| Early Check-In Ltd | Real estate | 2024 |
| Earth Drone Solutions Limited | Professional & scientific | 2025 |
| Earth to Oven Ltd | Hospitality | 2020 |
| Earthcare Technical Limited | Agriculture & fishing | 2008 |
| EAS Barbers Ltd | Other services | 2024 |
| Easier Inc Limited | Professional & scientific | 2016 |
| East Hants Garden Services Ltd | Administrative & support | 2022 |
| Eastman Electrical Ltd | Construction | 2006 |
| Easy Care Housing Ltd | Real estate | 2025 |
| Easy Kebab Ltd | Hospitality | 2020 |
| Easyaccess Care Services Ltd | Health & social care | 2023 |
| Easycut Tools and Supplies Limited | Wholesale & retail | 2020 |
| EAT the Street Ltd | Hospitality | 2013 |
| Eaton & Partners Ltd | Real estate | 2023 |
| EBT Tape and Jointing Ltd | Construction | 2023 |
| EC Planning Controls Ltd | Professional & scientific | 2026 |
| Ec&I Limited | Financial services | 2016 |
| Echo Alpha Ltd | Administrative & support | 2018 |
| Echo Lake Limited | Construction | 1997 |
| Echo Site Systems Ltd | Administrative & support | 2008 |
| Ecie Property Limited | Real estate | 2019 |
| Eclipse Lighting Limited | Professional & scientific | 2011 |
| Eclipse Property Services (Southern) Limited | Construction | 2008 |
| ECM Property Care Services Limited | Administrative & support | 2026 |
| Eco Build Design and Solutions Ltd | Construction | 2024 |
| Eco Conserve Limited | Financial services | 2023 |
| Eco Data Ltd | Information & communication | 2026 |
| Eco Grant Solutions Ltd | Administrative & support | 2020 |
| Eco Solis Capital Limited | Administrative & support | 2021 |
| Ecoads Ltd | Information & communication | 2023 |
| Ecobuildextensions Limited | Construction | 2024 |
| Ecoedge Commercial Ltd | Wholesale & retail | 2025 |
| Ecohome Boilers Limited | Manufacturing | 2018 |
| Ecologic Care and Cleaning Limited | Administrative & support | 2021 |
| Ecorporate Travel Ltd | Administrative & support | 2019 |
| ECP Residential Holdings Ltd | Real estate | 2025 |
| Ecstatic for Statics Limited | Hospitality | 2025 |
| ED Shockwave Clinics Ltd | Professional & scientific | 2023 |
| Edactive Coaching Limited | Education | 2023 |
| Eddie O Limited | Wholesale & retail | 2011 |
| Eden Management (Portsmouth) Limited | Real estate | 2018 |
| Eden Property Investments & Consultants Limited | Real estate | 2012 |
| Edenview Developments Limited | Real estate | 2002 |
| Edge Q Ltd | Professional & scientific | 2025 |
| Edgexd Limited | Information & communication | 2025 |
| EDH3 Ltd | Other services | 2023 |
| Edith Stein Catholic Academy Trust | Education | 2011 |
| EDS Luxe Properties Ltd | Real estate | 2023 |
| Edsall Estates Limited | Real estate | 2007 |
| Edvige Limited | Professional & scientific | 2025 |
| Edward Baker (Property Clearance) Limited | Administrative & support | 2024 |
| Effective Evidence LLP | | 2015 |
| Effingham Ventures Limited | Construction | 2025 |
| EG Management Limited | Construction | 2024 |
| EG Property Developments Limited | Construction | 2025 |
| EG Property Investment Solutions Limited | Real estate | 2025 |
| EG Umbrella Limited | Financial services | 2025 |
| Eggs Holdings Ltd | Financial services | 2019 |
| Eggsoft Limited | Information & communication | 2024 |
| EHD Medical Services Limited | Health & social care | 2023 |
| EHZ Accounting Services Ltd | Professional & scientific | 2024 |
| Eidos Consulting Ltd | Professional & scientific | 2016 |
| Eight Palms Holdings Ltd | Financial services | 2026 |
| Eitel Medical Services Limited | Health & social care | 2013 |
| EJ Cosmetics Ltd | Other services | 2024 |
| EJ Fire and Electrical Services Limited | Administrative & support | 2023 |
| Ejcl Ltd | Arts & recreation | 2013 |
| EJR Aesthetic Medicine Limited | Health & social care | 2024 |
| EJS Civils Limited | Construction | 2026 |
| EKO Organics Limited | Manufacturing | 2019 |
| ELD Motors Ltd | Wholesale & retail | 2023 |
| Eldraw Cleaning Services Limited | Administrative & support | 2018 |
| Elec Side Ltd | Construction | 2022 |
| Elec Tech Systems Ltd | Construction | 2021 |
| Elec Technical Limited | Construction | 2015 |
| Electric Fire Store Ltd | Wholesale & retail | 2016 |
| Electric Scooter Insider Ltd | Information & communication | 2022 |
| Electric Vehicle Centre Ltd | Wholesale & retail | 2020 |
| Electric Vehicle Services Ltd | Wholesale & retail | 2020 |
| Electrical Innovations (Derby) Ltd | Construction | 2014 |
| Electrisoul Limited | Other services | 2023 |
| Elegant Decorative Solutions Limited | Construction | 2019 |
| Elegant Healthcare Limited | Health & social care | 2025 |
| ELENA2005 Limited | Administrative & support | 2016 |
| Elevate Driving Ltd | Education | 2026 |
| Elevate Hldg Ltd | Mining & quarrying | 2024 |
| Elevate Scaffold Services Ltd | Construction | 2024 |
| Elfords Sheds (Chichester) Ltd | Manufacturing | 2015 |
| Elib UK Ltd | Information & communication | 2012 |
| Elite Automotive Southern Limited | Wholesale & retail | 2026 |
| Elite Canine Solutions Ltd | Other services | 2024 |
| Elite Cleaning Contracts Ltd | Administrative & support | 2023 |
| Elite Developments Southern Ltd | Construction | 2025 |
| Elite Mechanical Services Southern Limited | Construction | 2025 |
| Elite Media Services Group Ltd | Professional & scientific | 2024 |
| Elite Old School Coaching Ltd | Arts & recreation | 2025 |
| Elite Safety Solutions Limited | Construction | 2022 |
| Elite Sports Performance Ltd | Arts & recreation | 2025 |
| Elite Wooden Flooring Limited | Construction | 2013 |
| Elixir Health Products Ltd | Wholesale & retail | 2018 |