| Ethical Specials Limited | Carlisle | 2009 |
| Ethical Training Company Limited | Cheltenham | 2002 |
| Ethical Wealth Management Limited | Cheltenham | 2002 |
| Ethicalhealth Innovations Ltd | London | 2025 |
| Ethics Engines Ltd | London | 2025 |
| Ethigen Scotland Limited | East Kilbride | 2010 |
| Ethiqa Limited | Holmfirth | 2014 |
| Ethnicity Clothing Limited | London | 2023 |
| Ethnique Limited | Glasgow | 1990 |
| Ethos Candles Limited | Wiltshire | 1970 |
| Ethos Facilities (Scotland) Ltd | Greenock | 2016 |
| Ethos Industrial Ltd | Chepstow | 2024 |
| Ethos Limited | Cheltenham | 1999 |
| Etienne Lacroix UK Limited | Trusley | 2019 |
| Etigraphicus Ltd | Bournemouth | 2019 |
| Etiopisk Kultur Investment Limited | London | 2021 |
| Etiopisk Kultur Limited | London | 2021 |
| Etiqus Ltd | Newcastle | 2014 |
| Etiti Invest Limited | London | 2021 |
| ETL Group Limited | Bolton | 2020 |
| ETL Management Limited | Derby | 2017 |
| ETL Medical Limited | Sale | 2012 |
| Etoh Ltd | Peterborough | 2014 |
| Eton Online Ventures Limited | Windsor | 2013 |
| Eton Park Homes Limited | Stockport | 2014 |
| Eton Riverside Management Limited | Windsor | 1999 |
| Eton Thameside Management Company Limited | Croydon | 2013 |
| Eton Wells Ltd | Slough | 2020 |
| ETP Law Limited | Caerphilly | 2023 |
| Etradis Corporation Limited | Halifax | 1992 |
| Etravel Concierge Limited | Ilford | 2025 |
| Etrust Limited | | 1993 |
| ETS Dumont Ltd | Dover | 2022 |
| Ettaholdings Ltd | Aylesbury | 2023 |
| Ettore Limited | London | 2023 |
| Etwall Estates Limited | Broadway | 2003 |
| Etyre Shop Limited | Liverpool | 2022 |
| EU Contact AG Ltd | London | 2013 |
| EU E-Commerce Association Ltd | Manchester | 2016 |
| EU FM Ltd | Harrogate | 2015 |
| EU RE Consultants UK Ltd | Kenilworth | 2023 |
| Eu-China Trade Co., Ltd. | London | 2015 |
| Eu-Ro Top Ltd | Dagenham | 2008 |
| Euan Brown Ltd. | Paisley | 2010 |
| EUC Cultur Club Invest Ltd | Dover | 2011 |
| EUC Forza Invest Ltd | Dover | 2011 |
| EUC Forza Ltd | Dover | 2011 |
| Eucalyptus Waves Ltd | London | 2021 |
| Euchemy Industry Co., Limited | London | 2011 |
| Eucv A.G.P.O Europe Ltd | Dover | 2009 |
| Eucv A.G.P.O Europe UK Ltd | Dover | 2009 |
| Eucv ALL Work Group Ltd | Dover | 2009 |
| Eucv ALL Work Group UK Ltd | Dover | 2009 |
| Eucv Consultance & Services Ltd | Dover | 2009 |
| Eucv Delta Management Ltd | London | 2008 |
| Eucv Delta Management UK Ltd | London | 2008 |
| Eucv DGM Racing Ltd | Dover | 2009 |
| Eucv DGM Racing UK Ltd | Dover | 2009 |
| Eucv DVA Construct Invest Ltd | Dover | 2021 |
| Eucv DVA Construct Ltd | Dover | 2021 |
| Eucv G&G INT Services UK Ltd | London | 2008 |
| Eucv Magic Sofa Ltd | Dover | 2008 |
| Eucv Magic Sofa UK Ltd | Dover | 2008 |
| Eucv Pigs Brothers Ltd | Dover | 2009 |
| Eucv Pigs Brothers UK Ltd | Dover | 2009 |
| Eucv PMC Home Design Ltd | Dover | 2008 |
| Eucv PMC Home Design UK Ltd | Dover | 2008 |
| Euex Limited | Dunstable | 2002 |
| Euka Limited | Dyfed | 2007 |
| Euken Albert Palmer Limited | Dudley | 2021 |
| Eukero Controls Limited | Rushden | 1994 |
| Eukula UK Limited | Stratford Upon Avon | 2015 |
| Eumode Limited | London | 2023 |
| Euphemia Millicent Scott Limited | London | 2022 |
| Euphoria Homeuk Ltd | Coventry | 2020 |
| Euphrasie Management Ltd | Kenilworth | 2025 |
| Eurac Dudley Limited | Poole | 1973 |
| Eurasia Consult Limited | London | 2012 |
| Eurasia Juyuan Blackstone Group Rongtou Economic and Trade Co., Ltd. | London | 2024 |
| Eurasian Frontier Financial Capital Limited | Beckenham | 2023 |
| Eureka ! (Euro) Limited | Beds. | 1995 |
| Eureka Capital Limited | London | 2011 |
| Eureka Holdings Ltd | Coventry | 2019 |
| Eureka Securitisation Limited | London | 1994 |
| Eureka Turmeric Co Limited | Ledbury | 2020 |
| Eurekas Roti Limited | Gravesend | 2024 |
| Eurest Airport Services Limited | Rubery Birmingham | 1977 |
| Eurest Offshore Support Services Limited | Rubery | 1987 |
| Eurest UK Limited | Rubery Birmingham | 1973 |
| Euro Accountants Partners PLC | Dover | 2010 |
| Euro Aggregates Limited | Belfast | 1998 |
| Euro Asia Youth Association | London | 2015 |
| Euro Calibrations Limited | South Molton | 2010 |
| Euro Capital Zone Ltd | London | 2016 |
| Euro Centre Management Company Limited | Whitstable | 2008 |
| Euro Corporation Ltd | Ilford | 2024 |
| Euro Diesel Engine Parts Ltd | Waltham Abbey | 2012 |
| Euro E-Service Ltd | St Neots | 2015 |
| Euro Engines UK Ltd | Maldon | 2021 |
| Euro Equity Limited | London | 2014 |