| Egerton Enterprises Limited | Manufacturing | 2024 |
| EGG Audio Ltd | Other services | 2018 |
| EGG CUP Sailor Limited | Information & communication | 2012 |
| Eggnogg Limited | Manufacturing | 2012 |
| EGO Homes Limited | Real estate | 2018 |
| EGR (Yarmouth) Limited | Real estate | 2024 |
| Egress Concepts Limited | Hospitality | 2015 |
| Eguru Worldwide Ltd | Wholesale & retail | 2022 |
| Egyptian Masonic Order UK Ltd | Other services | 2021 |
| EH Vibes Ltd | Manufacturing | 2025 |
| Ehr-Pay Services Ltd | Information & communication | 2013 |
| EHW Construction Ltd | Administrative & support | 2016 |
| EHY Internationals Ltd | Wholesale & retail | 2025 |
| Eichler Property Ltd | Financial services | 2017 |
| Eidetic Memory Ltd | Arts & recreation | 2011 |
| Eidolon Nexus Ltd | Wholesale & retail | 2025 |
| Eidos Global Community Interest Company | Professional & scientific | 2017 |
| Eight Angels Ltd | Wholesale & retail | 2024 |
| Eight River Limited | Construction | 2022 |
| Eighty Bell Hill Road Ltd | Households | 2023 |
| Eighty One Bodybuilding Ltd | Arts & recreation | 2025 |
| Eightysita Ltd | Information & communication | 2023 |
| Eilsberi Ltd | Real estate | 2021 |
| Eins Creative Agency Ltd | Professional & scientific | 2024 |
| EIO Gifts Limited | Wholesale & retail | 2023 |
| Eirteck UK Limited | Construction | 2021 |
| Eiry Energy UK Limited | Manufacturing | 2022 |
| Eise Events Ltd | Administrative & support | 2024 |
| Eitec Ltd | Information & communication | 2016 |
| EJ & HJ King Limited | Agriculture & fishing | 2025 |
| EJ Andrews Accommodation Ltd | Real estate | 2017 |
| EJ Hair Clinic Limited | Other services | 2023 |
| EJ Phelan Ltd | Information & communication | 2018 |
| EJ Plumbing & Heating Services Ltd | Construction | 2025 |
| EJC Cyber Consulting Limited | Information & communication | 2025 |
| EJD Ltd | Hospitality | 2025 |
| EJI Invest Limited | Transport & logistics | 2014 |
| Ejiofor and Group Limited | Health & social care | 2020 |
| Ejlt Properties Ltd | Real estate | 2025 |
| EJM Capital Limited | Real estate | 2019 |
| Ejmtm Limited | Financial services | 2012 |
| EJS Plumbing & Engineering Services Ltd | Construction | 2003 |
| EJS Wealth Management Limited | Financial services | 2006 |
| EK & G Enterprise Ltd | Wholesale & retail | 2022 |
| EK Hair Limited | Other services | 2019 |
| EK Imaging Limited | Health & social care | 2019 |
| EK Newport Ltd | Administrative & support | 2022 |
| EK Services Ltd | Arts & recreation | 2021 |
| EK SW Holdings Limited | Financial services | 2024 |
| Ekan Ltd | Financial services | 2026 |
| Ekatva Limited | Financial services | 2026 |
| EKG Health Ltd | Health & social care | 2023 |
| Ekko Music Group Limited | Information & communication | 2019 |
| EKM Corporation Limited | Transport & logistics | 2025 |
| Ekologik Ltd | Wholesale & retail | 2021 |
| Ekorn Ltd | Professional & scientific | 2015 |
| EKR Support Services Ltd | Other services | 2022 |
| EL & K Ltd | Wholesale & retail | 2018 |
| EL Agamy Ltd | Households | 2024 |
| EL Buho Limited | Real estate | 2026 |
| EL CAP Advisors Limited | Professional & scientific | 2021 |
| EL Colmado Imports Ltd | Hospitality | 2015 |
| EL Colmado Ltd | Hospitality | 2012 |
| EL Electric Services Limited | Manufacturing | 2025 |
| EL Mangu DE GYS Ltd | Hospitality | 2023 |
| EL Medical Limited | Administrative & support | 2014 |
| EL Rincon Limited | Hospitality | 2007 |
| EL Verano Azul Ltd | Health & social care | 2024 |
| El-Completions Limited | Professional & scientific | 2023 |
| ELA Bath Limited | Hospitality | 2018 |
| Elaine Chivers Consultancy Services Limited | Information & communication | 1995 |
| Elaine Wilson Ltd | Other services | 2018 |
| Elaine's Kitchen Ltd | Hospitality | 2017 |
| Elambosa Ltd | Wholesale & retail | 2025 |
| Elanjay Ltd | Professional & scientific | 2021 |
| Elanston Limited | Transport & logistics | 2018 |
| Elation Sales Partners LLP | | 2014 |
| Elberton Consulting Limited | Professional & scientific | 2015 |
| Elberton Village Hall Limited | Real estate | 2008 |
| Elbeth Ltd | Real estate | 2020 |
| Elbm Consulting Ltd | Information & communication | 2011 |
| ELC Bristol Limited | Education | 2022 |
| Elcatech Consulting Ltd | Information & communication | 2023 |
| Elder Blackwood Limited | Financial services | 2021 |
| Elderberries Cohousing Ltd | Construction | 2023 |
| Elderberry Walk Management Company Limited | Real estate | 2019 |
| Eldon House Limited | Hospitality | 2019 |
| Eldon Windmill Management Company Limited | Real estate | 2023 |
| Eldridge Solutions Ltd | Hospitality | 2025 |
| Eleanor Fausing Ltd | Wholesale & retail | 2021 |
| Eleanor Ltd | Real estate | 2018 |
| Elec World Ltd | Manufacturing | 2017 |
| Elec&Mech Ltd | Other services | 2020 |
| Elecmech Consultancy Limited | Energy | 2005 |
| Elecmech Group Limited | Financial services | 2026 |
| Elecsec UK Limited | Construction | 2008 |
| Elecsolar Southwest Limited | Construction | 2022 |
| Elect Capital UK Limited | Financial services | 2024 |
| Elect Capital UK One Limited | Other services | 2026 |
| Electme Limited | Professional & scientific | 2015 |