| Elite International Design Ltd | Wholesale & retail | 2025 |
| Elite Property Solutions Limited | Information & communication | 2006 |
| Elite Talent Connect Ltd | Administrative & support | 2026 |
| Elite Ultrasound Services Ltd | Health & social care | 2025 |
| Eliteequipt Ltd | Wholesale & retail | 2026 |
| Eljkamal-Uddin Ltd | Health & social care | 2023 |
| Elleff Associates Ltd | Administrative & support | 1999 |
| Ellie Westgarth Ltd | Wholesale & retail | 2026 |
| Ellisam Properties Limited | Real estate | 2016 |
| Ellow Limited | Hospitality | 2017 |
| Ellswood Property Management Limited | Real estate | 2003 |
| ELM Horticulture Limited | Administrative & support | 2004 |
| ELM Publications Limited | | 1962 |
| Elmatrix Limited | Information & communication | 2023 |
| Elmsade Trade Ltd | Wholesale & retail | 2026 |
| Elmvilla Limited | Professional & scientific | 2000 |
| Eloise Dental Therapy Ltd | Health & social care | 2026 |
| ELP Builders Limited | Construction | 2023 |
| Elpoor Ltd | Wholesale & retail | 2026 |
| ELS Edification Plus Ltd | Education | 2019 |
| Elsa Property Development Services Limited | Real estate | 2003 |
| Eltekon Limited | Real estate | 2006 |
| Eltra Limited | Administrative & support | 1998 |
| Eltrade Ltd | Other services | 2007 |
| Eltsac Limited | Professional & scientific | 2003 |
| Elum Psychiatric Evidence Ltd | Health & social care | 2026 |
| Elysian Management Ltd | Information & communication | 2009 |
| Emaan Trading Limited | Wholesale & retail | 2025 |
| EMBALL'ISO-M2 Ltd | Manufacturing | 2004 |
| EMC Tutors Limited | Education | 2007 |
| Emeka Okpara General Practice Ltd | Health & social care | 2023 |
| Emerald Enterprise Ltd | Households | 1998 |
| Emergency 247 Ltd | Construction | 2022 |
| Emiliano Disha Coaching Ltd | Education | 2024 |
| Emkay Claims Consultant Ltd | Administrative & support | 2024 |
| Emma Cahill Limited | Wholesale & retail | 2025 |
| Emovers Digital Ltd | Wholesale & retail | 2024 |
| Empathe Care Ltd | Health & social care | 2026 |
| Empathy Technologies Ltd | Information & communication | 2011 |
| Empire Flippers Limited | Wholesale & retail | 2026 |
| Empire Golf Limited | Other services | 2005 |
| Empire Travel Services Limited | Administrative & support | 1984 |
| Empress Garland Limited | Manufacturing | 2003 |
| En-Form | Information & communication | 1999 |
| En-Tub Limited | Health & social care | 2004 |
| ENA Properties Ltd | Construction | 2024 |
| Enchant Mirabilia Ltd | Wholesale & retail | 2023 |
| Enchanted Events- Weddings Ltd | Hospitality | 2020 |
| Encoma Engineering Limited | Professional & scientific | 2007 |
| Endc Accounting and Consultancy Ltd | Professional & scientific | 2000 |
| Energylines Limited | Arts & recreation | 2003 |
| Enes Installations Limited | Construction | 2018 |
| Enes Kurtay Ltd | Wholesale & retail | 2026 |
| Enges Lead Limited | Information & communication | 2022 |
| Engicon Solutions Ltd | Professional & scientific | 2025 |
| Engine Station Limited | Wholesale & retail | 2026 |
| Engineered Piping Products Limited | Wholesale & retail | 2002 |
| Englheim Pharma Ltd | Manufacturing | 2025 |
| English Language for ALL Ltd | Information & communication | 2023 |
| ENJ Scaffolding Limited | Construction | 2007 |
| Enterprise House Corporate Services Limited | Real estate | 1994 |
| Enterprise Wide Consultancy Limited | Information & communication | 2008 |
| Entourage Innovation Ltd | Professional & scientific | 2013 |
| Entrancing Models Limited | Wholesale & retail | 2023 |
| Entrepreneur Assets Ltd | Construction | 2022 |
| Entwistle & Co Accountants Ltd | Professional & scientific | 2002 |
| Enver Solutions Limited | Information & communication | 2001 |
| Envo Stewards PVT Limited | Water & waste | 2026 |
| EON Clothing Limited | Wholesale & retail | 1997 |
| Epic Electrical Limited | Manufacturing | 2003 |
| Epic Golf Group U.K. Ltd | Wholesale & retail | 2025 |
| Epic Mechanical Services Ltd | Construction | 2024 |
| Epic Properties Limited | Real estate | 2000 |
| Epicurean Enterprises Limited | Hospitality | 2004 |
| Epik Solutions Ltd | Wholesale & retail | 2026 |
| Epologix Ltd Ltd | Wholesale & retail | 2022 |
| Epping Forest Heritage Trust | Education | 1977 |
| EPS Southern Limited | Information & communication | 2000 |
| Epsilon Tauri Limited | Real estate | 2019 |
| Equalfilter Limited | Extraterritorial | 1986 |
| Equilibra Ltd | Professional & scientific | 2020 |
| Equilodge Limited | Households | 1985 |
| Equinox EU Limited | Real estate | 2006 |
| ERE OKO Foods UK Ltd | Wholesale & retail | 2022 |
| Eric Beasley Ltd | Financial services | 2022 |
| Eric W. Hopkins (Jewellers) Limited | | 1975 |
| Erina Spitiaun Limited | Real estate | 2024 |
| Ermah UK Ltd | Wholesale & retail | 2017 |
| Ernest DOE & Sons Limited | Wholesale & retail | 1947 |
| Ernest DOE Industrial Limited | Extraterritorial | 1963 |
| Ervin Construction Ltd | Construction | 2018 |
| Escrow Limited | Information & communication | 2024 |
| Esim Services Ltd | Information & communication | 2023 |
| Esor Property Co.Limited | Real estate | 1956 |
| Esourcify Ltd | Information & communication | 2024 |
| Espervale Limited | Real estate | 2002 |
| Esprit Fitness Limited | Arts & recreation | 2003 |
| Essex & Suffolk Construction Company Limited | Wholesale & retail | 1991 |
| Essex Asset Finance Ltd | Financial services | 2002 |
| Essex Community Care Services Ltd | Health & social care | 2020 |