| Barbridge Management Company Limited | Nantwich | 2000 |
| Barclay Site Services Limited | Basildon | 2021 |
| Barcliff Investments Limited | Tamworth | 2013 |
| Bardon Environmental Limited | Sheffield | 1987 |
| Bargain Waste Disposal Limited | Wakefield | 2020 |
| Bargainwaste Ltd | Kington | 2020 |
| Barker Bins Ltd | Walsall | 2026 |
| Barker Group Birmingham Limited | Walsall | 2025 |
| Barkham Ride Finchampstead Ltd | Chertsey | 2024 |
| Barkley Waste Removal Ltd | London | 2025 |
| Barleymans Limited | Ashbourne | 2003 |
| Barn Farm Court Management Company Limited | Trent, Nottingham | 1996 |
| Barncraft Furniture Limited | 18A Beehive Lane | 1988 |
| Barnes and Sons Contracting Ltd | Coventry | 2025 |
| Barnes Recycling Limited | Brentford | 2014 |
| Barngate Developments Limited | Northampton | 2013 |
| Barnhams Ltd | Epsom | 2019 |
| Barnsley Waste Disposal Limited | Barnsley | 2006 |
| Barnwell-Thornton Property Limited | Leicester | 2016 |
| Barr + Wray Holdings 2 Limited | Glasgow | 2004 |
| Barr + Wray Holdings Limited | Glasgow | 1997 |
| Barr + Wray Limited | Glasgow | 1964 |
| Barr Environmental Limited | Bellshill | 1996 |
| Barra and Vatersay Environmental Services Limited | Isle Of Barra | 2010 |
| Barrett Water Ltd | Banbury | 2018 |
| Barry's Skip Hire Limited | Merseyside | 2007 |
| Barth Services Ltd | Canvey Island | 2014 |
| Bartlett Contracting Services Limited | Clevedon | 2011 |
| Bartlett Groundworks Limited | Waterlooville | 2017 |
| Bartmew Consultancy Ltd | Nottingham | 2026 |
| Barton Scotland Limited | Edinburgh | 2001 |
| Barton Skip and Grab Hire Limited | Stevenage | 2013 |
| Barton Waste Limited | Stevenage | 2017 |
| Bash Recycles Limited | Leeds | 2026 |
| Baspro Group Ltd | London | 2021 |
| Bassetts of Hull Limited | Hull | 2008 |
| Basskam Limited | London | 2012 |
| Bastion Asbestos Consulting Ltd | Cwm | 2019 |
| Basura (International) Ltd | Sheffield | 2018 |
| Basura (UK) Ltd Ltd | Glasgow | 2025 |
| BAT Aggregate Midlands Limited | Walsall | 2016 |
| Bateman Skips Ltd | Helsby | 2003 |
| Bates Brothers Ltd | Belfast | 1990 |
| Bates Environmental Limited | Lincs | 2002 |
| Batesy Waste Management Ltd | Belfast | 1990 |
| Bath Skips Ltd | Somerton | 2024 |
| Bath Waste Ltd | Bath | 2021 |
| Bathroom Warehouse UK Limited | Mitcham | 2007 |
| Batsby Recycling and Waste Collection Ltd | Walsall | 2026 |
| Battery Reclamation Limited | London | 2011 |
| Battery Recyclers Ltd | Crowborough | 2014 |
| Battri UK Ltd. | London | 2023 |
| Batts Haulage Ltd | Ashford | 2018 |
| Bauman Pest Control Limited | London | 2016 |
| Baxter Waste Solutions (NI) Ltd | Omagh | 2013 |
| Bay Oils Limited | Carnforth | 2001 |
| Bay Reclaimed & Salvage Ltd | London | 2026 |
| Baydale Architectural Systems Limited | Water Lane | 1995 |
| Bayliss Recovery Limited | Newport | 2001 |
| Baymore Ltd | Bishop'S Stortford | 2023 |
| Bayside Cleaning Services Ltd | Newton Abbot | 2023 |
| Bayston Transport Limited | East Yorkshire | 2002 |
| Baytree Resource Management Limited | Beckenham | 2020 |
| BB Soils Ltd | Motherwell | 2017 |
| BBJ Group UK Limited | Derby | 2026 |
| BBK Services 24/7 Ltd | Feltham | 2025 |
| BBL Building Equipment Ltd | Dartford | 2018 |
| BC Auto Sales and Repairs Ltd | Newry | 2016 |
| BC Clean & Clear Specialists Ltd | Newcastle Upon Tyne | 2026 |
| BC Enviro Services Limited | Dunfermline | 2003 |
| BCC International Limited | Peterborough | 2004 |
| BCD Contracting Services Ltd | Pontypool | 2015 |
| BCL (Wales) Limited | De La Beche Street | 2006 |
| BCM Secure Storage Ltd | Widnes | 2011 |
| Bcmy Ltd | Littlehampton | 2002 |
| BCP House Clearance Ltd | Bournemouth | 2025 |
| BCR Recycling Limited | Bracknell | 2022 |
| BCR UK Limited | Coventry | 2009 |
| BD International Distributions Ltd | London | 2014 |
| BDE Clearance Limited | Romford | 2023 |
| Bdgi Ltd | Sidcup | 2019 |
| BDJ Transport Ltd | Hertford | 2024 |
| BDR Property Limited | Doncaster | 1988 |
| BDR Waste Disposal Limited | Doncaster | 1992 |
| Beach Road Water Limited | London | 2011 |
| Beacon Biomass Limited | Birmingham | 2020 |
| Beacon Hill Brick Company Limited(The) | Wimborne | 1937 |
| Beagle Homes Ltd | Airdrie | 2018 |
| Beamish Trading Limited | St Athan | 2009 |
| Bearpol Trading Ltd | London | 2025 |
| Bearwaste Limited | Manchester | 2016 |
| Beast Removalz Ltd | Bristol | 2023 |
| Beattie's Recycling Ltd | Camlough | 2006 |
| Beautiful Rubbish Removals Ltd | Bradford | 2025 |
| Beautiful Spaces, by David Limited | Woking | 2021 |
| Beaver Water Innovations Limited | Worcester | 2019 |
| Beaverbest Limited | Berwick Upon Tweed | 1993 |
| Becca Technologies Limited | London | 2023 |
| Beck ROW Auto Dismantlers Ltd | Bury St. Edmunds | 2007 |
| Beckart Environmental International Limited | Rugeley | 1992 |