| Eamtrades Ltd | Financial services | 2025 |
| EAR Health Ltd | Health & social care | 2024 |
| Earlywiseconsulting Ltd | Education | 2025 |
| Earn and Excel Ltd | Education | 2016 |
| Earth Landscapes Limited | Administrative & support | 2015 |
| Earth Line Services Limited | Construction | 2019 |
| Earthwear Ltd | Wholesale & retail | 2025 |
| Easelife UK Ltd | Wholesale & retail | 2017 |
| Easirent Limited | Information & communication | 1998 |
| East Anglia Cars Ltd | Wholesale & retail | 2018 |
| East Lawn Gardens Residents Association Limited | Households | 2000 |
| East Midlands Propco Ltd | Real estate | 2025 |
| East Plastering Limited | Construction | 2026 |
| East West Luton Ltd | Hospitality | 2025 |
| Eastern Closet Ltd | Wholesale & retail | 2017 |
| Eastern Essence Limited | Hospitality | 2024 |
| Eastern Grillz Limited | Hospitality | 2019 |
| Eastern Properties Investments Limited | Real estate | 2025 |
| Eastern Touch Events Ltd | Hospitality | 2016 |
| Eastman Greaves & Co. Ltd. | Professional & scientific | 1992 |
| Eastsis UK Limited | Hospitality | 2023 |
| Easy 2 Lite Limited | Manufacturing | 2025 |
| Easy Claims (Luton) Ltd | Administrative & support | 2019 |
| Easy Coaches Limited | Education | 2025 |
| Easy Flags Ltd | Wholesale & retail | 2023 |
| Easy Freight Solutions Ltd | Transport & logistics | 2019 |
| Easy Parking Luton Ltd | Hospitality | 2025 |
| Easy Plus Ltd | Wholesale & retail | 2026 |
| Easy Private Hire Services Limited | Transport & logistics | 2024 |
| Easy Smash Ltd | Real estate | 2025 |
| Easy to DO Tuition Ltd | Education | 2024 |
| EASYASK24.COM Ltd | Wholesale & retail | 2023 |
| Easycakes Limited | Wholesale & retail | 2025 |
| Easygo Airport Taxi Ltd | Transport & logistics | 2025 |
| Easygo Airport Transfer Ltd | Transport & logistics | 2023 |
| Easygo Recovery&Logistics Ltd | Transport & logistics | 2025 |
| Easyjet Holidays Holdings Limited | Professional & scientific | 2019 |
| Easyjet Holidays Limited | Administrative & support | 2019 |
| Easyjet Holidays Transport Limited | Other services | 2019 |
| Easyjet HQ Development Limited | Construction | 2019 |
| Easyjet HQ Holdings Limited | Financial services | 2019 |
| Easyjet HQ Limited | Construction | 2019 |
| Easyjet PLC | Professional & scientific | 2000 |
| Easyjet UK Limited | Transport & logistics | 2017 |
| Easypump Concrete Ltd | Construction | 2016 |
| Eaton ASH Cost Management Ltd | Other services | 2023 |
| EAZ Career Limited | Administrative & support | 2022 |
| Eazy Drive Ltd | Transport & logistics | 2017 |
| EAZY2BUY Limited | Wholesale & retail | 2018 |
| Eazyoo Ltd | Wholesale & retail | 2025 |
| EB Development Limited | Real estate | 2025 |
| EB Ventures Ltd | Real estate | 2020 |
| Ebanks Fire Protection Ltd | Manufacturing | 2023 |
| EBE Painters Ltd | Construction | 2023 |
| Ebenezer Health Solutions Ltd | Health & social care | 2023 |
| Ebenova UK Limited | Wholesale & retail | 2025 |
| Ebild Limited | Other services | 2000 |
| EBM Connections Limited | Wholesale & retail | 2020 |
| Ebony Bruce Travels Limited | Transport & logistics | 2022 |
| EBR Elite Bilding Renovation Ltd | Construction | 2026 |
| Ebrahim Medical Services Ltd | Real estate | 2019 |
| Ebrella A.I Corps UK Ltd | Information & communication | 2026 |
| EBW Consulting Ltd | Health & social care | 2022 |
| EC Sabur Ltd | Administrative & support | 2023 |
| EC Serv Limited | Other services | 2018 |
| Ecads Properties Ltd | Households | 2020 |
| ECC International Limited | Professional & scientific | 2024 |
| ECC314 Ltd | Professional & scientific | 2009 |
| Echelon Educare Limited | Public administration | 2025 |
| Echelyn Global Ventures Ltd | Manufacturing | 2024 |
| Eckaa Ltd | Information & communication | 2026 |
| Eckl Ltd | Wholesale & retail | 2026 |
| Eclipse Management Consultancy Limited | Information & communication | 2013 |
| Eco British Boiler Ltd | Construction | 2022 |
| Eco Cycle Inc Ltd | Wholesale & retail | 2025 |
| Eco Foot Ltd | Wholesale & retail | 2024 |
| Eco Green Upgrades Ltd | Other services | 2020 |
| Eco Home Efficiency Ltd | Professional & scientific | 2022 |
| Eco Homes and Developments Lettings Ltd | Real estate | 2024 |
| Eco Homes and Developments Ltd | Construction | 2021 |
| Eco Insulation Grants Limited | Construction | 2022 |
| Eco International Trading Ltd | Wholesale & retail | 2025 |
| Eco Plumbing Ltd | Construction | 2025 |
| Eco Plus Improvements Ltd | Construction | 2023 |
| Eco Pressure Pro Limited | Administrative & support | 2022 |
| Eco Property Ltd | Transport & logistics | 2017 |
| Eco Prro Ltd | Other services | 2020 |
| Eco Subs Holdings Limited | Other services | 2023 |
| Eco Transfers Limited | Transport & logistics | 2017 |
| Eco UK Trans Limited | Transport & logistics | 2018 |
| Eco-Cool Solutions Ltd | Construction | 2025 |
| Eco-Houz LLP | | 2023 |
| Ecobuild Contractors Ltd | Construction | 2023 |
| Ecocore Energy Ltd | Construction | 2024 |
| Ecocycle Group Ltd | Water & waste | 2024 |
| Ecodav Cleaning Services Ltd | Administrative & support | 2024 |
| Ecofirst Ltd | Wholesale & retail | 2025 |
| Ecoflame Solutions Ltd | Construction | 2026 |
| Ecoflaxstore Ltd | Wholesale & retail | 2024 |
| Ecoframe Group Limited | Transport & logistics | 2026 |