| Elfcapi Ltd | Professional & scientific | 2015 |
| ELH Training Limited | Education | 2024 |
| Elite Cars Leigh on Sea Limited | Wholesale & retail | 2008 |
| Elite Cars of Leigh Limited | Wholesale & retail | 2001 |
| Elite Electrical Engineering Contractors Limited | Construction | 2020 |
| Elliot J Jenkins Associates Limited | Professional & scientific | 2014 |
| Elms Capital Investments Limited | Real estate | 2021 |
| Elms Pharmacy Limited | Wholesale & retail | 2004 |
| ELSAWYGASTRO360 Ltd | Health & social care | 2023 |
| Emmi Mcgill Consultancy Ltd | Information & communication | 2024 |
| Emrock Properties Ltd | Real estate | 2017 |
| Endcomms Ltd | Professional & scientific | 2017 |
| Endorsation Ltd | Wholesale & retail | 2026 |
| Engineering Services and Supplies Ltd | Construction | 2003 |
| Enlightened FX Ltd | Professional & scientific | 2014 |
| EOS Precious Metals Limited | Professional & scientific | 2016 |
| EP Heritage Ltd | Manufacturing | 2023 |
| Epic Scale Productions Ltd | Arts & recreation | 2024 |
| ERP Nordisk Limited | Extraterritorial | 1999 |
| ESF Properties Limited | Real estate | 2003 |
| Esperance Helpng Hand Limited | Wholesale & retail | 2006 |
| Espiene Ltd | Financial services | 2003 |
| Esprit Management Company Limited | Real estate | 1999 |
| ESS Coatings Ltd | Construction | 2025 |
| Essbro Company,Limited(The) | Manufacturing | 1939 |
| Essential Aids (Essentialaids.Com) Limited | Wholesale & retail | 2004 |
| Essex Chambers of Commerce & Industry Limited | Other services | 1994 |
| Essex Cultural Diversity Project Ltd | Professional & scientific | 2011 |
| Essex Emergency Ambulance Hire Limited | Other services | 2012 |
| Essex Emergency Limited | Extraterritorial | 2019 |
| Essex Emergency Services Limited | Wholesale & retail | 2013 |
| Essex Fixings and Abrasives Supplies Limited | Wholesale & retail | 1974 |
| Essex GAS and Plumbing Limited | Construction | 2024 |
| Essex Group Holdings International Limited | Construction | 2016 |
| Essex Hearing Aids Limited | Wholesale & retail | 1998 |
| Essex Marina Limited | Wholesale & retail | 2022 |
| Essex MEP Services Limited | Construction | 2026 |
| Essex Mobile Homes Limited | Transport & logistics | 2021 |
| Essex PIE MAN Limited | Wholesale & retail | 2012 |
| Essex Sealed Units Limited | Construction | 2025 |
| Essex Spray Shop Ltd | Other services | 2020 |
| Essex Spraying Limited | Other services | 2024 |
| Essex Vehicle Hire Ltd | Administrative & support | 2024 |
| Estuary Electrical Contractors Limited | Administrative & support | 2006 |
| Eunoia Solutions Limited | Information & communication | 2009 |
| Euroconsult Limited | Extraterritorial | 1953 |
| Euroforce UKI Ltd | Information & communication | 2024 |
| European Energy Construction Limited | Construction | 2014 |
| European Energy UK EPC Limited | Construction | 2025 |
| European Energy UK Holdco One Ltd | Financial services | 2022 |
| European Energy UK Yield Group Ltd | Financial services | 2022 |
| European Energy UK Yieldco One Ltd | Financial services | 2022 |
| Evans Decorating Ltd | Construction | 2024 |
| Event Fusion Limited | Arts & recreation | 2000 |
| Exclusive Contracts (UK) Ltd | Administrative & support | 2013 |
| Exclusive Driveways Ltd | Other services | 2021 |
| Executive Paving Limited | Construction | 2013 |
| Expandev Ltd | Information & communication | 2025 |
| Explorer Insurance Services Limited | Financial services | 2011 |
| Exquisite Healthcare Ltd | Financial services | 2014 |
| EYE SPY Digital Limited | Professional & scientific | 2009 |
| F & P Holdings Limited | Professional & scientific | 2001 |
| F a M Productions Limited | Other services | 2010 |
| F&E Limited | Construction | 2020 |
| F&G IT Ltd | Information & communication | 2014 |
| F&L Catering Ltd | Hospitality | 2022 |
| F&M Compliance Limited | Professional & scientific | 2021 |
| Fabricating Fiction Limited | Arts & recreation | 2018 |
| Facilities Networking Limited | Administrative & support | 2006 |
| Fairy Gardenmothers Ltd | Administrative & support | 2022 |
| Falco (Hall Lane Shenfield) Ltd | Administrative & support | 2024 |
| Falco (Rodney & Munton Senior) Limited | Financial services | 2025 |
| Falco (Rodney & Munton) Ltd | Administrative & support | 2023 |
| Falco (Sutton on Sea) Limited | Construction | 2022 |
| Falco (Talbot Towcester) Limited | Administrative & support | 2022 |
| Falco Abbots Langley LP | | 2024 |
| Falco Aesl Limited | Administrative & support | 2021 |
| Falco Agent Limited | Administrative & support | 2019 |
| Falco Alicante CP Ltd | Administrative & support | 2022 |
| Falco Bardney Ltd | Administrative & support | 2021 |
| Falco Battery Projects Limited | Administrative & support | 2021 |
| Falco Bayfield (Comberton) Limited | Administrative & support | 2025 |
| Falco Blount Street Limited | Administrative & support | 2025 |
| Falco Brightlingsea Limited | Administrative & support | 2022 |
| Falco Capital Limited | Financial services | 2017 |
| Falco Capital Partners Limited | Financial services | 2015 |
| Falco CP Limited | Administrative & support | 2018 |
| Falco Director 1 Limited | Administrative & support | 2022 |
| Falco Director 2 Limited | Administrative & support | 2022 |
| Falco Director 3 Limited | Administrative & support | 2023 |
| Falco Fenway Limited | Administrative & support | 2025 |
| Falco Getafe CP Limited | Financial services | 2021 |
| Falco Group Limited | Financial services | 2020 |
| Falco Hayle Ltd | Administrative & support | 2021 |
| Falco HTP3 Limited | Financial services | 2025 |
| Falco Investment Management Limited | Financial services | 2018 |
| Falco Investors Agent Limited | Administrative & support | 2021 |
| Falco Ippolyts Limited | Administrative & support | 2022 |
| Falco Nominees Ltd | Administrative & support | 2025 |
| Falco Pamplona CP Limited | Administrative & support | 2021 |