| E.M.H. Limited | Benfleet | 2004 |
| E.M.Lander,Limited | Sutton Coldfield | 1916 |
| E.Manton EOT Limited | Birmingham | 2022 |
| E.N's Smutt & Gutt Rosenfors Limited | London | 2025 |
| E.On (Cross-Border) Pension Trustees Limited | Nottingham | 1998 |
| E.On Energy GAS (Eastern) Limited | Nottingham | 2000 |
| E.On IT UK Limited | Nottingham | 2005 |
| E.On UK Industrial Shipping Limited | Nottingham | 1997 |
| E.On UK Property Services Limited | Nottingham | 1999 |
| E.On UK PS Limited | Nottingham | 2008 |
| E.P.L Travel Ltd | Bedford | 2013 |
| E.S.S.P.A. Limited | Bexhill-On-Sea | 1997 |
| E.Seymour & SON Limited | Sutton Coldfield | 1935 |
| E.T.A. -Exclusive Travel Advisor Ltd | King'S Lynn | 2011 |
| E.T.Green Limited | | 1997 |
| E.U. Fire & Security Ltd | Newbury | 2003 |
| E.V.T.S. Ltd | Lancashire | 2001 |
| E.W. Beard (Land) Limited | Swindon | 1947 |
| E.Y.E. Lifting Limited | Ipswich | 2005 |
| E.Y.E. Sport & Design (UK) Limited | Telford | 2021 |
| E14 Media Limited | Caterham | 2009 |
| E15BD Properties Ltd | Hove | 2025 |
| E2 Property Investment Corporation Limited | Wakefield | 2020 |
| E24(UK) Ltd | London | 2015 |
| E25 Nutrition Co., Ltd | West Midlands, England | 2025 |
| E2E Accounting Limited | Coventry | 2025 |
| E2I Limited | Maidenhead | 1999 |
| E360 Recruiting Ltd | Hitchin | 2022 |
| E3SS Limited | Manchester | 2007 |
| E6 LDN Limited | East Ham | 2017 |
| EA & EA Naughton Limited | Crowthorne | 2023 |
| EA Business Projects 2 Limited | Norwich | 2024 |
| EA Business Projects 3 Limited | Norwich | 2024 |
| EA Elite Services Ltd | Bristol | 2014 |
| EA Financials Ltd | London | 2022 |
| EA Mobility Limited | King'S Lynn | 2019 |
| EAB Homes & Developments Ltd | Beaconsfield | 2017 |
| EAC Consultancy Ltd | Liverpool | 2025 |
| Each & Everyone Ltd | London | 2026 |
| Eachcar Limited | London | 2021 |
| EAD17 Ltd | Belfast | 2017 |
| EAG B Ltd | Manchester | 2023 |
| Eager Readers Ltd | Cheltenham | 2023 |
| Eagle 2020 Limited | Crowthorne | 2020 |
| Eagle 456 Limited | Chelmsford | 2000 |
| Eagle 95 Electrician Ltd | Bicester | 2018 |
| Eagle and Child Ltd | Leyland | 2019 |
| Eagle Crest Waves Ltd | London | 2026 |
| Eagle Electrical Services (UK) Limited | Cannock | 2003 |
| Eagle EYE Cellular Pathology Diagnostics Limited | Llandudno | 2015 |
| Eagle EYE Solutions (North) Limited | London | 1999 |
| Eagle Investment Management Ltd | Croydon | 2016 |
| Eagle Motorcycles Limited | Gloucester | 2008 |
| Eagle Security Maintenance Limited | Sholden, Deal | 1997 |
| Eagle Star Group Services Limited | Swindon | 1989 |
| Eagle Travel Limited | Bedford | 2005 |
| Eagle View Technologies Limited | Glasgow | 2020 |
| Eagle's Wing Ltd | Orpington | 2009 |
| Eaglenest Faith Ltd | Doncaster | 2010 |
| Eagles & Pigeons Ltd | Birmingham | 2024 |
| Eagles Finance Ltd | London | 2004 |
| Eagles Holdings Ltd | London | 2007 |
| Eagles Hospitality Limited | Norwich | 2026 |
| Eagles Nurture Limited | Rochford | 2024 |
| Eaglestone Petroleum Limited | Leigh-On-Sea | 1981 |
| Eaglesure Insurance Services Limited | Billericay | 2019 |
| Eaglewine Limited | | 1989 |
| EAH Commercial Limited | Gloucester, | 2014 |
| EAH Finishing Limited | Gloucester, | 2014 |
| EAH Residential Limited | Gloucester, | 2014 |
| Ealing Mall Property Company Limited(The) | London | 1980 |
| Ealing Riding School Limited | London | 2014 |
| Ealprize Enterprises Ltd | Northampton | 2022 |
| EAM One Ltd. | Manchester | 2024 |
| Eames Events Limited | Oxford | 2010 |
| Eamom Tech Co., Ltd | Beckenham | 2023 |
| Eamonn Mcgurk Limited | Gloucester | 2014 |
| Eamont Ltd | Penrith | 2019 |
| Ean's Floraldec Ltd | London | 2021 |
| Eandac Ltd | London | 2024 |
| EAR Candy Studios Limited | Windsor | 2006 |
| Eardley Freehold Limited | London | 2019 |
| Earl & Co. (Ashford) Limited | Nottingham | 1980 |
| Earl & Co. (Funeral Services) Limited | Nottingham | 1983 |
| Earl Fitzwilliams Wentworth Estates Company Limited | Bembridge | 2024 |
| Earl of Plymouth Limited | Sutton Coldfield | 1989 |
| Earl's Barton Dental Limited | Hamilton | 2014 |
| Earl's Gate Management Co Ltd | Londonderry | 2005 |
| Earle Limited | Croydon | 2000 |
| Earlford 1961 Limited | Newtownabbey | 2013 |
| Earlham Base Limited | Halesworth | 2015 |
| Earls Consulting Limited | Harrow | 2010 |
| Earlsmead Pension Fund Nominees Limited | Edgware | 1993 |
| Early Active Limited | Sutton Coldfield | 2009 |
| Early Bird Industrial & Trading Limited | London | 2019 |
| Early Birds Group Ltd | Ashford | 2018 |
| Early Days Limited | Leicester | 2008 |
| Early Detection Systems Limited | Folkestone | 2005 |
| Early Doors Productions Limited | Grays | 2020 |
| Early Hours Roadshow Ltd | Cardiff | 2014 |