| Eleanor Palmer Trustee Limited | Barnet | 2015 |
| Eleanor Technical Services & Trading Co., Ltd | Beckenham | 2023 |
| Elearnity Limited | Cirencester | 2016 |
| Elebyte Ltd | London | 2024 |
| Elec Solar Ltd | Barnet | 2018 |
| Elec-Trick Limited | Warminster | 2005 |
| Elecgadget. Co., Ltd | Beckenham | 2018 |
| Eleco Dowding & Mills Limited | Larbert | 1992 |
| Eleconline Limited | Skipton | 2009 |
| Elect Aviation Ltd | Leeds | 2023 |
| Elect International Ltd | Leeds | 2024 |
| Elect Jets Ltd | Leeds | 2023 |
| Elect Real Estate Ltd | Leeds | 2023 |
| Electech Designs Limited | Coventry | 2015 |
| Election Ltd | Harrogate | 2012 |
| Elective Affinities Ltd | London | 2025 |
| Electra Chemicals Limited | Kent | 1997 |
| Electra Polymers & Chemicals Limited | Kent | 1984 |
| Electraders Limited | Glasgow | 2014 |
| Electraguard UK Ltd | Eversley | 2023 |
| Electrak Holdings Limited | Birmingham | 2005 |
| Electrak International Limited | Birmingham | 1976 |
| Electrak Limited | Birmingham | 1999 |
| Electrak Overseas Limited | Birmingham | 1981 |
| Electrasure Ltd | Glasgow | 2021 |
| Electri-Click Limited | Eastleigh | 2017 |
| Electric Neil Ltd | Gosport | 2022 |
| Electric Blanket Supermarket Limited | Pontefract | 2010 |
| Electric Car Finance Limited | Bournemouth | 2023 |
| Electric Car Leasing Limited | Halifax | 2016 |
| Electric Car Store Limited | Aberdeen | 1987 |
| Electric Cargo Bikes Limited | Christchurch | 2017 |
| Electric Cars London Limited | South Croydon | 2021 |
| Electric Center Limited | Knutsford | 1976 |
| Electric Dreams Limited | Kent | 2006 |
| Electric Drive Vehicles Limited | Poole | 2007 |
| Electric Estates Limited | Edgware | 2007 |
| Electric Keys Ltd | Norwich | 2024 |
| Electric Life Limited | Birmingham | 2022 |
| Electric Motor Cars Limited | Cambridge | 2005 |
| Electric Motor Rewinds Limited | Wellingborough | 2006 |
| Electric Motor Sales Limited | Wellingborough | 2006 |
| Electric Motor Services Limited | Wellingborough | 2006 |
| Electric Motor Technology Limited | London | 2022 |
| Electric Motor Vehicles Limited | Cambridge | 2006 |
| Electric P. Invest Limited | London | 2020 |
| Electric P. Limited | London | 2020 |
| Electric Powertrain Limited | Knaresborough | 2022 |
| Electric Services Direct Limited | Ferryhill | 2025 |
| Electric Shark Ltd | Northampton | 2015 |
| Electric Summer Waves Ltd | London | 2025 |
| Electric Van Leasing Limited | Halifax | 2016 |
| Electric ZOO Limited | Coventry | 2018 |
| ELECTRIC8 Ltd | Manchester | 2023 |
| Electrica UK Ltd | Colchester | 2007 |
| Electrical & Electronic System Installations Limited | Stonehouse | 2004 |
| Electrical Depot Limited | 3 Dorset Rise | 2010 |
| Electrical Design and Installations Limited | Hertfordshire | 1986 |
| Electrical Installations North West Limited | Blackpool | 2009 |
| Electrical Renewable Services Ltd | Barnsley | 2021 |
| Electrical Safety (London) Ltd. | Norwich | 2003 |
| Electrical Safety (Midlands) Limited | Norwich | 2002 |
| Electrical Safety (Northern) Ltd. | Norwich | 2003 |
| Electrical Shop Ltd | Wigan | 2020 |
| Electrical Trades Supply Limited | Newbury | 1977 |
| Electricenter Limited | Knutsford | 1980 |
| Electricity North West Number 1 Company Limited | Stockport | 2006 |
| Electricity Smart Ltd | London | 2017 |
| Electricworks Limited | London | 2012 |
| Electricworks N7 Limited | London | 2015 |
| Electrified Marketing Limited | Chesterfield | 2016 |
| Electrify Limited | Harrogate | 2012 |
| Electrifysecurity Ltd | Coventry | 2024 |
| Electriserve London Ltd | Brentwood | 2023 |
| Electrivolt Limited | Sheffield | 2022 |
| Electro Aerospace Limited | Halesowen | 2010 |
| Electro Avionics Ltd | Cardigan | 2013 |
| Electro Business Trading Company Limited | Cardiff | 2018 |
| Electro Controls Limited | St. Neots | 1980 |
| Electro Dynamic Labs Ltd | London | 2022 |
| Electro Mate Limited | Potters Bar | 2012 |
| Electro-Cal Limited | Carlisle | 2021 |
| Electro-Medical Limited | Mitcham | 1999 |
| Electroculture Limited | Ware | 2024 |
| Electroheat Limited | Orpington | 2019 |
| Electrolysis Blemish Removal Limited | London | 2022 |
| Electrolysis Expert Limited | London | 2011 |
| Electrolysis Hair Removal Limited | London | 2021 |
| Electromesh Ltd | Holywell | 2003 |
| Electron Alpha Consulting Limited | Newcastle Upon Tyne | 2023 |
| Electronic Drives & Controls Limited | Erskine | 1997 |
| Electronic Mail Ltd | Harrogate | 2012 |
| Electronic Medical Solutions Ltd | Rickmansworth | 2011 |
| Electronic Technicians Holdings Limited | Wimborne | 2019 |
| Electronics Outlet Ltd | London | 2015 |
| Electrophysical Technologies Ltd | Chesterfield | 2021 |
| Electropropulsion Ltd | Hampshire | 2006 |
| Electrotex Ltd | Cleethorpes | 2020 |
| Electrovo Ltd | Birmingham | 2016 |
| Elegance Natural Skin Care Limited | Whitchurch | 1999 |