| E-Tag Ltd | Professional & scientific | 2024 |
| E.A. Dowding & Co | | 1996 |
| E.C. Construction Services Limited | Construction | 2007 |
| E.F. Griffin Limited | | 1965 |
| E.F.M.C. Limited | Construction | 2002 |
| E.J.Day(Penshurst)Limited | Agriculture & fishing | 1960 |
| E.Kuqo Painting & Decorations Ltd | Construction | 2023 |
| E.R.Hickmott & SON | Other services | 1959 |
| E.S.Shaw & Sons Limited | Wholesale & retail | 1955 |
| Eagle Vision Business Solutions Limited | Professional & scientific | 2006 |
| Eaglecliff Limited | Administrative & support | 1985 |
| Eanswythe House Residents Limited | Real estate | 1981 |
| Earls Avenue Management Company Limited | Households | 1997 |
| Earlsfield Limited | Agriculture & fishing | 2003 |
| Earnest Consulting Limited | Information & communication | 2007 |
| Easifit Flooring Limited | Wholesale & retail | 2003 |
| East Kent Components (Dover) Limited | Wholesale & retail | 1977 |
| East Kent Iron Works Limited | | 1981 |
| East Kent Physiotherapy Ltd | Health & social care | 2004 |
| East Kent Wills Limited | Professional & scientific | 2004 |
| East Kent Wills Storage Limited | Transport & logistics | 2004 |
| East of India Trading Co Ltd | Wholesale & retail | 2026 |
| East Sussex Carpentry Ltd | Manufacturing | 2026 |
| Eastcote Limited | Health & social care | 2022 |
| Eastern Construction Limited | Wholesale & retail | 1985 |
| Eastern Link Ltd. | Wholesale & retail | 2005 |
| Easton Windows | | 1987 |
| Eastwell Limited | Real estate | 2007 |
| Easy Hair Centre Kerkrade Limited | Other services | 2005 |
| Easychoice Finance Limited | Financial services | 2009 |
| Easycook Foods Limited | | 1991 |
| Easylog Limited | Information & communication | 2003 |
| EAV Networks Limited | Information & communication | 2023 |
| Ebbsfleet Glass Limited | Administrative & support | 2007 |
| Ebdon Consulting Limited | Professional & scientific | 2005 |
| Ebosede Trading and Ibhade Ltd | Health & social care | 2010 |
| ECA Secretaries Limited | Extraterritorial | 2003 |
| Eco Climate Control Limited | Energy | 2007 |
| Ecom & Copy Ltd | Information & communication | 2020 |
| Economize Accounting & Tax Solutions Ltd | Professional & scientific | 2010 |
| ED Smith Haulage Ltd | Transport & logistics | 2023 |
| Edcrystal Global Services Limited | Construction | 2014 |
| Eden Estates (UK) Limited | Construction | 2002 |
| Eden Place Holdings Limited | Wholesale & retail | 1995 |
| Eden Transformer OIL Limited | Administrative & support | 2004 |
| Edenbridge Spice Limited | Hospitality | 2021 |
| Edenbrooks Ventures Ltd | Information & communication | 2022 |
| EDS Utilities Ltd | Construction | 2025 |
| Edward LEY & Son(Builders)Limited | | 1966 |
| Edward Street Limited | Households | 2000 |
| Edzit Care Ltd | Health & social care | 2023 |
| Eematech Company Limited | Wholesale & retail | 2006 |
| EGO Health Limited | Health & social care | 2022 |
| Eharas Ltd | Wholesale & retail | 2023 |
| EI Live! Europe Ltd | Information & communication | 2022 |
| Eightgate Limited | | 1985 |
| EJ Tooke Limited | Other services | 2019 |
| EK Drawing Service Limited | Professional & scientific | 2003 |
| El'Rog Ltd | Health & social care | 2021 |
| Elecdata Limited | Construction | 2003 |
| Electra Chemicals Limited | Extraterritorial | 1997 |
| Electra Holdings Limited | Financial services | 1997 |
| Electra Polymers & Chemicals Limited | Extraterritorial | 1984 |
| Electra Polymers Limited | Manufacturing | 1997 |
| Electric Dreams Limited | Extraterritorial | 2006 |
| Electrical and Security Services Limited | Other services | 1990 |
| Electrical Initiative Limited | Construction | 2009 |
| Electrification Training and Fabrication Ltd | Administrative & support | 1996 |
| Electroil Combustion Spares Limited | Wholesale & retail | 2000 |
| Electrotec Repair Centre Limited | Manufacturing | 1997 |
| Elegance Furnishing Limited | Transport & logistics | 1990 |
| Elegante Cosmetics Ltd | Wholesale & retail | 2011 |
| Elen (Southern) Limited | Professional & scientific | 2005 |
| ELI HPC Ltd | Administrative & support | 2018 |
| Elite Fitness Studio Ltd | Arts & recreation | 2020 |
| Elite Heating Services (U.K.) Limited | Manufacturing | 2005 |
| Elite Ice Limited | Manufacturing | 2019 |
| Elite Leads Direct Limited | Professional & scientific | 2004 |
| Elite Site Engineering Limited | Construction | 2006 |
| Elite Sports Brands Limited | Manufacturing | 2023 |
| Elite Wash Centre Ltd | Administrative & support | 2014 |
| Elizabeth Coles Limited | Professional & scientific | 1999 |
| Ellan Gray Contractors Limited | Construction | 1997 |
| Ellanday Limited | Extraterritorial | 2003 |
| Elle BEE PR Ltd | Professional & scientific | 2026 |
| Elledee Properties Limited | Real estate | 2005 |
| Ellen Wright Recruitment Limited | Professional & scientific | 1988 |
| ELM Digital Ltd | Professional & scientific | 2019 |
| ELM Surfacing Ltd | Construction | 2000 |
| ELM Utilities Limited | Construction | 2005 |
| Elmfield Farm Cottages Ltd | Real estate | 2024 |
| Elmstead Contractors Limited | Wholesale & retail | 1984 |
| Eloges Social Work Ltd | Health & social care | 2016 |
| Elpie Ltd | Other services | 2025 |
| Elsamag Limited | Real estate | 2005 |
| Eltham Digital Printers Limited | Manufacturing | 2007 |
| EM Holdings (Kent) Ltd | Financial services | 2024 |
| Emaco Investment Ltd | Construction | 2022 |
| Embassy Management and Lettings (Folkestone) Ltd | Real estate | 2024 |
| Embassy Management Limited | Real estate | 2018 |