| Eastminster Properties Limited | Real estate | 1997 |
| Eastmount Acquisitions 02 Ltd | Other services | 2021 |
| Eastmount Capital Ltd | Financial services | 2020 |
| Eastmount Capital Partners LLP | | 2020 |
| Easturn Ltd | Wholesale & retail | 2022 |
| Eastwest (EW) Holdings Ltd | Real estate | 2024 |
| Easy Axess Limited | Transport & logistics | 2024 |
| Easy Connect ME Limited | Extraterritorial | 2011 |
| Easy Office Help Limited | Construction | 2025 |
| Easy Rental Solutions Limited | Information & communication | 2019 |
| Easybeams Ltd. | Professional & scientific | 2014 |
| Easycounting Limited | Information & communication | 1998 |
| Easydrill LP | | 2020 |
| Easypay Services Limited | Administrative & support | 2005 |
| Easyplan Design Limited | Professional & scientific | 2008 |
| Easyway Taxi Ltd | Transport & logistics | 2025 |
| EAT Açaí Ltd | Hospitality | 2025 |
| EAT2GO Limited | Hospitality | 2015 |
| Eating Mindset Ltd | Health & social care | 2015 |
| Eaton Mansions (Westminster) Limited | Households | 1978 |
| Eaton Square Consulting Limited | Professional & scientific | 2026 |
| Eazy Connections Ltd | Professional & scientific | 2024 |
| Ebberns Kitchen Centre Limited | Wholesale & retail | 2009 |
| Ebberns Tile Centre Limited | Wholesale & retail | 2008 |
| Ebbshire Limited | Households | 1996 |
| Ebenezer 22 Limited | Transport & logistics | 2024 |
| Ebill Limited | Extraterritorial | 2011 |
| EBK Watford Ltd | Other services | 2025 |
| EBS IT Solutions Ltd | Information & communication | 2015 |
| Ebsl Limited | Real estate | 2026 |
| Ebury Limited | Manufacturing | 2017 |
| ECA Property Investment Ltd | Real estate | 2021 |
| ECF Digital Design Ltd | Professional & scientific | 2025 |
| ECH Colwyn Bay Limited | Health & social care | 2021 |
| Echo & Quill Ltd | Information & communication | 2025 |
| Echo Diagnostic Solutions Limited | Health & social care | 2009 |
| Echo Fume Ltd | Wholesale & retail | 2025 |
| Echo Ground Engineering Ltd | Professional & scientific | 2025 |
| Echo Infinite Ltd | Professional & scientific | 2024 |
| Echoheart Services Ltd | Health & social care | 2021 |
| ECI 12 Special Purpose Bidco Limited | Financial services | 2025 |
| ECI 12 Special Purpose Midco 1 Limited | Financial services | 2025 |
| ECI 12 Special Purpose Midco 2 Limited | Financial services | 2025 |
| ECI 12 Special Purpose Topco Limited | Financial services | 2025 |
| Eclipse Financing Limited | Administrative & support | 2021 |
| Eclipse Midco Limited | Administrative & support | 2021 |
| Eclipse Shutter Solutions Limited | Wholesale & retail | 2010 |
| Eclipse Topco Limited | Financial services | 2022 |
| Ecmd Consulting Ltd | Professional & scientific | 2023 |
| Eco 10 Limited | Extraterritorial | 2017 |
| Eco Cars Stanmore Limited | Wholesale & retail | 2022 |
| Eco Development Projects Limited | Real estate | 2016 |
| Eco Furnishings Ltd | Wholesale & retail | 2023 |
| Eco Habitat Ltd | Real estate | 2024 |
| Eco Leaf Products Limited | Wholesale & retail | 2022 |
| Eco Porcelainic Microcement Ltd | Construction | 2018 |
| Eco Voltage Solutions Ltd | Wholesale & retail | 2023 |
| Eco Waste Wizards Ltd | Water & waste | 2026 |
| Eco-Built Ltd | Construction | 2009 |
| Eco-Guard Environmental Services Ltd | Administrative & support | 2026 |
| Ecoachmanager Ltd | Information & communication | 2021 |
| Ecoboxes Limited | Administrative & support | 2022 |
| Ecobruce Transport Services Ltd | Transport & logistics | 2025 |
| Ecomwizard 2.0 Limited | Wholesale & retail | 2025 |
| Economic Enterprises (Developments) Limited | Professional & scientific | 1982 |
| Ecopab Ltd | Information & communication | 2018 |
| Ecoshine Solar Limited | Construction | 2024 |
| Ecoskewers Ltd | Wholesale & retail | 2025 |
| Ecosola PVT Ltd | Administrative & support | 2012 |
| Ecoten Limited | Construction | 2010 |
| Ecoworld Plus Limited | Wholesale & retail | 2023 |
| ECS Groundwork Limited | Construction | 2005 |
| ECS Technical Limited | Information & communication | 2014 |
| ED Carleton UK Ltd | Real estate | 2021 |
| ED Manneh Ltd | Wholesale & retail | 2019 |
| ED Property Management Limited | Real estate | 2022 |
| ED Westwood Projects and Programmes Ltd | Professional & scientific | 2024 |
| Eddon Ltd | Health & social care | 2021 |
| Eden Elements Limited | Wholesale & retail | 2017 |
| Eden Fast Food Ltd | Hospitality | 2026 |
| Eden Fitness Limited | Health & social care | 2003 |
| Eden Grove Limited | Real estate | 2018 |
| Eden Haven Properties Ltd | Real estate | 2024 |
| Eden Outsource Limited | Administrative & support | 2002 |
| Eden Outsourcing Limited | Information & communication | 2004 |
| Eden Personal Training Limited | Health & social care | 2015 |
| Eden RAW Limited | Arts & recreation | 2019 |
| Edenred Capital Partners Limited | Professional & scientific | 2014 |
| Edenshire Jewellery & Watches Ltd. | Wholesale & retail | 2010 |
| Edenway Contractors Limited | Construction | 1973 |
| Edgbaston Consultancy Limited | Professional & scientific | 2019 |
| Edge Electronics Limited | Manufacturing | 2005 |
| Edge Fixers Limited | Construction | 2020 |
| Edgentic Ltd | Information & communication | 2015 |
| Edgware Kumon Centre Ltd | Real estate | 2024 |
| Edilson Construction Services Ltd | Construction | 2021 |
| Editorialist Limited | Information & communication | 2013 |
| Edmark Developments Limited | Real estate | 2011 |
| Edmonstone Ltd | Information & communication | 2026 |
| Edobra Limited | Health & social care | 2021 |