| Elmstone Creations Ltd | Other services | 2000 |
| ELS Analytics Ltd | Information & communication | 2018 |
| ELS Control Limited | Extraterritorial | 2016 |
| ELS Showjumping Ltd | Transport & logistics | 2026 |
| Elstree Flexpower Ltd | Energy | 2016 |
| Elusive Flooring Ltd | Construction | 2024 |
| Elwood Computer Services Ltd | Information & communication | 2020 |
| Elysian Escapes Limited | Administrative & support | 2012 |
| EM Real Estate Holdings Ltd | Real estate | 2024 |
| EMA Vino Ltd | Wholesale & retail | 2025 |
| Ember Consulting Limited | Professional & scientific | 2011 |
| Embrace Living Live Ltd | Arts & recreation | 2022 |
| EMC Cement Holdings Limited | Manufacturing | 2016 |
| EMC Cement Services Limited | Manufacturing | 2016 |
| Emek's Consulting Ltd | Professional & scientific | 2023 |
| Emeline Art Limited | Wholesale & retail | 2024 |
| Emenoe Ltd | Wholesale & retail | 2024 |
| Emerald Accessories and Footwear Limited | Wholesale & retail | 2016 |
| Emerald Aviation Limited | Professional & scientific | 1997 |
| Emerald Crop Science Limited | Agriculture & fishing | 2017 |
| Emerald Duck Studio Ltd | Arts & recreation | 2014 |
| Emerald Dynamics (UK) Ltd | Information & communication | 2023 |
| Emerald Management Holdings Ltd | Real estate | 2024 |
| Emerald Property & Letting Ltd | Real estate | 2024 |
| Emerald Research Limited | Agriculture & fishing | 2011 |
| Emerge Digital Limited | Information & communication | 2002 |
| Emergent Expertise Consultancy Ltd | Professional & scientific | 2019 |
| Emergent Generation CIC | Education | 2024 |
| Emergent Risk International Limited | Professional & scientific | 2021 |
| Emeritus Consultancy Ltd | Education | 2017 |
| Emerypark Management Limited | Households | 2020 |
| EMF the Band Limited | Information & communication | 2018 |
| Emhaz Limited | Professional & scientific | 2005 |
| Emissions Impossible Limited | Extraterritorial | 2007 |
| EML Property Development Ltd | Construction | 2025 |
| Emma Massingham Consulting Ltd | Professional & scientific | 2015 |
| Emma T Lynch Limited | Professional & scientific | 2012 |
| Emma Vetterlein Ltd | Professional & scientific | 2025 |
| Emmc Consulting Ltd | Professional & scientific | 2025 |
| Emmegi Heat Exchangers UK Limited | Wholesale & retail | 2013 |
| Emonster Limited | Wholesale & retail | 2007 |
| Emotional Rescue Limited | Information & communication | 1985 |
| Emotive Landscapes Ltd | Administrative & support | 2014 |
| Empathyce Limited | Professional & scientific | 2012 |
| Empire Roofing and Guttering Limited | Construction | 2025 |
| Emporium Gifts Limited | Wholesale & retail | 2011 |
| Empower Marketing Limited | Professional & scientific | 2018 |
| Empty Billy Limited | Financial services | 2017 |
| EMU Apps Limited | Information & communication | 2021 |
| EMY Nails Ltd | Other services | 2026 |
| Enabling Success Ltd | Administrative & support | 2006 |
| Enclave Computer Consultants Ltd | Wholesale & retail | 2024 |
| Encompass Services Limited | Health & social care | 2020 |
| Encore Home Technology LLP | | 2017 |
| Encore PR Ltd | Professional & scientific | 2013 |
| Endean Enterprises UK Limited | Real estate | 2024 |
| Endean Holdings UK Limited | Financial services | 2024 |
| Endelea Automotive Consulting Ltd | Professional & scientific | 2012 |
| Enderby Bess Limited | Energy | 2022 |
| Enderby Green NG Limited | Financial services | 2022 |
| Endurance Investments Limited | Real estate | 2023 |
| Enecca Limited | Real estate | 2011 |
| Enekes Luggage Ltd | Wholesale & retail | 2019 |
| Energy Creative Solutions Ltd | Professional & scientific | 2023 |
| Energy Gate Ltd | Professional & scientific | 2025 |
| Energy Pack (Surveyors) Limited | Professional & scientific | 2006 |
| Energy Public Relations Limited | Professional & scientific | 1999 |
| Engaging Content Limited | Information & communication | 2015 |
| Engall Castle Limited | Real estate | 2013 |
| Englands Network Limited | Professional & scientific | 2002 |
| English and Vocational Academy (EVA) Ltd | Education | 2011 |
| English Holiday Cruises Limited | Transport & logistics | 2004 |
| Enhance Control Limited | Professional & scientific | 2021 |
| Enigma Event Tattooing Ltd | Other services | 2026 |
| Enigma Studios Limited | Wholesale & retail | 2022 |
| Enisol Limited | Information & communication | 2024 |
| Enixus Limited | Professional & scientific | 2005 |
| Enjoy Cafes (Gloucester) Ltd | Hospitality | 2013 |
| Enjoy Recruitment Group Limited | Administrative & support | 2002 |
| ENO Plumbing & Heating Specialists Ltd | Construction | 2024 |
| Enroly Ltd | Administrative & support | 2017 |
| Ensō INK Studio Limited | Professional & scientific | 2024 |
| Enterprise Process Modelling Ltd | Information & communication | 2012 |
| Entertainment Direct Ltd | Wholesale & retail | 2024 |
| Enthusiasm Limited | Professional & scientific | 2010 |
| Entire LLP | | 2024 |
| Entrepleio Consulting Limited | Professional & scientific | 2021 |
| Envious Digital Limited | Information & communication | 2018 |
| Envious Marketing Ltd | Information & communication | 2013 |
| Envira Group Limited | Construction | 2025 |
| Enviro Solar Films Limited | Administrative & support | 2013 |
| Envirofield Limited | Agriculture & fishing | 2009 |
| Environmental Flow Ltd | Professional & scientific | 2018 |
| Environmental Visage Ltd | Administrative & support | 2003 |
| Enviroscape (UK) Limited | Real estate | 2007 |
| Envirotek-Uk Ltd. | Administrative & support | 2026 |
| Envirya Ltd. | Professional & scientific | 2000 |
| Envivo Ltd | Information & communication | 2006 |
| Envy Eyewear Ltd | Wholesale & retail | 2005 |
| Eots Events Ltd | Administrative & support | 2017 |