| Windsor Waste Management Limited | Brentwood | 2000 |
| Windust Logistics Ltd | Cardiff | 2019 |
| Windy Ridge Recycling Ltd | Bradford | 2020 |
| Winegeek Ltd | Bretton | 2013 |
| Wintonfield Joinery Limited | Chesterton, Newcastle | 1984 |
| Winwin Clearance and Removals Ltd | Poole | 2025 |
| Wire and Cable Ltd | Birmingham | 2025 |
| Wire Waste Private Limited | London | 2026 |
| Wirral Drainage Limited | Birkenhead | 2008 |
| Wirral Metals Limited | London | 2003 |
| Wirral Skips Limited | Wirral | 2020 |
| Wirral Waste Ltd | Congleton | 2026 |
| Wirral Water Works Group Ltd | Wirral | 2022 |
| Wirral Water Works Limited | Wirral | 2017 |
| Wisbey Salvage and Spares Limited | Mayland | 2013 |
| Wise Waste Management Services Ltd | Orpington | 2025 |
| Wise Waste Removals Ltd | Swanley | 2019 |
| Wise Water Solutions Limited | Evesham | 2002 |
| Wiser Energy Limited | St Ives | 2021 |
| Wiser Recycling Limited | Eastleigh | 2003 |
| Wissey Water Limited | Bury St. Edmunds | 2000 |
| Witham Skip Hire Ltd | Colchester | 2023 |
| Wizards of Waste Ltd | Blackwood | 2025 |
| Wize Choice Limited | London | 2023 |
| WJ Consultancy Ltd | Birmingham | 2022 |
| WJ Waste Removals Ltd | Newcastle Upon Tyne | 2021 |
| Wjfj Ltd | Peterborough | 2014 |
| WJM Labour Services Ltd | Liverpool | 2017 |
| WKE (Middlesbrough) Ltd | Middlesbrough | 2019 |
| WKE (Site 2) Ltd | Middlesbrough | 2020 |
| WKO Solution Limited | Bradford | 2024 |
| WL Manandvan Ltd | Livingston | 2026 |
| WL Scrap Metal Recycling Ltd | Staines-Upon-Thames | 2023 |
| WLL Skips Ltd | Wolverhampton | 2021 |
| WM Lancaster Ltd | Lancaster | 2025 |
| WM Land Holdings Ltd | Preston | 2026 |
| WM Plant Limited | Andover | 2020 |
| WM Processing Limited | Northwich | 2014 |
| WM. M. Briers & SON (Tamworth) Limited | Tamworth, | 1954 |
| WM. R. Kerr & Company Ltd | Lurgan | 1998 |
| WMK Grab Hire Ltd | Hillingdon | 2026 |
| WML Solution Ltd | Glasgow | 2024 |
| WMR Recycling Limited | Wickford | 2017 |
| WMR Waste Solutions Limited | High Wycombe | 2017 |
| WMS Environmental Ltd | Tamworth | 2022 |
| WMS South West Ltd | Gloucester | 2024 |
| Wmtt Ltd | Dudley | 2018 |
| WN Removals Ltd | Wigan | 2025 |
| Wokingham Waste Management Ltd. | Reading | 2026 |
| Wold Skip Hire Limited | Doncaster | 2018 |
| Wolf Waste & Facilities Management Ltd | Glasgow | 2025 |
| Wolfhill Farm Ltd | Craigavon | 2025 |
| Wolverhampton Skip & Recycling Services Ltd | Wolverhampton | 2026 |
| Wolverhampton Skip Hire Limited | Evesham | 2002 |
| Womble Services Ltd | Faversham | 2020 |
| Womblers CIC | Ipswich | 2024 |
| Womblers Group Ltd | Northampton | 2026 |
| Womersley Restoration Limited | Sheffield | 2019 |
| Wood Newberry Ltd | Tadley | 2022 |
| Wood Recyclability Ltd. | Aberdeenshire | 1996 |
| Wood Recycling (Scotland) Limited | Insch | 2005 |
| Wood Waste Recycling Limited | Penrith | 1999 |
| Wood-U-Waste Limited | Bromley | 2009 |
| Woodbine Skips Ltd | Ballymena | 2004 |
| Woodcock Hill Management Company Limited | Rickmansworth | 1997 |
| Woodend Estates (Scotland) Ltd | Hamilton | 2024 |
| Woodflakes of Daventry Limited | Rugby | 1984 |
| Woodford Recycling Services Ltd. | Huntingdon | 2010 |
| Woodford Waste Management Services Ltd | Huntingdon | 2010 |
| Woodhorn Group Limited | Oving Chichester | 1998 |
| Woodland OIL Limited | Rotherham | 1996 |
| Woodrich Designs Limited | East Sussex | 2001 |
| Woodrobes Limited | Birmingham | 1990 |
| Woods Building Services Limited | Harlow | 1994 |
| Woods Waste Limited | Blackpool | 1993 |
| Woodside (1985) Ltd | Upminister | 2020 |
| Woodside Fusion Limited | Sheffield | 2017 |
| Woodstone Construction (SW) Limited | Radstock | 2004 |
| Woodville Furniture Products Limited | Litchard | 1991 |
| Woodville Recycling Limited | Boston | 2024 |
| Woodworx Recycling Ltd | Wirral | 2024 |
| Woody the Waste Pecker Ltd | Maidenhead | 2025 |
| Woodyard Recovery Ltd. | West Dunbartonshire | 2005 |
| Woolley's Recycling Limited | Ilkeston | 2006 |
| Worcester Polymer Limited | Droitwich | 2026 |
| Worcester Recycling Croydon Ltd | Orpington | 2021 |
| Worcester Recycling Ltd | Worcester | 2014 |
| Worcester Skip Hire Ltd | Upton-Upon-Severn | 2014 |
| Worcestershire Drain Services Ltd | London | 2019 |
| Workhorse Construction Limited | Reading | 2014 |
| World Care (Wales) Limited | North Wales | 1992 |
| World of Recycling Ltd | Wednesbury | 2011 |
| World Visual Limited | Bedwas | 1996 |
| Worldcare Recycling Limited | Llandudno Junction | 2015 |
| Worldtime PLC | London | 2004 |
| Worldwide Biorecyclables Limited | Swindon | 2007 |
| Worldwide Reduced Emissions Limited | Warwick | 2007 |
| Worldwide Spectrum Limited | Manchester | 2023 |
| Worldwide Waste Management Ltd | Manchester | 2009 |
| Worlsey Haulage Ltd | Manchester | 2010 |