| Essex Sea Food Limited | Hospitality | 2018 |
| Essex Security Group Ltd | Administrative & support | 2024 |
| Essex Tekno Ltd | Information & communication | 2019 |
| Essex Transport Solutions Ltd | Wholesale & retail | 2023 |
| Essex Vehicle Maintenance Limited | Wholesale & retail | 2015 |
| Essex Vehicle Repairs Ltd | Wholesale & retail | 2024 |
| Essex Waste and Demolition Solutions Limited | Construction | 2023 |
| Essex Waste MAN Limited | Water & waste | 2022 |
| Essex Waste Management Ltd | Water & waste | 2025 |
| Essexpropertyinvesmment Ltd | Real estate | 2025 |
| Estag JK Limited | Construction | 2015 |
| Estari Healthcare Limited | Health & social care | 2014 |
| Esther Grace Investments UK Ltd | Real estate | 2018 |
| ET Flooring Limited | Construction | 2017 |
| Ethereal Essence Ltd | Other services | 2025 |
| Ethicpath Ltd | Information & communication | 2026 |
| Etihad Enterprises UK Ltd | Administrative & support | 2016 |
| Etihad Foods(Grays) Ltd | Wholesale & retail | 2026 |
| Etoile Partners Ltd | Other services | 2010 |
| Euroaccessfloors Ltd | Construction | 2016 |
| Eurobar Limited | Construction | 1994 |
| Europa Food & Wine Ltd | Wholesale & retail | 2013 |
| Europe Express Mini Ltd | Wholesale & retail | 2014 |
| Europence Home Developments Ltd. | Construction | 2019 |
| Eurosmart Kitchens Limited | Construction | 2001 |
| EUROTRADE1 Ltd | Wholesale & retail | 2013 |
| Eutek Trading Co Ltd | Other services | 2009 |
| Euteo Ltd | Transport & logistics | 2022 |
| Euuk Properties Limited | Real estate | 2021 |
| EV Service Transport Limited | Transport & logistics | 2026 |
| Evargo Limited | Wholesale & retail | 2023 |
| EVE Electrical Services Limited | Construction | 2016 |
| Eventilation Ltd | Construction | 2023 |
| Ever Green Garden Harvest Ltd | Wholesale & retail | 2020 |
| Everdevs.Net Limited | Information & communication | 2014 |
| Evermore Property Management Ltd | Real estate | 2019 |
| Everon FM Limited | Administrative & support | 2025 |
| Evertrust Estate Ltd | Real estate | 2026 |
| Every 28 Seconds Ltd | Administrative & support | 2018 |
| Every Homeware Ltd | Wholesale & retail | 2024 |
| Everyday IT Consultancy Limited | Information & communication | 2019 |
| Everyone Everywhere Care Services Limited | Health & social care | 2018 |
| Everything Anything Online Ltd | Wholesale & retail | 2020 |
| Everything Kold Limited | Energy | 2022 |
| Everything People Limited | Administrative & support | 2023 |
| Evident BD Ltd | Information & communication | 2020 |
| Evolunent Limited | Health & social care | 2016 |
| Evolution Connection Limited | Transport & logistics | 2011 |
| Evolve and Inspire C.I.C. | Information & communication | 2020 |
| Evolved Multimedia Limited | Information & communication | 2024 |
| Evolving Community Limited | Education | 2022 |
| EW Aesthetics Limited | Health & social care | 2014 |
| Ewelina Transport Ltd | Transport & logistics | 2018 |
| EWM Solutions Ltd | Water & waste | 2024 |
| Ewood Build Ltd | Manufacturing | 2020 |
| Excel Integrated Services Ltd | Information & communication | 2019 |
| Excel Link Limited | Construction | 2023 |
| Excel Property Investments Ltd | Real estate | 2016 |
| EXCEL247 Ltd | Health & social care | 2025 |
| Excellent Care Support Services Ltd | Administrative & support | 2023 |
| Excellent Global Solutions Ltd | Professional & scientific | 2017 |
| Exclusion Zone Limited | Other services | 2014 |
| Exduco Limited | Professional & scientific | 2013 |
| Exmouth Catering Ltd | Hospitality | 2021 |
| Experienced Construction Limited | Construction | 2016 |
| Expert Fit Limited | Wholesale & retail | 2024 |
| Expert Haulage Ltd | Transport & logistics | 2020 |
| Explore Academy Ltd | Education | 2025 |
| Explore Learning Grays Limited | Education | 2016 |
| Exponential-E.Com Limited | Information & communication | 2000 |
| Express Clearance Ltd | Water & waste | 2017 |
| Express Logistic Solutions Ltd | Transport & logistics | 2017 |
| Express MA Ltd | Transport & logistics | 2021 |
| Extsea Limited | Information & communication | 2020 |
| EYE Safe Ltd | Information & communication | 2016 |
| EZ Repairs and Painting Ltd | Construction | 2019 |
| EZI Medical Services Ltd | Health & social care | 2021 |
| Ezibie Limited | Wholesale & retail | 2023 |
| Ezmi Company Limited | Health & social care | 2023 |
| F & M Services and Repairs Limited | Manufacturing | 2017 |
| F Brown Electrical Limited | Construction | 1997 |
| F C Caravans Ltd | Wholesale & retail | 2025 |
| F M Payne Limited | Real estate | 2025 |
| F Plastering Ltd | Construction | 2023 |
| F R Installations Ltd | Construction | 2024 |
| F&A Ground Forces Construction Ltd | Construction | 2020 |
| F&C Ltd | Construction | 2020 |
| F&M Logistic Ltd | Transport & logistics | 2020 |
| F&N Cleaning Solutions Ltd | Administrative & support | 2024 |
| F&S Couriers Ltd | Transport & logistics | 2023 |
| F-Ray Logistics Services Limited | Health & social care | 2016 |
| F.G.Lang(Grays)Limited | Wholesale & retail | 1964 |
| F.W.& M.F.Mansfield Property Investments Limited | Real estate | 1964 |
| FAB UK Maintenance Ltd | Construction | 2023 |
| FAB Ventilation Ltd | Construction | 2023 |
| Fabbia C Ltd | Construction | 2022 |
| Fabcribs Limited | Hospitality | 2022 |
| Fabio.Kitchen Limited | Hospitality | 2024 |
| Fabyserv Limited | Transport & logistics | 2026 |
| Faceaux Ltd | Wholesale & retail | 2021 |