| Eurocool Products Sales and Services Limited | Southampton | 2010 |
| European & Sussex Real Estates Limited | London | 2020 |
| European Solar Limited | Batley | 2015 |
| Europower Networks Limited | London | 2005 |
| Eurowind Energy Limited | Edinburgh | 2019 |
| Euston Biogas Limited | Wellingborough | 2014 |
| EV & Green Ltd | Nottingham | 2008 |
| EV Charge Masters Ltd | London | 2023 |
| EV Charging Hub Ltd | London | 2024 |
| EV DOT Energy Ltd | London | 2018 |
| EV for Schools Limited | London | 2024 |
| EV Future Solutions Ltd | Gloucester | 2020 |
| EV NRG Ltd | Taunton | 2019 |
| EV Plus Limited | Wirral | 2020 |
| EV Power Point Limited | Redditch | 2019 |
| EV Smart (UK) Ltd | Chester Le Street | 2020 |
| EV Total Charge Limited | Rochester | 2021 |
| EV Watts Ltd | London | 2025 |
| Evacado.Co.Uk Ltd | Grimsby | 2022 |
| Evanachan Hydro Limited | Tighnabruaich | 2013 |
| Evanair Limited | London | 2003 |
| Evans Electrical Services (Midland) Ltd | Hinckley | 2015 |
| Evapolar (UK) Ltd | London | 2019 |
| Evcco Ltd | Glasgow | 2021 |
| Eveley Solar Farm Limited | Exeter | 2013 |
| Evenair Limited | Marlow | 2014 |
| Evenergi UK Ltd | London | 2017 |
| Event Electrical Ltd | Eastleigh | 2010 |
| Everay Renewables (NI) Limited | Belfast | 2026 |
| Evercool UK Limited | Sheffield | 2008 |
| Evercreech Biogas Investco Limited | Stokesley | 2019 |
| Evercreech Renewable Energy Limited | Wellingborough | 2017 |
| Everdyn Energy Ltd | Cambridge | 2025 |
| Everest Air Conditioning Limited | Bolton | 2001 |
| Evergreen Air Conditioning Building Services Limited | Billericay | 2020 |
| Evergreen Biogas SM Ltd | Omagh | 2014 |
| Evergreen Natural Energy Ltd | Omagh | 2011 |
| Eversolar Limited | Osterley | 2017 |
| Everson Electrical Services Ltd | Gravesend | 2017 |
| Everun Engineering Ltd | Belfast | 2019 |
| Everun Limited | Belfast | 2010 |
| Everything Kold Limited | Grays | 2022 |
| Evfix Limited | Saffron Walden | 2017 |
| Evgh Limited | Gloucester | 2010 |
| EVI Services Ltd | London | 2026 |
| Evie Retro Ltd | Totnes | 2024 |
| Evie Wind Energy Limited | | 2007 |
| Evincharge Ltd | Glasgow | 2025 |
| Evish Energy Ltd | Castlederg | 2011 |
| Evishagaran Wind Farm Ltd | Belfast | 2016 |
| Evocarbon Limited | Romsey | 2020 |
| Evolution Netzero Ltd | Blandford Forum | 2025 |
| Evolve Air Conditioning Limited | Waterlooville | 2015 |
| Evolve Energy Supply Limited | Lytham St. Annes | 2015 |
| Evolved Renewables Ltd | Glasgow | 2023 |
| EWC1 Campfield Limited | Nottingham | 2015 |
| EWC1 East Balsdon Limited | Nottingham | 2015 |
| EWC1 Kinetica Limited | Nottingham | 2014 |
| EWC1 Little Tinney Limited | Nottingham | 2015 |
| EWC1 Pitbeadlie Limited | Nottingham | 2014 |
| EWC2 GHF Limited | Nottingham | 2011 |
| EWC3 Berwick Limited | Nottingham | 2012 |
| EWC4 Ottringham Limited | York | 2019 |
| Ewebrae Wind Power Ltd | Brockenhurst | 2016 |
| EWH Finco Limited | London | 2015 |
| EWH Holdco Limited | London | 2015 |
| Ewindservices Ltd | London | 2025 |
| EWT WI Limited | Reading | 2015 |
| EX Access Limited | Hamilton | 2017 |
| EX Installation & Inspection Services Ltd | Brough | 2020 |
| Exact Air Ltd | Banbury | 2000 |
| Exact DCP Ltd | Ross On Wye | 2026 |
| Exact Energy Consortium Ltd | Cheddar | 2019 |
| Exact Power Ltd | Ross On Wye | 2022 |
| Exagen Beechtree Junction Limited | London | 2022 |
| Exagen Braunton Down Limited | London | 2022 |
| Exagen Brockworth Road Ltd | London | 2021 |
| Exagen Greenhead Ltd | London | 2021 |
| Exagen Highfield Ltd | London | 2021 |
| Exagen Holly Lane Ltd | London | 2021 |
| Exagen Normanton Energy Reserve Ltd | London | 2021 |
| Exagen Oak Valley Limited | London | 2022 |
| Exagen Old Wood Ltd | London | 2021 |
| Exagen SPV01 Limited | London | 2021 |
| Exagen SPV13 Limited | London | 2022 |
| Exagen SPV14 Limited | London | 2022 |
| Exagen SPV18 Limited | London | 2022 |
| Exagen SPV19 Limited | London | 2022 |
| Exagen SPV20 Limited | London | 2022 |
| Exagen Swallett Limited | London | 2021 |
| Exagen Thurcroft Interchange Limited | London | 2022 |
| Exagen Warren Wood Limited | London | 2022 |
| Exagen Willowfields Limited | London | 2021 |
| Exagen Wymeswold Ltd | London | 2021 |
| Excalibur Power Limited | London | 2020 |
| Excel District Energy Company Limited | London | 2012 |
| Excel Energy Ltd | Ferndown | 2022 |
| Excel Mech Ltd | Hillsborough | 2023 |
| Excel RAC Limited | Chester Le Street | 2011 |
| Excellence Utilities Ltd | Slough | 2019 |