| Eco Build Property Solutions Limited | Construction | 2017 |
| Eco Building Products Limited | Construction | 2015 |
| Eco Cable Recycling UK Limited | Wholesale & retail | 2024 |
| Eco Carbon Traders Limited | Professional & scientific | 2013 |
| Eco ELA Limited | Wholesale & retail | 2021 |
| Eco Electric Car Organisation Limited | Information & communication | 2020 |
| Eco External Cleaning Solutions Ltd | Administrative & support | 2025 |
| Eco Food Service Ltd | Wholesale & retail | 2017 |
| Eco MED Ltd | Manufacturing | 2026 |
| Eco Vision Build Ltd | Construction | 2025 |
| Eco Warmth Ltd | Other services | 2017 |
| Eco-Cycle IT Recycling Ltd | Water & waste | 2025 |
| Ecodynamic Plant and Equipment Hire Limited | Professional & scientific | 2013 |
| Ecoflex Solutions Ltd | Administrative & support | 2022 |
| Ecom Spark Ltd | Wholesale & retail | 2026 |
| Ecombrandpartners@Outlook.Com Limited | Wholesale & retail | 2026 |
| Ecommercebyfurqan Limited | Wholesale & retail | 2023 |
| Ecoposte-Uk Limited | Professional & scientific | 2024 |
| Ecos Computer Services Ltd | Information & communication | 2001 |
| Ecosolarpanels Ltd | Wholesale & retail | 2023 |
| Ecovigour Limited | Construction | 2007 |
| ED Veterinary Locum Ltd | Professional & scientific | 2019 |
| EDB (UK) Limited | Construction | 2014 |
| EDC Resources International Limited | Information & communication | 2016 |
| EDD Property Limited | Real estate | 2025 |
| Eden Aesthetics & Holistic Health Ltd | Other services | 2024 |
| Edens Global Limited | Wholesale & retail | 2025 |
| Ederine Law Limited | Professional & scientific | 2025 |
| Edge Cleaning Equipment (South Wales) Limited | Manufacturing | 2007 |
| Edge to Edge Paving Specialists Ltd | Construction | 2012 |
| Edgeo Ltd | Manufacturing | 2015 |
| Edgmond Group Limited | Professional & scientific | 1999 |
| Edgmond Wines Ltd | Hospitality | 2013 |
| EDI Holdings Limited | Financial services | 2016 |
| Ediltex Ltd | Wholesale & retail | 2012 |
| Edit Property Limited | Real estate | 2021 |
| Edlogan Limited | Financial services | 2024 |
| Edmund Valve COMPANY(1965) Ltd | Wholesale & retail | 2001 |
| Edsyvie Ltd | Wholesale & retail | 2021 |
| Eduard MGM Group Ltd | Construction | 2025 |
| Eduardo Miguel Bello Ltd | Arts & recreation | 2023 |
| Educam Tuition Ltd | Education | 2025 |
| Education Supply Pool Ltd | Administrative & support | 2013 |
| Edward Barnes Cardiology Limited | Health & social care | 2020 |
| Edward Fletcher Limited | Administrative & support | 2008 |
| Edward Fury Limited | Professional & scientific | 2017 |
| Edward VII Management Company Limited | Households | 1999 |
| Edwards Associates Limited | Health & social care | 2009 |
| Edwards Construction (Bristol) Limited | Construction | 2019 |
| Edwards Electrical Solutions (Newport) Limited | Manufacturing | 2017 |
| Edwards Roofing (Newport) Limited | Construction | 2012 |
| Edwardscare Ltd | Health & social care | 2024 |
| EEK Rentals Limited | Real estate | 2026 |
| Efes Barber New Port Ltd | Hospitality | 2020 |
| Effective Communication Limited | Administrative & support | 2004 |
| Efficient LED Solutions UK Limited | Construction | 2012 |
| Efitex Ltd | Health & social care | 2020 |
| EGM Blades Limited | Professional & scientific | 2025 |
| Egypt Reach Freehold Limited | Households | 2020 |
| Ehailer Limited | Professional & scientific | 2011 |
| Ehan Developments Limited | Real estate | 2017 |
| Ehan Homes Limited | Real estate | 2025 |
| EHJ Properties Ltd | Real estate | 2024 |
| Eight One Digital Limited | Information & communication | 2019 |
| EJ Industries Limited | Financial services | 2014 |
| EJ7 Promotions Limited | Professional & scientific | 2016 |
| EJ7 Properties Limited | Real estate | 2018 |
| EJB Intelligent Automation Ltd | Information & communication | 2024 |
| Ejgriffiths Ltd | Transport & logistics | 2025 |
| EK Financial Services Limited | Financial services | 2024 |
| EKJ (Management Services) Ltd | Administrative & support | 2018 |
| EKO Bakery Ltd | Manufacturing | 2023 |
| EL & C Home Ltd | Real estate | 2017 |
| EL Davis & Associates Ltd | Public administration | 2024 |
| Elana Limited | Real estate | 2015 |
| Elbro Properties Ltd | Real estate | 2022 |
| Eldeesee Limited | Real estate | 2013 |
| Elderbridge Limited | Financial services | 2014 |
| Eldona Limited | Real estate | 2017 |
| Eldridges Legal Services Limited | Professional & scientific | 2020 |
| Electrical Power Engineering Limited | Professional & scientific | 2024 |
| Electrical Solution (IOW) Ltd | Construction | 2015 |
| Electrobit Limited | Other services | 2017 |
| Electroceuticals UK Limited | Wholesale & retail | 2024 |
| Electrodesign Services Ltd | Professional & scientific | 2024 |
| Electron Services (Glos) Ltd | Manufacturing | 2006 |
| Electrotechnic Ltd | Other services | 2023 |
| Elegance Barbers Ltd | Other services | 2019 |
| Elegant Additions Home Accessories Limited | Real estate | 1998 |
| Elembee Scientific Limited | Administrative & support | 2024 |
| Elevate Product Management Ltd | Information & communication | 2024 |
| Elevate Properties Ltd | Real estate | 2025 |
| Elevation Football Coaching Ltd | Arts & recreation | 2024 |
| ELF Property Investments Limited | Real estate | 2021 |
| Elfwyn Ltd | Health & social care | 2025 |
| ELI Training Ltd | Education | 2018 |
| Eli-Uppin Limited | Health & social care | 2025 |
| Eliot Solutions Ltd | Financial services | 2025 |
| Elira Ltd | Administrative & support | 2025 |
| Elisora Global Ltd | Wholesale & retail | 2025 |