| Eagle Sales Limited | Wholesale & retail | 2012 |
| Eagle Speedster Limited | Wholesale & retail | 2011 |
| Eaglecliff Group Limited | Administrative & support | 2024 |
| Eaglegb Limited | Wholesale & retail | 2025 |
| Eaglepoint Capital LLP | | 2025 |
| Eaglepoint Capital Management Ltd | Professional & scientific | 2022 |
| Eaglesfield Equestrian Events Limited | Hospitality | 2002 |
| Eaglesfield Equestrian Holdings Limited | Financial services | 2009 |
| Earlswood Creative Limited | Administrative & support | 2021 |
| Earlyservices Ltd | Extraterritorial | 1999 |
| Earnshaw Group Ltd | Professional & scientific | 2020 |
| Easi 2 Drive Limited | Education | 2020 |
| Easi Recruit Limited | Extraterritorial | 2015 |
| Easi Recruitment Limited | Administrative & support | 2013 |
| East Coast Marinas Limited | Arts & recreation | 1993 |
| East Sussex Properties Limited | Real estate | 2006 |
| East Sussex Property Centre Limited | Real estate | 2020 |
| Eastgate Trading Limited | Professional & scientific | 2016 |
| Easton Environmental Consultants Limited | Professional & scientific | 2002 |
| Easton Plumbing Ltd | Construction | 2025 |
| Eastwood Capital Ltd | Real estate | 2026 |
| Easy Accommodation Ltd | Hospitality | 2020 |
| Easy Fit Glass Ltd | Construction | 2005 |
| Easy Soultions Ltd | Construction | 2025 |
| Easytree Limited | Households | 1983 |
| EAT Drink Live Well Clinic LLP | | 2019 |
| EAT Drink Live Well Limited | Administrative & support | 2015 |
| EAT for Energy Ltd | Hospitality | 2012 |
| EAT N Mess Ltd | Manufacturing | 2025 |
| EBS Barbers Ltd | Other services | 2025 |
| EC Canterbury Limited | Hospitality | 2024 |
| EC Insurance Holdings Limited | Financial services | 2008 |
| EC Insurance Services Limited | Financial services | 1980 |
| ECA Affinity Services Limited | Professional & scientific | 2004 |
| ECA Certification Limited | Extraterritorial | 2007 |
| Ecce Media Limited | Information & communication | 2000 |
| Echelle Limited | Information & communication | 2025 |
| Echo 3 Nine Property Limited | Real estate | 2023 |
| Echobay Ltd | Manufacturing | 2019 |
| Eclipse Lubricants Limited | Wholesale & retail | 2012 |
| Ecms Services Ltd | Administrative & support | 2007 |
| Eco Enviro Services Ltd | Administrative & support | 2026 |
| Eco Genus Ltd | Construction | 2023 |
| Eco Pro Commercial Limited | Professional & scientific | 2009 |
| Eco Servizi Europa Ltd | Wholesale & retail | 2020 |
| Eco-Gro Limited | Agriculture & fishing | 2019 |
| ECO1 Construction Limited | Construction | 2026 |
| Ecology Expo Ltd | Professional & scientific | 2026 |
| Ecotec Renewables Ltd | Construction | 2014 |
| ED Media Ents Ltd | Arts & recreation | 2012 |
| Edalium Communications Limited | Administrative & support | 2012 |
| Eden Park Cars Limited | Wholesale & retail | 1970 |
| Edenderry Court Management Committee Limited | Households | 1982 |
| Edenhurst (Oak Hill Road Sevenoaks) Management Company Limited | Real estate | 1986 |
| Edenmark Communications Ltd | Information & communication | 2016 |
| Edgar's Houses Ltd | Real estate | 2017 |
| Edutherapy LLP | | 2005 |
| EEP Advisers Limited | Financial services | 1998 |
| EEP Consulting Services Ltd | Professional & scientific | 2022 |
| EF Fraser Limited | Real estate | 2022 |
| Efsi Group Ltd | Professional & scientific | 2018 |
| EFX Performance (UK) Limited | Wholesale & retail | 1991 |
| Egan Property Consultants Ltd | Construction | 2024 |
| EGG Bridge Communications Limited | Professional & scientific | 2025 |
| Eggbridge Advisory Limited | Professional & scientific | 2025 |
| Egidos Limited | Construction | 2016 |
| Eight Mile Solutions Ltd | Professional & scientific | 2020 |
| EJ Bailey Creative Limited | Professional & scientific | 2025 |
| EJ Mason Consulting Limited | Professional & scientific | 2019 |
| EJC Acquisitions Ltd | Financial services | 2023 |
| EJC Property Management Ltd | Real estate | 2024 |
| Ejpm Limited | Real estate | 2003 |
| EJS Healthcare Ltd | Health & social care | 2020 |
| EK Valeting and Detailing Ltd | Administrative & support | 2025 |
| EKA Property Group Ltd | Construction | 2017 |
| EKC Property Ltd | Real estate | 2025 |
| Ekdeen Ltd | Hospitality | 2024 |
| EL Casa Property Co.Limited | Real estate | 1936 |
| EL Lift Services Ltd | Construction | 2026 |
| EL Water Services Ltd | Administrative & support | 2026 |
| Elan House Management Company Limited | Households | 2005 |
| Elan Savont LLP | | 2026 |
| Eland Estates Limited | Construction | 1973 |
| Elasic Properties Ltd | Real estate | 2025 |
| Electrical Contractors Association Limited(The) | Other services | 1916 |
| Elegance Online Limited | Wholesale & retail | 2024 |
| Elements VFX Ltd | Information & communication | 2011 |
| Elevate Wellbeing Ltd | Information & communication | 2014 |
| Elevator Solutions Limited | Construction | 2006 |
| Elexian Limited | Real estate | 2020 |
| Elite Drain & Flow Ltd | Water & waste | 2025 |
| Elite Estates & Realty Ltd | Real estate | 2025 |
| Elite Finance Services Ltd | Financial services | 2024 |
| Elite Global Home Group Ltd | Financial services | 2025 |
| Elite Solar&Power Ltd | Construction | 2025 |
| Elite Spray & Seal Ltd | Construction | 2025 |
| Elite Student Services Limited | Education | 2013 |
| Elite.Gg Limited | Arts & recreation | 2025 |
| Elizabeth MAY Studios Limited | Other services | 2018 |
| Elizabeth Moore Property Ltd | Real estate | 2016 |