| Eltham Asphalte Company Limited | Construction | 2010 |
| Eltham Bees Limited | Agriculture & fishing | 2019 |
| Eltham Group Ltd | Financial services | 2019 |
| Eltham Park Motors Ltd | Manufacturing | 2017 |
| Eltham Welding Supplies Limited | Wholesale & retail | 1993 |
| Elusive Goose Ltd | Professional & scientific | 2021 |
| Eluw Limited | Professional & scientific | 2008 |
| Elvissali Limited | Transport & logistics | 2025 |
| ELX Global Ltd | Financial services | 2019 |
| ELY Asset Management Limited | Real estate | 2012 |
| ELY Property Investments Ltd | Real estate | 2012 |
| Elysium Ventures Ltd | Real estate | 2022 |
| Emage Production Ltd | Information & communication | 2026 |
| Emardi Limited | Transport & logistics | 2018 |
| Embedded Synergy Ltd | Information & communication | 2014 |
| Embryo Quality Secrets Ltd | Professional & scientific | 2025 |
| EMC Electrical Services Ltd | Construction | 2019 |
| EMC Electrical Solutions Ltd | Construction | 2024 |
| Emdad Developments Ltd | Real estate | 2025 |
| Emdera Care Ltd | Administrative & support | 2025 |
| Emdjo Ltd | Construction | 2014 |
| Emergency Housing Limited | Real estate | 2015 |
| Emerging Rock Bands Limited | Information & communication | 2022 |
| Emerson Estates Ltd | Real estate | 2019 |
| Emet Data Consulting Limited | Information & communication | 2024 |
| Emet Hub Limited | Real estate | 2023 |
| Emet Produce Ltd | Wholesale & retail | 2025 |
| Emgerm Limited | Construction | 2014 |
| Emiker Limited | Wholesale & retail | 2010 |
| Emily Bruce Ltd | Financial services | 2025 |
| Emily Leeming Ltd | Professional & scientific | 2023 |
| Eminence Business Intelligence Ltd | Information & communication | 2017 |
| EMM Wilmington Ltd | Real estate | 2024 |
| Emma Youell Design Ltd | Information & communication | 2024 |
| Emmak Global Solutions Limited | Information & communication | 2016 |
| Emmanuel Aghogho Global Healthcare Ltd | Health & social care | 2016 |
| Emob Ltd | Wholesale & retail | 2015 |
| Empire Building Solutions London Ltd | Construction | 2019 |
| Empire Carpentry and Building Services Limited | Construction | 2010 |
| Emplo Connect Limited | Administrative & support | 2022 |
| Employment Law & HR Solutions Ltd | Professional & scientific | 2007 |
| Empower Care Living Ltd | Health & social care | 2025 |
| Empowering Parents UK Ltd | Education | 2023 |
| Empreso Network Limited | Information & communication | 2019 |
| Empreso Private Clients Limited | Financial services | 2019 |
| Empreso Property Management Limited | Real estate | 2019 |
| EMS Logistics UK Limited | Transport & logistics | 2007 |
| Enaid Limited | Professional & scientific | 2005 |
| Endeavour MAT | Education | 2011 |
| Endianshan View Ltd | Hospitality | 2023 |
| Enduraware Ltd | Manufacturing | 2026 |
| Endured Championship Limited | Real estate | 2025 |
| Endured Clothing Ltd | Wholesale & retail | 2024 |
| Endured Professional Services Ltd | Arts & recreation | 2025 |
| Eneles Technologies Ltd | Information & communication | 2023 |
| Energy Efficient Solutions Ltd | Administrative & support | 2003 |
| Energy Engineering (London) Ltd | Construction | 2016 |
| Energy Engineering Ltd | Construction | 2008 |
| Energy Transition Consulting Limited | Professional & scientific | 2019 |
| Enevate Homes Limited | Professional & scientific | 2016 |
| Engie Impact UK Limited | Professional & scientific | 1999 |
| English Terroir Limited | Professional & scientific | 2010 |
| Enidema Property Limited | Real estate | 2024 |
| Enitan Limited | Real estate | 2023 |
| Enjieohanna Services Limited | Health & social care | 2014 |
| Enjoy Property Management Ltd | Real estate | 2024 |
| Enjoy Record Label Ltd | Information & communication | 2025 |
| Enjoy Verse Ltd | Construction | 2019 |
| Enle Group Ltd | Health & social care | 2016 |
| Enlightened Chinese Medicine Limited | Health & social care | 2017 |
| Ennogen Healthcare Developments Limited | Manufacturing | 2025 |
| Ennogen Healthcare International Limited | Manufacturing | 2020 |
| Ennogen Healthcare Ltd | Manufacturing | 2011 |
| Ennogen Healthcare UK Ltd | Manufacturing | 2025 |
| Ennogen Holdings Limited | Financial services | 2021 |
| Ennogen Investments Ltd | Manufacturing | 2021 |
| Ennogen IP Ltd | Manufacturing | 2021 |
| Ennogen Pharma Ltd | Manufacturing | 2011 |
| Enokess Limited | Construction | 2015 |
| Enquode Ltd | Information & communication | 2025 |
| Enspìra Ltd | Health & social care | 2020 |
| Entity Accounting Ltd | Professional & scientific | 2016 |
| Entojom Medicals Limited | Health & social care | 2009 |
| Entranet Ltd | Information & communication | 2014 |
| Entrylock Software Limited | Information & communication | 2003 |
| Envelope Printing Limited | Manufacturing | 2026 |
| Enviro Group Services Limited | Administrative & support | 2025 |
| Enviro Site Solutions Ltd | Transport & logistics | 2022 |
| Enviroawards Connect Limited | Water & waste | 2026 |
| Envirolec Smart Energy Solutions (London) Limited | Construction | 2019 |
| Epco Produce Company Limited | Wholesale & retail | 2020 |
| Epitech Investment Ltd | Real estate | 2022 |
| Equantra Limited | Construction | 2007 |
| Equi Property Limited | Real estate | 2022 |
| Equisic Limited | Information & communication | 2017 |
| Equita Recovery & Collections Limited | Extraterritorial | 2008 |
| Equitable House Business Centre Limited | Real estate | 2024 |
| Equitable House Ltd. | Real estate | 2009 |
| Equitable Projects Limited | Construction | 2015 |
| Equitchoice Limited | Administrative & support | 1985 |