| Businesses International London Ltd | Hornchurch | 2021 |
| Bustajobs Ltd | Wimborne | 2020 |
| Buster Skips Limited | Bradford | 2025 |
| Butler Bros Environmental Solutions Ltd | Stockton-On-Tees | 2020 |
| Butler Skips Limited | Ashford | 2022 |
| Butler-Hall Engineering Ltd | Shaftesbury | 2006 |
| Butlers Services Ltd | Reading | 2016 |
| Butlers Waste Management Ltd | Newcastle | 2004 |
| Buttrevive Ltd | Romford | 2025 |
| BUZ Solutions Ltd | Woking | 2018 |
| Buzz Jacks Waste Management Ltd | Basildon | 2023 |
| Buzzard Skips Ltd | Dunstable | 2024 |
| Bvas Builders and Plumbers Ltd | London | 2012 |
| BW Skip Hire Limited | Leeds | 1996 |
| Bwaw Ltd | London | 2022 |
| BWM Waste Management Ltd | Sidcup | 2025 |
| BWR Recycling Limited | Cupar | 2022 |
| BWS 2025 Ltd. | Leicester | 2004 |
| BWS Building & Waste Services Limited | High Wycombe | 2023 |
| BWS Trading Limited | Birmingham | 2013 |
| BWT (NI) Limited | Donaghadee | 2012 |
| BWW (Somerset) Limited | Taunton | 2014 |
| BY the Bay Services Limited | St Ives | 2023 |
| BYE BYE Rubbish Ltd | London | 2025 |
| Byford Logistics Ltd | Exeter | 2025 |
| Bypass Waste Management Ltd | Brierley Hill | 2020 |
| Byproduct Recovery Limited | Knottingley | 2007 |
| Byronswell Limited | Harrow | 2004 |
| Bytescraper Ltd | Godalming | 2026 |
| Bywaste Ltd | Slough | 2024 |
| Bywaters (Leyton) Limited | Bow | 1952 |
| Byworth Waste Removal Services Ltd | Northampton | 2024 |
| Byzantine Recycling Ltd | Swindon | 2025 |
| C & a Asbestos Removal Ltd | Bangor | 2004 |
| C & C Designs (Fakenham) Ltd | | 2000 |
| C & C Moulds Limited | Horsham | 1994 |
| C & C Waste Management (UK) Ltd | Bromsgrove | 2020 |
| C & Co Grab Hire Ltd | Kempston | 2011 |
| C & D Disposal Ltd | Uxbridge | 2024 |
| C & F Contracts Ltd | Armagh | 2006 |
| C & L Hauliers Ltd | London | 2020 |
| C & M Waste Management Limited | Telford | 2007 |
| C & N Recycling Ltd | Rochdale | 2021 |
| C & P Studios Limited | Surrey | 1987 |
| C & R Grieveson Ltd | Wallsend | 2014 |
| C & S Home Maintenance Services Ltd. | Southend-On-Sea | 2017 |
| C & S Metals Ltd | Chertsey | 2025 |
| C & S Services (Essex) Ltd | Basildon | 2025 |
| C & S Water Treatment Ltd | Wilmslow | 2001 |
| C & W Knight Limited | Southam | 2002 |
| C a Asbestos Services Limited | Rotherham | 2015 |
| C a D Recycling Limited | Deganwy | 2009 |
| C and a Home Improvements Limited | Northamptonshire. | 1993 |
| C and C Car Parts Norfolk Limited | Attleborough | 2017 |
| C and D Environmental Limited | Bootle | 2017 |
| C Baxendale Metal Recycling Ltd | Preston | 2012 |
| C C Clearance Ltd | Leek | 2024 |
| C F B Contracts Ltd | Waltham Abbey | 2020 |
| C H Enviro Ltd | Swindon | 2024 |
| C H Recycling Solutions Ltd | Matlock | 2019 |
| C H Skips Limited | Shepperton | 2020 |
| C H Specialist Training Ltd | Northampton | 2018 |
| C J Body Services Limited | Rochester | 2023 |
| C J Crampton Limited | Doncaster | 2017 |
| C J Drainage Clearance Limited | Colchester | 2024 |
| C J Lyon & Sons Ltd | Ormskirk | 2021 |
| C J Sweepers Ltd | London | 2013 |
| C J Waste Services Limited | Portsmouth | 2012 |
| C J Waste Solutions Ltd | Birmingham | 2018 |
| C L Towell & SON (Metals) Ltd | Corby | 2013 |
| C R Hales Limited | Lowestoft | 1991 |
| C R Pallets Limited | Burnley | 2016 |
| C Ramsdale & SON Ltd | Chesterfield | 2022 |
| C S Industries Ltd | Sheffield | 2012 |
| C S Miles Engineering Limited | West Malling | 2016 |
| C S Waste Limited | Newport | 2002 |
| C View Windows Limited | | 2000 |
| C&C Aggregates and Plant Limited | Cheadle | 2024 |
| C&C Clearance Ltd | Lisburn | 2022 |
| C&C Grab Hire Ltd | Watford | 2022 |
| C&C Sport&Classics&Cars Ltd | Welshpool | 2019 |
| C&E Skips Ltd | Coventry | 2025 |
| C&G Collections Ltd | Corsham | 2018 |
| C&H Plumbing & Heating (2020) Ltd | Hillsborough | 2020 |
| C&J Environmental Services Ltd | Benfleet | 2025 |
| C&J Removals & Building Services Limited | Hull | 2025 |
| C&J Waste Removals Ltd | Bolton | 2025 |
| C&L Skips London Limited | Waltham Abbey | 2018 |
| C&L Waste OIL Collection Limited | Barnards Way Lowestoft | 2001 |
| C&M (Midlands) Ltd | Nottingham | 2014 |
| C&M Groundworks Ltd | Llanfairpwllgwyngyll | 2025 |
| C&M Trotter Limited | Penrith | 1995 |
| C&O Recycling Logistics Ltd | Tunbridge Wells | 2026 |
| C&R Drainage Ltd | Sittingbourne | 2026 |
| C&R Lewis Ltd | Solihull | 2020 |
| C&S Recycling Limited | Eastbourne | 2024 |
| C&S Skip Hire Limited | Walsall | 2011 |
| C&S Southwest Limited | Beaminster | 2020 |
| C&T Water Management Ltd | Wickford | 2018 |
| C-Cycle Recyclers Limited | Wilmslow | 2003 |