| Elroi Health Ltd | Public administration | 2026 |
| Emergency Locksmith Pros Ltd | Administrative & support | 2025 |
| Emerio Logistics Ltd | Transport & logistics | 2012 |
| Emma Fowler Hair and Education Ltd | Education | 2019 |
| Emma Smith Aesthetics Ltd | Health & social care | 2022 |
| Empire Holdings Essex Ltd | Extraterritorial | 2025 |
| Emporium Publications (Essex) Limited | Information & communication | 2008 |
| ENERG3 Limited | Professional & scientific | 2016 |
| Enslins Accountants UK Limited | Professional & scientific | 2019 |
| Environmental Asbestos Solutions Limited | Construction | 2007 |
| Envirosigns Limited | Manufacturing | 2009 |
| Envoy Lettings Limited | Households | 2017 |
| Epiphany POD Limited | Health & social care | 2015 |
| Epox Ltd | Construction | 2017 |
| Equine Savvy Ltd | Professional & scientific | 2020 |
| Ernest Stanley Limited | Professional & scientific | 2017 |
| Erus Metals Limited | Transport & logistics | 2010 |
| ESG Group Holdings Limited | Manufacturing | 2014 |
| ESG Group Limited | Manufacturing | 2015 |
| Esmgriffon Ltd | Information & communication | 2019 |
| Esscs Ltd | Administrative & support | 2026 |
| Essex Bodyworks Ltd | Extraterritorial | 2007 |
| Essex Burners Limited | Other services | 2020 |
| Essex Car Store Limited | Wholesale & retail | 2018 |
| Essex Care Association Ltd | Health & social care | 1993 |
| Essex Cat Converters Limited | Manufacturing | 2016 |
| Essex Cleaning Services Limited | Other services | 2015 |
| Essex Flat Roofing Limited | Construction | 2007 |
| Essex Golf Limited | Other services | 2009 |
| Essex Groundwork’S Solutions Ltd | Construction | 2025 |
| Essex Heating Solutions Limited | Construction | 2011 |
| Essex Internet Services Limited | Professional & scientific | 1995 |
| Essex Muscle Therapy Ltd | Construction | 2021 |
| Essex Safety Glass Limited | Extraterritorial | 2016 |
| Essex Smiles Ltd | Health & social care | 2019 |
| Essex Solar Power Ltd | Other services | 2022 |
| Essex Technical Services Limited | Information & communication | 2025 |
| Essex Tennis Courts Limited | Construction | 1999 |
| Essex Vehicle Sourcing Limited | Wholesale & retail | 2019 |
| Estrada-Hart Consulting Ltd | Administrative & support | 2011 |
| ETC Properties (Essex) Limited | Real estate | 2008 |
| Euro-Uk Limited | Other services | 2022 |
| European Office Supplies Group Limited | Financial services | 2017 |
| European Office Supplies Holdings Ltd | Financial services | 2013 |
| European Office Supplies Limited | Administrative & support | 2008 |
| Europress Data Limited | Extraterritorial | 1995 |
| Europress Holdings Limited | Professional & scientific | 1989 |
| Europress Internet Services Limited | Professional & scientific | 1999 |
| Euroview AG Ltd | Manufacturing | 2026 |
| Euroview Architectural Glass Ltd | Extraterritorial | 2026 |
| Eutierria Retreats Ltd | Hospitality | 2026 |
| Evenheights Limited | Transport & logistics | 2004 |
| Events on Wheels Limited | Administrative & support | 2011 |
| Everythin&More Ltd | Wholesale & retail | 2026 |
| Everything Health Group Ltd | Health & social care | 2021 |
| Evoke Security Limited | Professional & scientific | 2012 |
| Evolutionary Film Distribution Limited | Information & communication | 2016 |
| Evolutionary Film Productions Limited | Information & communication | 2016 |
| Evolutionary Films Limited | Information & communication | 2014 |
| Evolutionary Rights Limited | Information & communication | 2024 |
| Evolutionary TV Productions Limited | Information & communication | 2024 |
| Exact Innovations Ltd | Financial services | 2011 |
| Exarchus Limited | Real estate | 2013 |
| Exceed Lives Limited | Health & social care | 2025 |
| Excell's Emporium Ltd | Extraterritorial | 2021 |
| Excellentia Properties Ltd | Real estate | 2024 |
| Exchange Processing Services Ltd | Financial services | 2026 |
| Exclusive Benz Chauffeur and Cabs Services Ltd | Transport & logistics | 2025 |
| Exclusive Holdings Group Limited | Financial services | 2024 |
| Exhibit Excellence Ltd | Construction | 2026 |
| Experience Capital Limited | Financial services | 2017 |
| Experience Engine Limited | Administrative & support | 2001 |
| Experiential Knowledge Ltd | Other services | 2012 |
| Exposure PR and Communications Limited | Professional & scientific | 2025 |
| Exquisite Floors of Essex Limited | Construction | 2023 |
| Extravagance Music Management Limited | Information & communication | 1996 |
| Eyellcart Holdings Ltd | Wholesale & retail | 2025 |
| F & D Lift Interiors Ltd | Construction | 2005 |
| F&Screations Limited | Hospitality | 2014 |
| Facial Aesthetics Limited | Health & social care | 2003 |
| Factory Gym (Essex) Ltd | Arts & recreation | 2010 |
| Faddy Development Limited | Construction | 2016 |
| Faddy Properties Limited | Real estate | 2014 |
| Fair Family Justice Limited | Professional & scientific | 2026 |
| Falkirk Internet Services Limited | Professional & scientific | 1995 |
| Family Basket Ltd | Wholesale & retail | 2026 |
| Farepay Limited | Administrative & support | 2016 |
| Farmcoe Limited | Hospitality | 2012 |
| Farn Forestry Limited | Agriculture & fishing | 2025 |
| Fastune Ltd | Wholesale & retail | 2023 |
| FCJ Recovery Ltd | Transport & logistics | 2026 |
| FDS Electrical Ltd | Construction | 2023 |
| FDS Groundworks Ltd | Construction | 2010 |
| Feel Quirky Ltd | Wholesale & retail | 2023 |
| Femme Prep Limited | Wholesale & retail | 2024 |
| Fenestration Ltd | Construction | 2016 |
| Ferrainvest (UK) Ltd | Wholesale & retail | 2018 |
| FHM Consultancy Ltd | Professional & scientific | 2026 |
| Fields Plumbing and Heating Limited | Administrative & support | 2017 |
| Fieldway 1 Limited | Real estate | 2022 |