| Dynamic Business Canvas Ltd | Information & communication | 2020 |
| Dynamic FRA Limited | Construction | 2022 |
| Dynamic Performance Limited | Wholesale & retail | 2026 |
| Dynasty Payroll Solutions Ltd | Professional & scientific | 2022 |
| Dyno Cleaning Services Limited | Administrative & support | 2023 |
| E a V Co-Ordinated Limited | Other services | 1994 |
| E and J Fencing Ltd | Other services | 2012 |
| E Care Wickford Limited | Health & social care | 2020 |
| E D Equestrian Limited | Wholesale & retail | 2020 |
| E N Developer Ltd | Construction | 2021 |
| E&R Auto Garage and Tyres Ltd | Wholesale & retail | 2025 |
| E-Construction Services Ltd | Construction | 2017 |
| E-Motiv Design Ltd | Professional & scientific | 2019 |
| E.M.E. Essex Limited | Other services | 1997 |
| E.M.R. Search & Selection Limited | Administrative & support | 1992 |
| E.P.D. Mechanical Services Limited | Construction | 2006 |
| Eaglestone Petroleum Limited | Extraterritorial | 1981 |
| Eagleview Developments Limited | Construction | 2021 |
| Eagleview Estate Agents Ltd | Real estate | 2025 |
| Earnshaw HR Consulting Ltd | Administrative & support | 2026 |
| Earth Sparks Energy Ltd | Public administration | 2025 |
| Earth Sparks Ltd | Manufacturing | 2022 |
| Earth Sparks Plumbing Ltd | Construction | 2025 |
| East Anglia Medical Service Limited | Other services | 2011 |
| East Anglia PUB Co. Limited | Hospitality | 2007 |
| East Beach Shoeburyness Ltd | Hospitality | 2023 |
| East Street Mini Valet Ltd | Wholesale & retail | 2023 |
| Eastern Esplanade Catering Limited | Hospitality | 2025 |
| Eastern Garage Car Sales Limited | Wholesale & retail | 2014 |
| Eastern Transport Holdings Limited | Financial services | 2016 |
| Eastwood Approved Cars Limited | Extraterritorial | 2021 |
| Eastwood Catering Ltd | Hospitality | 2024 |
| Eastwood Community Endoscopy Centre Ltd. | Health & social care | 2012 |
| Eastwood Flooring Supplies Limited | Wholesale & retail | 2011 |
| Eastwood Motor Sales Limited | Wholesale & retail | 2024 |
| Eastwood Podiatry and Chiropody Ltd | Health & social care | 2025 |
| Eastwood Road Management Co Limited | Real estate | 1987 |
| Eastwood Service Station and MOT Centre Ltd | Wholesale & retail | 2014 |
| Eastwood Travel Ltd | Information & communication | 2025 |
| Easyloftsessex Ltd | Construction | 2019 |
| ECC (LJC) Limited | Health & social care | 2025 |
| Eccentual Psychology and Therapeutic Services Ltd | Education | 2023 |
| Echotech Consultancy Limited | Information & communication | 2013 |
| Eco 1 Logistics Ltd | Transport & logistics | 2021 |
| Eco Finish Ltd | Construction | 2020 |
| Eco Management Limited | Construction | 2003 |
| Eco Rend Essex Ltd | Construction | 2023 |
| Eco Rend UK Services Ltd | Construction | 2023 |
| ED Gardens Ltd | Administrative & support | 2023 |
| EDC Fire Protection Ltd | Construction | 2023 |
| EDC South East Ltd | Financial services | 2024 |
| Eddie and Aster Ltd | Wholesale & retail | 2026 |
| Eddie Randall Mortgages & Protection Limited | Financial services | 2015 |
| Eden Brook Home Care Limited | Health & social care | 2010 |
| Eden Property Group Limited | Real estate | 2022 |
| Eden Short Term Stays Limited | Real estate | 2025 |
| Edge Forex Trading Ltd | Financial services | 2026 |
| Edge Hair & Beauty Ltd | Other services | 2023 |
| Edge Mens Hair and Grooming Ltd | Other services | 2023 |
| Edmunds Design & Construction Ltd | Construction | 2013 |
| Edpsych Insight Ltd | Education | 2023 |
| EDU Strategy Consulting Ltd | Professional & scientific | 2023 |
| Education Hub 4 Children & Parents Ltd | Education | 2024 |
| Edwards Building Co Ltd | Construction | 2022 |
| EF (Power) Limited | Construction | 2016 |
| Effective Consulting Group Ltd | Professional & scientific | 2019 |
| EGE Group Ltd | Construction | 2024 |
| Egec Group Ltd | Construction | 2025 |
| Eggbro's Limited | Hospitality | 2021 |
| Egtr Consulting Ltd | Information & communication | 2014 |
| Eight 9 Health Ltd | Professional & scientific | 2025 |
| EJ & CT Property Ltd | Real estate | 2025 |
| EKK Construction Services Ltd | Construction | 2023 |
| EKL Stairlifts Ltd | Construction | 2015 |
| EL REY Gallo Ltd | Wholesale & retail | 2021 |
| EL3VATE Ltd | Education | 2024 |
| Eldin Ltd | Wholesale & retail | 2025 |
| Electology Ltd | Construction | 2023 |
| Electric Triangle Company Limited | Professional & scientific | 2014 |
| Electric Vehicle Charging Services Ltd | Wholesale & retail | 2020 |
| Electrical & Audio Visual Services Ltd | Construction | 2015 |
| Electrical Masters Limited | Construction | 2015 |
| Electrum South East Limited | Professional & scientific | 2022 |
| Elementary Logistics Ltd | Transport & logistics | 2025 |
| Eley Family Holdings Ltd | Financial services | 2025 |
| Elfcraft MEC Limited | Manufacturing | 2016 |
| Elio Capelli Limited | Other services | 2023 |
| Elisa Property Developer Ltd | Construction | 2024 |
| Elite Bootcamp Transformations Limited | Arts & recreation | 2019 |
| Elite Hygienic Solutions Ltd | Administrative & support | 2025 |
| Elite Landscaping Services Limited | Administrative & support | 2018 |
| Elite Peri Peri Eastwood Ltd | Hospitality | 2022 |
| Eliteverse Ltd | Information & communication | 2023 |
| Ellis Knight Bespoke Recruitment Limited | Administrative & support | 2015 |
| Ellis Property Developments Limited | Other services | 1997 |
| ELM Park Properties Ltd | Real estate | 1997 |
| ELM Village Block D Flat Management Limited | Administrative & support | 1986 |
| ELM Village Block D RTM Company Limited | Households | 2024 |
| Elmdale Welding and Engineering Supplies Limited | Wholesale & retail | 1986 |
| Elmes Electrical Services Limited | Construction | 2022 |