| Enfield Skips Limited | Ilford | 2000 |
| Enfinium Ferrybridge Limited | London | 2017 |
| Enfinium K3 CHP Limited | London | 2014 |
| Enfinium K3 CHP Operations Limited | London | 2015 |
| Enfinium Kelvin Operations Limited | London | 2021 |
| Enfinium Parc Adfer Limited | London | 2014 |
| Enfinium Parc Adfer Operations Limited | London | 2014 |
| Enfinium Skelton Grange Limited | London | 2019 |
| Enfinium Skelton Grange Operations Limited | London | 2021 |
| Engineered Sealing Solutions Limited | Milton Keynes | 2017 |
| Engineering Center (U.K.) Limited | Wembley | 1985 |
| Enginepartsexpress UK Ltd | Bolton On Dearne | 2025 |
| Enginexport Ltd | Dunstable | 2025 |
| ENI Tellus CCS Limited | London | 2022 |
| Enicor Limited | Chesterfield | 1997 |
| Enisca Browne Limited | Cookstown | 2015 |
| Enisca Limited | Cookstown | 1999 |
| Enisca Site Services Limited | Cookstown | 2017 |
| Enki Environmental Limited | Halesowen | 2010 |
| Enler Infrastructure Limited | Holywood | 2022 |
| Enlightened Lamp Recycling Limited | Leyland | 2004 |
| ENM Services Ltd | Norwich | 2019 |
| Enovert North Limited | Stafford | 1992 |
| Enovert South Limited | Stafford | 1991 |
| Enro Recovery Ltd | Inverurie | 2025 |
| Enterprise Services Group Limited | Horsham | 1994 |
| Enterprise Skip and Grab Hire Limited | Aylesbury | 2018 |
| Enterprise Skip Hire Limited | Stoke Mandeville | 2012 |
| Entocycle Ltd | London | 2014 |
| Entrec Limited | Wrexham | 2004 |
| Enva Battery Recycling Limited | Newark | 2007 |
| Enva E-Waste England Limited | Newark | 2003 |
| Enva England Limited | Colwick Nottingham | 1997 |
| Enva England Specialist Waste Limited | Newark | 1997 |
| Enva Land Management Limited | Paisley | 2026 |
| Enva Northern Ireland Limited | Downpatrick | 1984 |
| Enva Organics Recycling Limited | Paisley | 1997 |
| Enva Plastics Limited | Newark | 2003 |
| Enva Resource Management Limited | Linwood, Paisley | 2013 |
| Enva Scotland Limited | Paisley | 1975 |
| Enva Specialist GB Limited | Paisley | 2026 |
| Enva UK Limited | Newark | 2001 |
| Enva Weee Recycling Scotland Limited | Perth | 2023 |
| Enva Wood Recycling Manchester Limited | Newark | 2010 |
| Enva Wood Recycling Middlesbrough Limited | Newark | 2005 |
| Enva Wood Recycling Tilbury Limited | Newark | 2011 |
| Enval Limited | London | 2005 |
| Envale UK Ltd | Grays | 2019 |
| Envar Composting Group Limited | Pluckley | 2003 |
| Envar Composting Limited | Ashford | 2001 |
| Envcon Europe Ltd. | | 2007 |
| Enveo Aston Ltd | Market Drayton | 2022 |
| Envexo Waste Limited | Bridgend | 2023 |
| Envida Limited | Shrewsbury | 2019 |
| Envigen Ltd | Reading | 2018 |
| Envigma Ltd | Clacton On Sea | 2016 |
| Envik Waste Recycling Services Limited | Bridgend | 2024 |
| Envint Limited | Newark | 2014 |
| Envira Limited | Luton | 2001 |
| Enviraz (Scotland) Limited | Glasgow | 1975 |
| Enviraz Limited | Glasgow | 2013 |
| Envirecycle Ltd | Carshalton | 2023 |
| Enviresource Consulting Ltd. | Llanelli | 2011 |
| Envirion Ltd | Stoke-On-Trent | 2023 |
| Enviro & Collections Limited | Reading | 2025 |
| Enviro (Broadbent Moss) Limited | Rochdale | 2023 |
| Enviro (Elland North) Limited | Rochdale | 2023 |
| Enviro (GY) Limited | Grimsby | 2003 |
| Enviro (London) Ltd | Barnet | 2022 |
| Enviro (Meek Street) Limited | Rochdale | 2023 |
| Enviro (Regent Street) Limited | Rochdale | 2023 |
| Enviro (Town Farm) Limited | Rochdale | 2023 |
| Enviro Ability | Ross-On-Wye | 1999 |
| Enviro Built Ltd | London | 2025 |
| Enviro Care N.I. Limited | Omagh | 2004 |
| Enviro Care Waste Solutions Ltd | Crewe | 2016 |
| Enviro City Limited | Birmingham | 2013 |
| Enviro Collections Ltd | Milton Keynes | 2017 |
| Enviro Control UK Limited | Kingston-Upon-Thames | 2020 |
| Enviro Electronics Ltd | Doncaster | 2011 |
| Enviro Farm Environmental Ltd | Newry | 2021 |
| Enviro Farm Ltd | Newry | 2013 |
| Enviro Help Ltd | | 2003 |
| Enviro IT Limited | Bristol | 2023 |
| Enviro Kleen (Scotland) Limited | Glasgow | 2013 |
| Enviro Klenz Cleaning and Waste Solutions Ltd | Shipley | 2025 |
| Enviro Metals Lancaster Ltd | Morecambe | 2012 |
| Enviro OIL Environmental Solutions Experts Ltd | Croydon | 2026 |
| Enviro Path Waste Systems Limited | Liverpool | 2025 |
| Enviro Property Services Limited | Blackburn | 2019 |
| Enviro Response Limited | Manchester | 2020 |
| Enviro Sewage Treatment Services Limited | Aylesbury | 2013 |
| Enviro Skip Cumbria Limited | Carlisle | 2025 |
| Enviro Waste London Ltd | London | 2011 |
| Enviro Waste Scot Ltd | Hillington | 2024 |
| Enviro Wise Solutions Ltd | Bristol | 2022 |
| Enviro-Core Solutions Limited | Grangemouth | 2010 |
| Enviro-Point Limited | The Parklands | 2020 |
| Enviro-Strip (GB) Ltd | Tamworth | 2016 |
| Enviro-Tec SW Ltd | Newton Abbot | 2019 |