| Equiniti Financial Services Limited | Financial services | 2007 |
| Equiniti Global Payments Limited | Financial services | 2007 |
| Equiniti Holdings Limited | Professional & scientific | 2007 |
| Equiniti ISA Nominees Limited | Administrative & support | 2007 |
| Equiniti Limited | Administrative & support | 2007 |
| Equiniti Registrars Nominees Limited | Administrative & support | 2007 |
| Equiniti Savings Nominees Limited | Administrative & support | 2007 |
| Equiniti Services Limited | Financial services | 1963 |
| Equiniti Share Plan Trustees Limited | Financial services | 2000 |
| Equiniti Solutions Limited | Extraterritorial | 1997 |
| Equinity Trailers Ltd | Manufacturing | 2025 |
| Equity Coaching Ltd | Professional & scientific | 2018 |
| ER3 Group Ltd | Construction | 2025 |
| ERA (Cheltenham) Limited | Financial services | 2011 |
| Erbium Services Limited | Professional & scientific | 2011 |
| ERF Homes Ltd | Real estate | 2021 |
| Eric Benazech Limited | Professional & scientific | 2023 |
| Erroll Court (Hove) Limited | Other services | 1993 |
| Ersa Medical UK Ltd | Wholesale & retail | 2025 |
| Erso Capital Limited | Administrative & support | 2021 |
| Erso Limited | Administrative & support | 2020 |
| Erso Specialty Limited | Administrative & support | 2025 |
| Ertuzun Ltd | Wholesale & retail | 2019 |
| Esaa Delivery Ltd | Transport & logistics | 2022 |
| Esca Events Ltd | Hospitality | 2017 |
| Escape Grill and Bar Ltd | Hospitality | 2019 |
| Escape Worthing Ltd | Hospitality | 2022 |
| Escapist Travel Ltd | Administrative & support | 2024 |
| Esco (Brighton) Ltd | Real estate | 2014 |
| Eshna Nutrition Ltd | Hospitality | 2019 |
| ESK Enterprises Limited | Hospitality | 2012 |
| ESP Southern Consultancy Ltd | Professional & scientific | 2016 |
| Espalier Gardens Limited | Administrative & support | 2022 |
| Esplanade Court Worthing Limited | Professional & scientific | 2018 |
| Esquire Limited | Extraterritorial | 2007 |
| Essemar Limited | Professional & scientific | 2013 |
| Essence Facilitation Limited | Administrative & support | 2012 |
| Established 85 Coffee Works Ltd | Manufacturing | 2025 |
| Estates Today Limited | Other services | 1988 |
| Esteruary Ltd | Wholesale & retail | 2022 |
| Esther Southern Case Management Limited | Health & social care | 2025 |
| Ethica International Limited | Professional & scientific | 2025 |
| Ethical Group Ltd | Administrative & support | 2004 |
| Ethical Parking Management Ltd | Extraterritorial | 2004 |
| ETR Music Ltd | Arts & recreation | 2025 |
| Eturi Ltd | Information & communication | 2022 |
| EU Marketz Ltd | Wholesale & retail | 2025 |
| Euphoric Ltd | Other services | 2003 |
| Euro 7 Logistics Limited | Administrative & support | 2022 |
| Euro Climbing News Ltd | Information & communication | 2024 |
| Euro Peripheral Engineering Limited | Professional & scientific | 1986 |
| Euro Properties Sussex Limited | Real estate | 2017 |
| Euro Training (UK) Limited | Professional & scientific | 1995 |
| Eurolink Printing Limited | Manufacturing | 1990 |
| Euromat Group Limited | Financial services | 2024 |
| Euromat Limited | Construction | 2014 |
| Euromin (Holdings) Limited | Financial services | 2002 |
| Euromin Limited | Wholesale & retail | 1988 |
| Europe Properties Ltd | Information & communication | 2020 |
| European Medicines Limited | Administrative & support | 2012 |
| Eurostrategy Consultants Limited | Professional & scientific | 1997 |
| Eurotec Industries Limited | Manufacturing | 1999 |
| Euroteknika UK Limited | Wholesale & retail | 2012 |
| EV Quality Consultants Limited | Professional & scientific | 2026 |
| EVA International Security Ltd | Administrative & support | 2022 |
| Eva.Ai Limited | Professional & scientific | 2013 |
| Evans & Evans Property Limited | Real estate | 2017 |
| Evely Swan Limited | Financial services | 2024 |
| Evelyn Road Property Management Ltd | Real estate | 2011 |
| Evenflow Developments Limited | Construction | 2015 |
| Event Floor Limited | Professional & scientific | 1998 |
| Event Stock Limited | Extraterritorial | 2015 |
| Everfaith Films Limited | Other services | 2026 |
| Evermade Limited | Manufacturing | 2013 |
| Eversley SPV Ltd | Real estate | 2025 |
| Everyday Living Therapy Ltd | Health & social care | 2018 |
| Eviebea Limited | Real estate | 2021 |
| Eviga Eco Limited | Wholesale & retail | 2020 |
| Evlogia Ltd | Professional & scientific | 2019 |
| Evolution Accounting Limited | Professional & scientific | 2017 |
| Evolution Inc. Ltd | Real estate | 2019 |
| Evolution Risk & Compliance Limited | Administrative & support | 2025 |
| Evolve Creative Digital Ltd | Information & communication | 2015 |
| Evolve Physiotherapy Ltd | Health & social care | 2021 |
| EVOLVE2EXCEL Ltd | Information & communication | 2025 |
| Evos Group Ltd | Financial services | 2022 |
| Exact Accounts Limited | Professional & scientific | 2019 |
| Exact Sussex Ltd | Real estate | 2026 |
| Exallt Ltd | Construction | 2021 |
| Excel Building Surveying Ltd | Professional & scientific | 2018 |
| Excel Construction (Sussex) Limited | Construction | 2013 |
| Excel Developments and Management Ltd | Construction | 2025 |
| Excetera Limited | Real estate | 2002 |
| Executive Aviation Consultancy Limited | Manufacturing | 2011 |
| Executor Hub Ltd | Public administration | 2024 |
| Exegol Limited | Real estate | 2024 |
| Exeter House Investments LLP | | 2023 |
| Exit 23 Limited | Arts & recreation | 2014 |
| Exmansworthy Management Co. Limited | Households | 2006 |
| Exogeneity Limited | Professional & scientific | 2022 |