| Entente International Communication Limited | London | 1993 |
| Enterprise (Venture Partner) Limited | London | 1991 |
| Enterprise 2016 Limited | Rotherham | 2016 |
| Enterprise Boats Limited | Truro | 2012 |
| Enterprise Electrics (London) Limited | London | 1983 |
| Enterprise for Therapie and Coaching Ltd | Manchester | 2025 |
| Enterprise Future COF Ltd | London | 2022 |
| Enterprise House (Wales) Ltd | Abercynon | 2009 |
| Enterprise Lifecycle Management Limited | Dorking | 2012 |
| Enterprise Metals Limited | Swansea | 1981 |
| Enterprise Networks Limited | Manchester | 1997 |
| Enterprise Resource Management Limited | Milton Keynes | 1999 |
| Enterprise Seeds Ltd | Sleaford | 1997 |
| Enterprise Software Systems Limited | Nottingham | 1997 |
| Enterprise Ventures Limited | Henley In Arden | 2014 |
| Enterprise Xlpd Ltd | London | 2024 |
| Entertainment Marketing (UK) Limited | Congleton | 2011 |
| Entertainment Sound Specialists Limited | Mansfield | 2014 |
| Entertainment Technology Systems Limited | London | 1998 |
| Entesh Limited | London | 2026 |
| Entice Fragrances Ltd | Halifax | 2020 |
| Entice Limited | Reigate | 1988 |
| Entourage Effect Limited | Dagenham | 2020 |
| Entra International Ltd | London | 2006 |
| Entrepreneur Bootcamp Limited | London | 2015 |
| Entrepreneurial Trading Company Services Limited | Bordon | 1994 |
| Entrepreneurial Wealth Limited | Coventry | 2017 |
| Entreprises Good Wave Ltd | London | 2024 |
| Entropy Applied Analytics Ltd | Lincoln | 2024 |
| Entry Locksmiths Limited | Plymouth | 2025 |
| Entry Ltd | London | 2005 |
| Entside Ltd | London | 2025 |
| Enttrepreneurs Limited | Moreton In Marsh | 2013 |
| Entwistle Limited | Manchester | 1986 |
| Entyre Supplies Ltd | Saltash | 2023 |
| Envafine Limited | Batley | 1965 |
| Envar Composting (North) Limited | Ashford | 2020 |
| Envar Composting (Surrey) Limited | Ashford | 2018 |
| Envar Composting Kent Limited | Ashford | 2006 |
| Envar Composting Services Limited | Pluckley | 2000 |
| Envar Organics Limited | Pluckley | 1994 |
| Envar Recycling (Suffolk) Limited | Pluckley | 2011 |
| Envelope Productions Ltd | Beverley | 2012 |
| Envest Consultancy Limited | London | 2006 |
| Envgain Limited | Bristol | 2021 |
| Envi Architecture Limited | Leeds | 2008 |
| Envi Developments Limited | Leeds | 2007 |
| Envibra Limited | Newport Pagnell | 2011 |
| Envidia Homes (Poulton-Le-Fylde) Ltd | Poulton-Le-Fylde | 2016 |
| Envii Limited | Chesterfield | 2021 |
| Enville Brewery Limited | Stourbridge | 2007 |
| Enville Estate Management Limited | West Midlands | 2000 |
| Enviro (Latchford) Limited | Rochdale | 1985 |
| Enviro Car Valet Ltd | Rubery | 2025 |
| Enviro Estates Limited | Altrincham | 2015 |
| Enviro Plant Ltd | Chepstow | 2021 |
| Enviro Zinc Limited | Manchester | 2020 |
| Enviro-Fresh Limited | Crawley | 2000 |
| Enviro-Safe Services Limited | Sutton Coldfield | 2007 |
| Enviro-Tek International Ltd | Leeds | 2021 |
| Envirobat Limited | St. Albans | 2023 |
| Envirobed Ltd | Preston | 2022 |
| Envirocare Services Limited | Bridgwater | 1990 |
| Enviroclean Limited | Swadlincote | 2006 |
| Enviroco Limited | Great Yarmouth | 2018 |
| Enviroculture Limited | Preston | 1997 |
| Envirodat Limited | London | 2003 |
| Envirodrain Limited | Belper | 2010 |
| Envirodrains (Birmingham) Limited | Birmingham | 2012 |
| Enviroflow Services Limited | Brighton | 2016 |
| Enviroflute Ltd | Watford | 2020 |
| Envirofone Limited | Rosehill, Carlisle | 2010 |
| Enviroheat HET (France) Ltd | Cheadle | 2015 |
| Envirohoard Limited | Uxbridge | 2008 |
| Envirohomes Limited | Wigton | 2006 |
| Envirolight Limited | Guildford | 2010 |
| Envirolution UK Limited | London | 2003 |
| Enviromesh Construct Limited | Burton-On-Trent | 2018 |
| Enviromesh Geotechnics Limited | Burton-On-Trent | 2018 |
| Enviromesh Limited | Burton-On-Trent | 2016 |
| Enviromose Limited | Cheadle | 2008 |
| Environ Groundworks Ltd | Enfield | 2012 |
| Environer Ltd | Tonbridge | 2023 |
| Environet Limited | Reigate | 2011 |
| Environment & Leisure Limited | Woking | 1990 |
| Environment Protect Ltd | Leeds | 2025 |
| Environmental Aggregates (SW) Limited | Somerset | 2000 |
| Environmental Biotech Limited | Macclesfield | 2006 |
| Environmental Concepts Limited | Chichester | 2010 |
| Environmental Consulting and Services Limited | Hammond Avenue, South Reddish | 2012 |
| Environmental Evaluation Limited | London | 1991 |
| Environmental Markets Exchange Limited | London | 2010 |
| Environmental Nominees Limited | Salford | 2006 |
| Environmental Pipeline Systems Limited | Dunstable | 2014 |
| Environmental Power International (Holdings) Limited | Morden | 1999 |
| Environmental Refrigeration Technologies Limited | Yaxley | 2001 |
| Environmental Resource Group Limited | Burntwood | 2004 |
| Environmental Sealand Services Limited | Fareham | 1991 |
| Environmental Services Limited | Denbighshire | 2005 |
| Environomics Consultants Limited | Looe | 2004 |