
| Exemplary Education Services Ltd | Education | 2025 |
| Exhibition & Event Flooring Specialist Ltd | Professional & scientific | 2024 |
| Exicomms Limited | Information & communication | 2016 |
| Exor U.K. Ltd | Real estate | 2016 |
| Expats International Limited | | 1979 |
| Express Forwarders Limited | Transport & logistics | 1969 |
| Express Travel Services Ltd | Transport & logistics | 1997 |
| Expression Computer Services Limited | Construction | 1995 |
| Extratex Limited | Information & communication | 2001 |
| Eyebolt Testing Services (2007) Limited | Administrative & support | 2007 |
| Eyeworld Limited | Health & social care | 2003 |
| Eynsford Holdings Limited | Real estate | 1986 |
| Eythorne Court Barn Management Company Limited | Households | 1992 |
| Ezgi Foods Ltd | Hospitality | 2021 |
| F&P Car Sales Ltd | Wholesale & retail | 2011 |
| F.D.R.Builders Limited | | 1972 |
| F.D.Voyce & Son,Limited | Real estate | 1948 |
| F.I.F. Properties Limited | Real estate | 2007 |
| F.I.R. (FS) Limited | Administrative & support | 1987 |