| Eagles Gate Ltd | Information & communication | 2022 |
| Eagles Security Services Limited | Administrative & support | 2007 |
| Eaglesons Scaffolding Ltd | Construction | 2020 |
| Eaglesport Courier Limited | Wholesale & retail | 2016 |
| Eagon Limited | Health & social care | 2023 |
| Ealing Gate Management Company Limited | Households | 2004 |
| Earn and Learn Trading Ltd | Financial services | 2025 |
| Earth Works Interiors Limited | Construction | 2016 |
| East Anglia Support Services Limited | Other services | 2024 |
| East Anglian Plumbing Ltd | Construction | 2026 |
| East London Landscapes Ltd | Administrative & support | 2014 |
| EAST241 Ltd | Other services | 2025 |
| Eastern Hardwoods Limited | Agriculture & fishing | 1989 |
| Easton Estate Management Limited | Real estate | 2017 |
| Easton Sheetmetal Limited | Manufacturing | 1977 |
| Eastside Academy (Management Company) Limited | Households | 1997 |
| Eastside Recycling Ltd | Wholesale & retail | 2025 |
| Easy Supply Ltd | Wholesale & retail | 2025 |
| Easy Tops Ltd | Wholesale & retail | 2022 |
| EASY2GO Logistics UK Limited | Transport & logistics | 2017 |
| EAT2HEAL Properties Ltd | Real estate | 2024 |
| Eatery Collection Limited | Hospitality | 2024 |
| Eaton Mews (Freehold) Limited | Real estate | 2005 |
| Eaton Park Management Company Limited | Households | 2005 |
| Eben Involvement Limited | Administrative & support | 2026 |
| Ebieme and Co. Ltd | Health & social care | 2026 |
| Ebiniwa Connections CIC | Information & communication | 2024 |
| Ebley Wharf Management Company (NO. 2) Limited | Households | 2005 |
| Ebley Wharf Management Company (Number 1) Limited | Households | 2004 |
| Ebunolacafe Catering Service Ltd | Hospitality | 2018 |
| EC Land Developers Ltd | Administrative & support | 2025 |
| ECA Logistics Ltd | Transport & logistics | 2025 |
| Ecatto Limited | Professional & scientific | 1970 |
| Ecco Ltd | Extraterritorial | 2008 |
| Ecficax Holdings Limited | Information & communication | 2015 |
| ECI Water and Geo-Environmental Services Ltd | Construction | 2018 |
| Eclipse Creative & Web Design Limited | Professional & scientific | 2025 |
| Eco Efficient Home Solutions Ltd | Construction | 2020 |
| Eco Electrical Contractors (U.K.) Ltd | Construction | 2021 |
| Eco Energy Consulting Ltd | Wholesale & retail | 2017 |
| Ecobuild Property Services Ltd | Construction | 2014 |
| Ecoklean UK Limited | Administrative & support | 2003 |
| Ecology Resources Ltd | Professional & scientific | 2016 |
| Ecostone Limited | Manufacturing | 2022 |
| Ecostroybuilders Limited | Construction | 2021 |
| ECOURSES4YOU Limited | Education | 2015 |
| Ecruiter Ltd | Other services | 2023 |
| ECS Pupil Attendance Consultancy Services Ltd | Education | 2018 |
| Ecstasy of Gold Limited | Information & communication | 2016 |
| ED GAS & Heating Ltd | Construction | 2026 |
| Edafeme Limited | Health & social care | 2023 |
| Eddie's Interior Ltd | Construction | 2014 |
| Eddy's Wheel Repair Ltd | Wholesale & retail | 2019 |
| EDE Care Ltd | Health & social care | 2019 |
| Eden Gardens SE Ltd | Administrative & support | 2020 |
| Eden Glass Ltd | Construction | 2025 |
| Eden Health Ltd | Hospitality | 2018 |
| Edenite Limited | Hospitality | 2021 |
| Edge Concept International Ltd | Information & communication | 2023 |
| Edgehill House Management Company Limited | Households | 2002 |
| Ediblesbyshally Limited | Wholesale & retail | 2025 |
| Edmers Services Ltd | Health & social care | 2023 |
| Eduard VC Limited | Construction | 2020 |
| Edusky Limited | Health & social care | 2022 |
| Eduvalentine Concept Limited | Wholesale & retail | 2020 |
| Edward Margaret & MAY Limited | Real estate | 2024 |
| Edward Quarter Management Company Limited | Households | 1997 |
| Edwards & Rafferty Estates Limited | Real estate | 2023 |
| Edwards Leisure Limited | Other services | 2017 |
| EDY Electrical Ltd | Manufacturing | 2016 |
| Edycriss Ltd | Construction | 2026 |
| EE Medicare Company Ltd | Health & social care | 2022 |
| Eeke's Ltd | Health & social care | 2025 |
| EFA Consultancy Limited | Other services | 2019 |
| Efcis Limited | Financial services | 1998 |
| Efcis Tradepay Limited | Financial services | 2013 |
| EFE Favy Company Limited | Health & social care | 2026 |
| Effetha Medicare & Consults Ltd | Health & social care | 2025 |
| Efua SEY Cultural Academy Limited | Education | 2005 |
| EG Foods Harlow Ltd | Hospitality | 2025 |
| EGB Wholesale Limited | Wholesale & retail | 2013 |
| EGP Logistics Ltd | Transport & logistics | 2017 |
| EGY Trade Ltd | Hospitality | 2024 |
| Egypol Ltd | Wholesale & retail | 2024 |
| Ehaan’S Ventures Ltd | Wholesale & retail | 2024 |
| EHI Health International Ltd | Health & social care | 2023 |
| EI Contractors Ltd | Professional & scientific | 2022 |
| Eida Renovates Ltd | Other services | 2025 |
| Eight Swan Close Ltd | Real estate | 2024 |
| EIM Consulting Ltd | Administrative & support | 2022 |
| EIR Business Solutions Ltd | Professional & scientific | 2025 |
| EJ Darlington Holdings Limited | Real estate | 2002 |
| EJC Consultancy Services Limited | Professional & scientific | 2024 |
| EJC Photography Ltd | Professional & scientific | 2022 |
| EJE Meds Limited | Health & social care | 2024 |
| EKJ Services Ltd | Public administration | 2013 |
| EKN Marketing Ltd | Professional & scientific | 2023 |
| EKO Global African Foods Limited | Wholesale & retail | 2026 |
| EL Air Limited | Professional & scientific | 2016 |
| El-Muzo Healthcare Ltd | Health & social care | 2024 |