| Borders Recycling Limited | Hexham | 2004 |
| Bordlan Limited | Lincoln | 2010 |
| Borehams Environmental Ltd | Leigh-On-Sea | 2020 |
| Borg Waste Management Limited | Newport | 2025 |
| Boris RS Construction Ltd | London | 2015 |
| Born Again Plastics Recycling Ltd | Uckfield | 2006 |
| Borough Drainage Services Ltd | Gravesend | 2024 |
| Boruijs New Material Technology Co., Ltd | West Midlands, England | 2023 |
| BOS Resources Limited | Swansea | 2010 |
| BOS Waste Oils Limited | Chester | 2000 |
| Boss Plant Limited | Rufford | 1996 |
| Boss Skips Ltd | Neath | 2025 |
| Boss Waste Management Ltd | Billericay | 2021 |
| Bostall Skips Ltd | Bexley | 2017 |
| Bostraze Recycling Limited | Penzance | 2018 |
| Boswell Bros.(Salisbury)Limited | Salisbury | 1942 |
| Boswiddle Water Management Company Limited | Truro | 2014 |
| Botanical Water Technologies Ltd | London | 2020 |
| Bothy Close Management Company Limited | Eye | 2019 |
| Bottleman Recycling Services Limited | Axminster | 2007 |
| Bottles Reborn Ltd | Solihull | 2025 |
| Boulton Skip Hire Limited | Uttoxeter | 2004 |
| Bourne Skip Hire and Recycling Limited | Bourne | 2002 |
| Bournemouth & Poole House Clearance Ltd | Bournemouth | 2013 |
| Bournemouth's Upcycling Emporium Ltd | Bournemouth | 2021 |
| Bournemouthwasteclearance Ltd | Poole | 2026 |
| Bourton Liquid Waste Disposal Ltd | Daventry | 2022 |
| Bourton Liquid Waste Limited | Daventry | 2021 |
| Boustead Renewables Limited | London | 2014 |
| BOW Metals Recycling Ltd | London | 2012 |
| Bowden Environmental Consultancy Limited | Lowestoft | 2017 |
| Bowen (Contracting) Limited | Treharris | 2002 |
| Bowen Grab Hire & Recycling Ltd | Ebbw Vale | 2025 |
| Bower Cobbles Ltd | Marshfield | 2024 |
| Bower Recycling Limited | Nottingham | 2021 |
| Bower Skip Hire Limited | Huddersfield | 2009 |
| Bowstan Limited | Boston | 2007 |
| Box Clearance Ltd | Bristol | 2022 |
| Box Projects & Solutions Ltd | London | 2026 |
| Boxell Waste Management Ltd | Luton | 2021 |
| Boxremoval Limited | London | 2025 |
| Boyattins Ltd | London | 2025 |
| Boydens Building Restoration Limited | Chesterfield | 2011 |
| BP Waste and Removals Ltd | Mildenhall | 2026 |
| Bppc Limited | Kent | 2006 |
| BPS Services ( Kent ) Ltd | Ramsgate | 2021 |
| BPW BIO Soils Ltd | Manchester | 2014 |
| BR Aggregates Recycling Ltd | Newcastle Upon Tyne | 2024 |
| BR MRF Ltd | Newcastle Upon Tyne | 2024 |
| BR Organics Recycling Ltd | Newcastle Upon Tyne | 2024 |
| BR Recycling Ltd | Woodhall Spa | 2023 |
| Brace Turner Limited | Peterborough | 2002 |
| Brackley Recycling Ltd | Brackley | 2023 |
| Brackley Tipping Services Limited | Sheerness | 2014 |
| Brad Tyler Plumbing & Drain Services Ltd | Gosport | 2025 |
| Bradford Junk & Rubbish Limited | Cleckheaton | 2020 |
| Bradford Organic Communities Service Ltd | Bradford | 2004 |
| Bradford Skip Hire Limited | Bradford | 2017 |
| Bradford Skip Services Ltd | Bradford | 2022 |
| Bradford Skips Ltd | Bradford | 2025 |
| Bradley Environmental Consultants Limited | West Midlands | 1991 |
| Bradley Furniture Limited | Folkestone | 1982 |
| Bradley Park Waste Management Limited | Manchester | 2009 |
| Bradley's Waste Removals Ltd | London | 2023 |
| Bradwell Skip Services Limited | South Yorkshire | 1999 |
| Braintree Skip Hire Ltd | Gt Horkesley | 2023 |
| Bramble Environmental Limited | Newcastle Upon Tyne | 2018 |
| Brampton Estates Maintenance Ltd | Chesterfield | 2023 |
| Brampton Skip Hire Limited | Carlisle | 1999 |
| Branch Sustains Ltd | Ashford | 2024 |
| Brand and Howes Environmental Limited | Chelmsford | 2006 |
| Brandguard Secure Recycling Ltd | Ferndown | 2024 |
| Branover Sewerage Ltd | St. Albans | 2024 |
| Brantlegh Waste Limited | Manchester | 2012 |
| Brava Containers Ltd | Accrington | 2025 |
| Brava Ltd | Ilford | 2022 |
| Brava Waste Management Ltd | London | 2026 |
| Brave Water Ltd | Beaconsfield | 2019 |
| Bravo ACO Ltd | Kington | 2025 |
| Brazil Skip Hire Limited | Reading | 2021 |
| Brazukskip & Motorcycle for Rent Ltd | Mitcham | 2022 |
| BRD Waste Solutions Limited | Caldicot | 2020 |
| Breakspear Metal & Scrap Ltd | Abingdon | 2024 |
| Breen M8 Limited | London | 2026 |
| Breen Recovery (Carnbroe) Limited | London | 2025 |
| Breen Recovery (Lostock) Limited | London | 2025 |
| Bregazzi and Starr Construction Limited | Durham | 2016 |
| Brema Recycling Limited | London | 2008 |
| Brenna Ltd | London | 2023 |
| Brent OIL Contractors Limited | Middlesex | 1977 |
| Brentwood Recycling Services Limited | Basildon | 2013 |
| Brereton Ltd | Solihull | 2006 |
| Brewers Contractors Limited | Blackburn | 2012 |
| Brewster Brothers Limited | Livingston | 1995 |
| Brhm Services Ltd | Barking | 2024 |
| Bri-Chez Bulk Haulage Limited | Halstead | 2022 |
| Bri-Chez Limited | Essex | 2007 |
| Brian Drage Water Treatment Consultant Limited | Burton-On-Trent | 2012 |
| Brian Easey Holdings Ltd | Wisbech | 2017 |
| Brice Environmental Services Ltd. | Rugby | 2003 |