| EHL Construction Ltd | Construction | 2024 |
| Ehonjie Property Rentals Limited | Real estate | 2023 |
| Ehren Brook Care Ltd | Health & social care | 2023 |
| Eileen Limited | Households | 2026 |
| Ejmiah Ltd | Extraterritorial | 2021 |
| EK Tuning Limited | Wholesale & retail | 2019 |
| Ekushe Limited | Hospitality | 2014 |
| Elay Properties Limited | Real estate | 2023 |
| Elbag Limited | Hospitality | 2026 |
| ELCURIOSO4U Ltd | Hospitality | 2024 |
| Elecdecks Limited | Construction | 2023 |
| Electric Point Ltd | Administrative & support | 2011 |
| Elegant Fashions (London) Ltd | Wholesale & retail | 2024 |
| Elegant Stone Designs Ltd | Construction | 2025 |
| Element One Studio Ltd | Professional & scientific | 2023 |
| Elemental Engineering Services Ltd | Professional & scientific | 2017 |
| Elements Commercial Ltd | Construction | 2024 |
| Elevate Herts CIC | Arts & recreation | 2025 |
| Elevator Pros Limited | Professional & scientific | 2024 |
| Elia CG Ltd | Hospitality | 2026 |
| Elias Property Partners Ltd | Real estate | 2020 |
| Elikiahealth Limited | Health & social care | 2021 |
| Elit CLEANING87 Limited | Administrative & support | 2022 |
| Elite Consultants Ltd | Professional & scientific | 2024 |
| Elite Cooling Ltd | Professional & scientific | 2026 |
| Elite Finish Decorating Ltd | Construction | 2026 |
| Elite Laser Ltd | Other services | 2018 |
| Elitok Law Ltd | Professional & scientific | 2024 |
| Ella Accounts Ltd | Professional & scientific | 2024 |
| Ella Organics Ltd | Wholesale & retail | 2019 |
| Elle LA Rose Ltd. | Wholesale & retail | 2012 |
| Elliott James Investments Ltd | Construction | 2026 |
| Elliott Motor Company Ltd | Wholesale & retail | 2018 |
| Elliott Roofing and Property Maintenance Ltd | Construction | 2024 |
| Ellis and Gottschalk Limited | Agriculture & fishing | 2021 |
| Elmaz Home Ltd | Construction | 2025 |
| ELMO3 Limited | Real estate | 2020 |
| ELMO4 Ltd | Professional & scientific | 2026 |
| Eloquent AI Technologies Ltd | Information & communication | 2025 |
| Elriz Limited | Hospitality | 2022 |
| ELZ Investment Ltd | Real estate | 2026 |
| Embassy of Gold Ltd | Wholesale & retail | 2021 |
| Ember Amor Limited | Manufacturing | 2024 |
| Emerald Forge Ltd | Construction | 2025 |
| Emerald SVS Limited | Construction | 2020 |
| EMF Endeavours Limited | Information & communication | 2010 |
| EMG PM Limited | Information & communication | 2015 |
| Emizara Ltd | Construction | 2011 |
| EMK Property Investments Limited | Real estate | 2023 |
| Emkk Limited | Hospitality | 2024 |
| EMM Investments Limited | Financial services | 2023 |
| Emma Brigitte Martin Bespoke Ltd | Manufacturing | 2025 |
| Emmerson New Homes Ltd | Construction | 2024 |
| Emmia Ltda Ltd | Real estate | 2026 |
| Empire Aerials Ltd | Information & communication | 2009 |
| Empire Architectural Services Limited | Professional & scientific | 2009 |
| Empson Heating Ltd | Construction | 2014 |
| Emyclem Limited | Health & social care | 2024 |
| EN Catering Ltd | Hospitality | 2022 |
| Enfield Electrical Services Limited | Construction | 2016 |
| Enfield Garden Services Ltd | Administrative & support | 2021 |
| Enfield Gunes Limited | Hospitality | 2025 |
| Enfield Scorpions Basketball Club Community Interest Company | Arts & recreation | 2020 |
| Enigma Investigations Limited | Administrative & support | 2007 |
| Enigma Investigations Private Detective Agency LLP | | 2008 |
| Enigma Trackers LLP | | 2008 |
| Enron Estates Holdings Limited | Real estate | 2025 |
| Enron Estates Properties Limited | Real estate | 2025 |
| Enterprise Motors (Enfield) Limited | Real estate | 1964 |
| Enviro-Tek Property Management Limited | Real estate | 2019 |
| Enzo Build Solutions Ltd | Construction | 2026 |
| Enzoni UK Ltd | Information & communication | 2015 |
| Ephesus Media Ltd | Professional & scientific | 2025 |
| Epiphany Innovations Limited | Wholesale & retail | 2012 |
| EPN International Limited | Financial services | 2013 |
| Epping Forest Site a Management Company Limited | Real estate | 2021 |
| Epping Forest Site B Management Company Limited | Real estate | 2021 |
| EQUIP100 Ltd | Professional & scientific | 2022 |
| Eregion Ltd | Information & communication | 2024 |
| Eren Beauty Lounge Ltd | Other services | 2021 |
| Erguden Properties Ltd | Real estate | 2026 |
| Eric Barbers Limited | Other services | 2018 |
| Erinzen Limited | Energy | 2020 |
| Erko ALL UP Ltd | Transport & logistics | 2016 |
| ERM Removals Limited | Transport & logistics | 2025 |
| Es'States Properties Limited | Real estate | 2022 |
| Esab Finance Holdings Limited | Financial services | 2022 |
| Esab Group (UK) Limited | Manufacturing | 1933 |
| Esab Holdings Limited | Professional & scientific | 1982 |
| Esders Limited | Administrative & support | 1997 |
| Esol Awards Limited | Education | 2022 |
| Essential London Limited | Professional & scientific | 2008 |
| Essex Farm Foods Ltd | Manufacturing | 2015 |
| Essex Petroleum Co. Ltd | Extraterritorial | 1982 |
| Estate of FAB Ltd | Real estate | 2015 |
| Estr Estates Ltd | Real estate | 2017 |
| Estudio Oddfellow Ltd | Information & communication | 2014 |
| Esunshine Properties Limited | Real estate | 2014 |
| Esyo Properties Ltd | Real estate | 2024 |
| Etatt Limited | Real estate | 2010 |