| Central (Birmingham) Skip Hire Ltd | Smethwick | 2020 |
| Central Drainage Services Limited | Hertfordshire | 2006 |
| Central Grab Services Ltd | Coventry | 2024 |
| Central Junk Ltd | London | 2020 |
| Central Scotland Cleaning and Waste Soloutions Ltd | Glasgow | 2026 |
| Central Scotland Vehicle Recovery Limited | Falkirk | 2025 |
| Central Services Liverpool Limited | Liverpool | 2015 |
| Central Services Plus Ltd | Liverpool | 2025 |
| Central Tipper Hire Limited | Birmingham | 2002 |
| Central Waste (UK) Ltd | Nottingham | 2006 |
| Central Waste Management Limited | Enfield | 2023 |
| Central Waste Management West Ltd | Airdrie | 2025 |
| Central Waste OIL Collections Limited | Walsall | 1984 |
| Central Water Services Limited | Wolverhampton | 2018 |
| Centralgrange Environmental Waste Limited | Merseyside | 1999 |
| Centralgrange Limited | St Helens | 1996 |
| Centre for Horsham Energy Recovery Ltd | London | 2023 |
| Centrepoint Recycling Limited | Stanmore | 2017 |
| Centro Waste Limited | Sutton Coldfield | 2019 |
| Centurion Consultants Limited | London | 2021 |
| Century Recycling Services Limited | Dudley | 2009 |
| CER Recycling Limited | Cardiff | 2025 |
| Cergus Logistics Limited | Willenhall | 2023 |
| Cert Energy Ltd | Beverley | 2024 |
| Cert Trading Limited | London | 2023 |
| Certified Drain Services Limited | Chelmsford | 2015 |
| Certified E S G Association | Kington | 2024 |
| Certified Recycled Aggregates Network (UK) Ltd. | Kilmarnock | 2025 |
| CES Eco Park Holdings Limited | Middlesex | 2025 |
| Ceseco Limited | London | 2024 |
| Cesscon Decom Ltd | Glasgow | 2018 |
| Cesscon Ltd. | Broxburn | 2017 |
| Cesspool SID Limited | Horncastle | 2020 |
| Cessxpress Limited | Abergavenny | 2002 |
| Cestcon Realisations 2008 Limited | Leeds | 2003 |
| CFC Disposal Limited | Nottingham | 2006 |
| CGR Group Ltd | Kilmarnock | 2022 |
| CH Drainage UK Ltd | Watford | 2022 |
| Chadaker Limited | Bury | 2024 |
| Chair Gone Office Clearances Limited | London | 2023 |
| Challenger Site Services (NW) Limited | Ashton-Under-Lyne | 2023 |
| Challenger Waste Management Ltd | Pontypool | 2024 |
| Chamberlains Aqua and Energy Systems Limited | Eastleigh | 2017 |
| Chamberlains International Limited | Addlestone | 2017 |
| Chambers & Lock Ltd | London | 2017 |
| Chambers Runfold PLC | Runfold | 1984 |
| Chambers Waste Management Limited | Guildford | 1975 |
| Chameleon Manufacturing Company Limited | Somerton | 1988 |
| Champion MAN & Van Service Ltd | Glasgow | 2026 |
| Champion Sparking Plug Company Limited | Wirral | 1922 |
| Champion Water Compliance Limited | Matlock | 2015 |
| Chandler Skip Hire Ltd | Ashford | 2018 |
| Chang Dream Team Ltd | London | 2025 |
| Change Waste Recycling Limited | Edinburgh | 2003 |
| Changing Lives Charity | Clevedon | 2015 |
| Changing Waste Ltd | Gainsborough | 2016 |
| Chanja Datti UK Ltd | London | 2025 |
| Channel Marine (Sales) Limited | Edinburgh | 1994 |
| Channels Waste Solutions Ltd | Chelmsford | 2025 |
| Chansit Shums Limited | Beckenham | 2014 |
| Chapel Road Enterprise Ltd | Hereford | 2021 |
| Chapelfield Services Ltd | Wisbech | 2020 |
| Chapelgrove Waste Management Limited | Hampshire | 2001 |
| Chappel Utilities Ltd | Chelmsford | 2015 |
| Chapple Water Management Ltd | Callington | 2020 |
| Chapsmith Services Ltd. | Huntingdon | 2006 |
| Chapter Eight Interiors Ltd | London | 2020 |
| Chardo’S Ecosolve Ltd | London | 2025 |
| Charlemagne Holdings Limited | Dagenham | 2018 |
| Charles a Innes & Sons Limited | Keith | 1983 |
| Charles Lincoln Car Recycling Limited | Bradford | 2012 |
| Charles Maiden Waste Disposal Limited | Hereford | 2003 |
| Charles Muddle Limited | Billingshurst | 1982 |
| Charleston Restoration Ltd | Scorrier, Cornwall | 2022 |
| Charman Environmental Services Limited | Hedgerley Green | 2002 |
| Charter Furniture (1992) Limited | Manchester | 1992 |
| Chas.Storer Limited | St Albans | 1937 |
| Chase Drains 110 Limited | Stafford | 2021 |
| Chat Rubbish Ltd | Leighton Buzzard | 2025 |
| Chatha Hygiene Group Limited | Chatham | 2018 |
| Chawfine Shipping & Removal Services Ltd | Royston | 2026 |
| Chawston Irrigation Management Limited | Bedford | 1986 |
| CHB Waste Limited | Bridgnorth | 2021 |
| CHC Weee Ltd | Bridgnorth | 2025 |
| Cheap AS Skips Limited | Huddersfield | 2016 |
| Cheap Skips (IW) Ltd | Isle Of Wight | 2003 |
| Cheapcheapwasteremovalandgroundmaintenance Ltd | Wallington | 2026 |
| Cheaperwaste Ltd | Newcastle Upon Tyne | 2011 |
| Cheapest Clearance Limited | Wickford | 2025 |
| Checkmate Waste Management Ltd | London | 2024 |
| Chefs Oils Ltd | Liverpool | 2026 |
| Chelford Mobile Services Ltd | London | 2022 |
| Chelssea Limited | Uxbridge | 2025 |
| Cheltenham Grab Hire Limited | Cheltenham | 2023 |
| Cheltenham Waste Limited | Cheltenham | 2024 |
| Chelwood (SE) Limited | Manchester | 1971 |
| Chelworth Water Company Limited | Malmesbury | 2020 |
| Chem Sound Services Limited | Sandbach | 2011 |
| Chemclear (UK) Ltd | Warrington | 2001 |
| Chemclear Industrial & Waste Services Ltd | Warrington | 2014 |