| Entropy Accounting Ltd | Professional & scientific | 2026 |
| Entropy Group Limited | Information & communication | 2023 |
| Entrust Pension Limited | Professional & scientific | 1994 |
| Entry 2 Exit Access Controls Limited | Professional & scientific | 2016 |
| Entwistle Limited | Extraterritorial | 1986 |
| Entwistle Services Limited | Professional & scientific | 2026 |
| Entwistle Thorpe & Company Limited | Professional & scientific | 1919 |
| Entx Ltd | Information & communication | 2023 |
| ENV Digital Limited | Information & communication | 2018 |
| ENV Merch Limited | Professional & scientific | 2018 |
| ENV Trading Limited | Wholesale & retail | 2015 |
| Envair Limited | Professional & scientific | 2006 |
| Envance Limited | Professional & scientific | 2020 |
| Envantage Holdings Limited | Financial services | 2024 |
| Envantage Limited | Professional & scientific | 2004 |
| Envantage Renewables Ltd | Energy | 2014 |
| Envelope Films Limited | Information & communication | 2013 |
| Envi Global Ltd | Information & communication | 2024 |
| Enviar Fightwear Limited | Wholesale & retail | 2018 |
| Enville Mount Limited | Financial services | 2025 |
| Envin Scientific Limited | Manufacturing | 1999 |
| Envin Sensing Solutions Limited | Professional & scientific | 2022 |
| Envion Ltd | Information & communication | 2026 |
| Envipro Environment Protection Equipment Ltd | Manufacturing | 2026 |
| Enviro Ceilings & Partitions Ltd | Construction | 2011 |
| Enviro Crime Ltd | Professional & scientific | 2025 |
| Enviro Response Limited | Water & waste | 2020 |
| Enviro Sustain Limited | Professional & scientific | 2022 |
| Enviro Technical Solutions Limited | Construction | 2011 |
| Enviro Zinc Limited | Extraterritorial | 2020 |
| Envirologic Controls Ltd | Professional & scientific | 2025 |
| Enviromec Consulting Limited | Wholesale & retail | 2023 |
| Environmental Consultancy Limited | Professional & scientific | 2026 |
| Environmental Engineering (UK) Limited | Energy | 1991 |
| Environmental Engineering Limited | Professional & scientific | 2013 |
| Environmental Engineering Partnership Limited | Professional & scientific | 2013 |
| Environmental Journalism Limited | Information & communication | 2020 |
| Environmental Licences Group Limited | Professional & scientific | 2024 |
| Environmental Products Limited | Wholesale & retail | 2019 |
| Environmental Services (North West) Limited | Administrative & support | 2009 |
| Environmental Waste Ltd | Water & waste | 2025 |
| Enviroo Holdings Limited | Water & waste | 2018 |
| Envirotam Ltd | Professional & scientific | 2016 |
| Envirotek Garages Ltd | Construction | 2026 |
| Envise MCR Ltd | Professional & scientific | 2019 |
| Envision Clean Energy Limited | Professional & scientific | 2026 |
| Envision Global Ltd | Construction | 2019 |
| Envision Optics Ltd | Health & social care | 2023 |
| Envision Projex Limited | Administrative & support | 2024 |
| Envision Teaching Ltd | Education | 2025 |
| Envision Worldwide Ltd | Professional & scientific | 2022 |
| Envo Energy Solutions Limited | Professional & scientific | 2017 |
| Envolution (Project Management) Limited | Construction | 2006 |
| Envy 1 Ltd | Wholesale & retail | 2023 |
| Envy Aesthetics Ltd | Other services | 2024 |
| Envy Promotions Limited | Other services | 2019 |
| Envybooks Ltd | Wholesale & retail | 2025 |
| Envyllc Ltd | Professional & scientific | 2026 |
| Envytax Limited | Professional & scientific | 2024 |
| ENW Properties Ltd | Real estate | 2023 |
| Enya Consultants Limited | Information & communication | 2024 |
| Enya Leisure Ltd | Hospitality | 2026 |
| Enza Medical Limited | Health & social care | 2023 |
| Enza TG Properties Ltd | Real estate | 2024 |
| Enzephyr Ltd | Wholesale & retail | 2026 |
| Enzo CCA Ltd | Administrative & support | 2019 |
| Enzo Group Limited | Wholesale & retail | 2019 |
| Enzo Investments Limited | Wholesale & retail | 2015 |
| Enzo-Uk Ltd | Wholesale & retail | 2021 |
| EOA HMO Portfolio Ltd | Construction | 2024 |
| EOA Projects Limited | Real estate | 2026 |
| EOA Property Group Ltd | Financial services | 2023 |
| EOC UK Limited | Manufacturing | 1991 |
| EOD Tech Limited | Administrative & support | 2024 |
| Eohma Limited | Professional & scientific | 2017 |
| EOL IT Services Ltd | Information & communication | 1998 |
| EON Plus Limited | Hospitality | 2023 |
| Eopenbox TV Limited | Wholesale & retail | 2017 |
| EOS Builders Limited | Construction | 2015 |
| EOS Contracting Limited | Agriculture & fishing | 2013 |
| EOS Cycling Holidayslimited | Information & communication | 2004 |
| EOS Holdings Ltd | Financial services | 2022 |
| EOS Packaging Solutions Co Ltd | Wholesale & retail | 2020 |
| Eosemi Limited | Professional & scientific | 2005 |
| Eostre Consulting Ltd | Professional & scientific | 2018 |
| EP Decorators Ltd | Construction | 2024 |
| EP John Cycle Ltd | Manufacturing | 2020 |
| EP Media Limited | Professional & scientific | 2023 |
| EP Properties and Management Ltd | Construction | 2020 |
| EP Sports Ltd | Professional & scientific | 2024 |
| Epab Ltd | Education | 2021 |
| Eparagon Ltd | Wholesale & retail | 2022 |
| EPB Electrical Ltd | Energy | 2014 |
| EPB U.K. Ltd | Information & communication | 2014 |
| EPC Manchester Ltd | Other services | 2021 |
| EPC NOW Ltd | Professional & scientific | 2011 |
| EPD Freight Ltd | Transport & logistics | 2013 |
| Epdg Bacup Ltd | Construction | 2026 |
| Epdg Limited | Construction | 2025 |
| Epes Green Limited | Administrative & support | 2014 |