| EL Tenor Ltd | Wholesale & retail | 2023 |
| El's Medical Services Limited | Health & social care | 2023 |
| El-Resala for Animal Feed Trading Ltd | Wholesale & retail | 2024 |
| El-Ya Business Ltd | Wholesale & retail | 2024 |
| EL33T Systems Limited | Manufacturing | 2014 |
| ELA Contractors Limited | Construction | 2020 |
| ELA Food Trading Ltd | Hospitality | 2015 |
| ELA Global Ltd | Wholesale & retail | 2024 |
| ELA Industrie LLP | | 2025 |
| Elaa-Uk Ltd | Other services | 2018 |
| Elaaziz Ltd | Other services | 2025 |
| Elade Consult Ltd | Real estate | 2017 |
| Elaine Davis Dance Design Limited | Manufacturing | 2015 |
| Elaine LUX Ltd | Wholesale & retail | 2021 |
| Elament Ltd | Manufacturing | 2020 |
| Elan Rose Ltd | Wholesale & retail | 2021 |
| Elan Valley Lodge Ltd. | Education | 1988 |
| Elancote Limited | Health & social care | 2022 |
| Elands Healthcare Ltd | Public administration | 2019 |
| Elanmanor Limited | Health & social care | 2009 |
| Elara Training Limited | Education | 2025 |
| Elattar Ltd. | Wholesale & retail | 2025 |
| Elbash Limited | Health & social care | 2021 |
| Elbayoumi Logistics Ltd | Transport & logistics | 2016 |
| Elbe Industrial Tyres Limited | Transport & logistics | 2011 |
| ELD Surgery Ltd | Health & social care | 2019 |
| Eldan Properties Ltd | Real estate | 2025 |
| Eldent Limited | Health & social care | 2017 |
| Elderhomecare Ltd | Health & social care | 2019 |
| Elderly Aids Limited | Wholesale & retail | 2023 |
| Eldonridge Ltd | Real estate | 2015 |
| Eleanor Laurie Investments Limited | Real estate | 2022 |
| Eleanor Zenith Ltd | Wholesale & retail | 2026 |
| Elec 008 Ltd | Other services | 2019 |
| Elec City Ltd | Other services | 2018 |
| Elec Solutions 001 Ltd | Administrative & support | 2021 |
| Elec Solutions 008 Ltd | Administrative & support | 2021 |
| Elec Solutions 05 Ltd | Administrative & support | 2020 |
| Elec Solutions 13 Ltd | Administrative & support | 2021 |
| Elec Solutions 20 Ltd | Administrative & support | 2022 |
| Elec Solutions 201 Ltd | Other services | 2019 |
| Elec Solutions 202 Ltd | Other services | 2019 |
| Elec Solutions 203 Ltd | Other services | 2019 |
| Elec Solutions 21 Ltd | Administrative & support | 2022 |
| Elec Solutions 40 Ltd | Administrative & support | 2022 |
| Elec Solutions 41 Ltd | Administrative & support | 2022 |
| Elec Solutions 5 Ltd | Administrative & support | 2021 |
| Elec TEK Holdings Ltd | Real estate | 2024 |
| Elec TEK Installations Ltd | Energy | 2010 |
| Elecsonic Ltd | Information & communication | 2025 |
| Electrafence Limited | Construction | 2007 |
| Electric Drive Motors Limited | Wholesale & retail | 2024 |
| Electric General Ltd | Construction | 2012 |
| Electric Reggae Limited | Hospitality | 2023 |
| Electric Revelry Ltd | Administrative & support | 2009 |
| Electrical 22 Ltd | Construction | 2020 |
| Electrical and Building Maintenance Services Limited | Water & waste | 2017 |
| Electrical Distribution Direct Limited | Wholesale & retail | 2014 |
| Electrical Plus UK Limited | Manufacturing | 2002 |
| Electrical Pro Ltd | Construction | 2014 |
| Electrical T&C - Maintenance Ltd | Construction | 2024 |
| Electrical Wholesale Supplies (Swansea) Limited | Wholesale & retail | 2010 |
| Electricall South Wales Limited | Construction | 2019 |
| Electricians Isle of Wight Ltd | Construction | 2018 |
| Electricorgasrenewals Limited | Administrative & support | 2019 |
| Electrigasfix Ltd | Manufacturing | 2020 |
| Electrisity Limited | Construction | 2017 |
| Electro Business Trading Company Limited | Extraterritorial | 2018 |
| Electroboutique Limited | Wholesale & retail | 2025 |
| Electromagnetic Geoservices UK Limited | Mining & quarrying | 2002 |
| Electromatics Limited | Wholesale & retail | 2019 |
| Electronics Sotomi Limited | Financial services | 2024 |
| Electrostatics Limited | Construction | 2003 |
| Electvicks Ltd | Construction | 2018 |
| Elegance Beyond Time Clothes Limited | Wholesale & retail | 2026 |
| Elegance Delicious Food Limited | Manufacturing | 2023 |
| Elegance Rentals Ltd | Real estate | 2018 |
| Elegant Cars Limited | Administrative & support | 1982 |
| Elegant Decorators Ltd | Other services | 2016 |
| Elegant Energy Ltd | Wholesale & retail | 2019 |
| Elegant Patios and Driveways Cardiff Ltd | Construction | 2025 |
| Eleke Digital Project Ltd | Information & communication | 2026 |
| Elektronic Central Limited | Wholesale & retail | 2024 |
| Elemeca Ltd | Information & communication | 2025 |
| Elemen Limited | Real estate | 2023 |
| Element Leadership Consulting Limited | Professional & scientific | 2003 |
| Element Level Tech Ltd | Information & communication | 2025 |
| Element Productions Limited | Information & communication | 1991 |
| Element Services Ltd | Wholesale & retail | 2026 |
| Element Surfacing Ltd | Construction | 2020 |
| Elemental Health Ltd | Education | 2015 |
| Elements 82 Ltd | Hospitality | 2023 |
| Elements OBM Limited | Professional & scientific | 2024 |
| Elements Properties Wales Ltd | Real estate | 2022 |
| Elements Technik Limited | Manufacturing | 2025 |
| Elen Bicknell Ltd | Professional & scientific | 2025 |
| Elen Financial Software Ltd | Information & communication | 2018 |
| Elency Group Ltd | Wholesale & retail | 2025 |
| Elequik Ltd | Construction | 2020 |
| Elequip Projects Limited | Wholesale & retail | 1933 |