| Eleven Properties Limited | Real estate | 2017 |
| Eleven UK Holding Limited | Financial services | 2023 |
| Elgindi Ltd | Health & social care | 2021 |
| Eliem Therapeutics (UK) Ltd | Professional & scientific | 2019 |
| Elijah Technical Solutions Limited | Administrative & support | 2014 |
| Elimident Ltd | Wholesale & retail | 2018 |
| Elion (UK) Limited | Information & communication | 2026 |
| Elisha RAI Limited | Professional & scientific | 2021 |
| Elite Collection Club Ltd | Wholesale & retail | 2018 |
| Elite Energy (NW) Limited | Construction | 2017 |
| Elite Family Medical Care Limited | Health & social care | 2024 |
| Elite FX Management Ltd | Financial services | 2019 |
| Elite Home and Commercial Ltd | Other services | 2012 |
| Elite Innovative IT Solutions Ltd | Information & communication | 2026 |
| Elite Medical Overseas Ltd | Health & social care | 2022 |
| Elite Physique Programme Limited | Arts & recreation | 2018 |
| Elite Travel Boutique Limited | Administrative & support | 2007 |
| Elite Venue Selection Hotels Ltd. | Hospitality | 2019 |
| Elite Web Studio Ltd | Information & communication | 2009 |
| Elixir Capital Limited | Professional & scientific | 2019 |
| ELJ Design Limited | Information & communication | 2017 |
| Eljax Packaging Limited | Professional & scientific | 2024 |
| ELK Medical Limited | Health & social care | 2011 |
| Ella Rose Financial Ltd | Financial services | 2022 |
| Ella's of Cheshire Ltd | Hospitality | 2026 |
| Ellerslie (Bowdon) Management Company Limited | Households | 2002 |
| Ellerslie Homes Limited | Construction | 2012 |
| Ellie Holdings Ltd | Financial services | 2022 |
| Elliek Consulting Limited | Professional & scientific | 2024 |
| Ellingham Tsco Solutions Ltd | Construction | 2022 |
| Elliot Campbell Media Ltd | Information & communication | 2025 |
| Elliot Marsh Limited | Administrative & support | 1999 |
| Elliot Maunders Homes Limited | Construction | 1998 |
| Ellis Care Consultancy Limited | Professional & scientific | 2021 |
| Ellis International Associates Limited | Professional & scientific | 2007 |
| Ellis Rees Medical Services Limited | Other services | 2007 |
| Elmbank Technology Limited | Professional & scientific | 2019 |
| Elmclose Limited | Administrative & support | 2003 |
| Elmdene Management Association Limited | Extraterritorial | 1992 |
| Elmes Consulting Limited | Information & communication | 2021 |
| Elmfield Properties Limited | Real estate | 1995 |
| Elmm Construction Ltd | Construction | 2023 |
| Elmscot Day Nursery Limited | Education | 2001 |
| Elmscot Group Limited | Professional & scientific | 2005 |
| Elmtree & Eagle Advisors Limited | Professional & scientific | 2016 |
| Elmtree Investment Properties Limited | Real estate | 2015 |
| Eloa Properties Ltd | Households | 2025 |
| Eloquia Ltd | Professional & scientific | 2020 |
| Elorehai Limited | Professional & scientific | 2020 |
| Elrh Medi Ltd | Health & social care | 2026 |
| Elso Clean Limited | Administrative & support | 2023 |
| Elucidon Group Limited | Information & communication | 2002 |
| Elvenia Limited | Health & social care | 2021 |
| Elysian Sky Properties Limited | Real estate | 2025 |
| Elysian UK Holdco, Ltd. | Financial services | 2021 |
| Elysian UK, LLP | | 2021 |
| Elze Consultancy Ltd | Information & communication | 2021 |
| EM Food Safety Consultancy Limited | Professional & scientific | 2020 |
| EM Partners - Executive Management Limited | Professional & scientific | 2020 |
| EM Squared Limited | Professional & scientific | 2013 |
| Emaan Holdings Ltd | Real estate | 2016 |
| Emaxx UK Limited | Financial services | 2026 |
| Embedded Systems Solutions Limited | Professional & scientific | 2022 |
| Ember Diamonds Ltd | Wholesale & retail | 2023 |
| Embodied Agility Limited | Professional & scientific | 2022 |
| Embrace Enterprises Limited | Information & communication | 2008 |
| EMC Analysis Limited | Administrative & support | 2025 |
| EMC Lighting and Electrical Ltd | Construction | 2014 |
| Emerald Building Solutions Limited | Construction | 2022 |
| Emerald Change Agency Limited | Information & communication | 2015 |
| Emerald Sales Limited | Administrative & support | 2012 |
| Emes Blackburn Ltd | Wholesale & retail | 2016 |
| Emesel I.T Solutions Limited | Information & communication | 2023 |
| Emiat Limited | Wholesale & retail | 2015 |
| Emilada Limited | Wholesale & retail | 2020 |
| Emily Furey Ltd | Arts & recreation | 2018 |
| Emissco Limited | Manufacturing | 2017 |
| Emma Clarke Ltd | Other services | 1997 |
| Emma Kyte Aesthetics Limited | Health & social care | 2019 |
| Emma Swindells Limited | Health & social care | 2010 |
| Emmerson Accountancy Limited | Professional & scientific | 2005 |
| Emmerson Breeders Limited | Agriculture & fishing | 2020 |
| Emote Systems Limited | Information & communication | 2022 |
| Emotie Technologies Limited | Professional & scientific | 2016 |
| Emovate Limited | Professional & scientific | 2024 |
| Empeegeepee Digital Limited | Administrative & support | 2018 |
| Emperial Consultancy Ltd | Professional & scientific | 2024 |
| Emperial Technology Co Ltd | Manufacturing | 2022 |
| Emperor Cannosta Limited | Hospitality | 2000 |
| Empirica Consulting Ltd | Professional & scientific | 2006 |
| Empowering Journeys CIC | Health & social care | 2024 |
| Emptorio Limited | Professional & scientific | 2012 |
| Empyrean-Online Limited | Wholesale & retail | 2020 |
| Emworld Limited | Professional & scientific | 2021 |
| Enabling Minds Ltd | Education | 2023 |
| Enamel Dental Holdings Limited | Professional & scientific | 2017 |
| Enamel Lightwater Limited | Health & social care | 2018 |
| Enamel Priory Park Limited | Health & social care | 2016 |
| Enamel ST Neots Limited | Health & social care | 2018 |
| Enamel Swallownest Limited | Health & social care | 2013 |