| Rocol (Scotland) Limited | East Kilbride | 2007 |
| ROD a Drain Limited | London | 2020 |
| ROD South Yorkshire Ltd | Doncaster | 2003 |
| Rodders Drainage Services Limited | Spalding | 2019 |
| Rodders Ltd | Nottingham | 2023 |
| Roden Water Supplies Limited | Telford | 2014 |
| ROE Environmental Ltd | Benfleet | 2014 |
| Rofus Investments Limited | Chorley | 2025 |
| Roganz Waste Ltd | Wallasy | 2025 |
| Roger Little (North West) Limited | Stockport | 2007 |
| Rogers & Sons Skip Hire Limited | Manchester | 2020 |
| Rogers Waste Services Ltd | Salford | 2017 |
| Rogersons MAN With a Van Limited | Hitchin | 2025 |
| Rogersons Recycling Ltd | Rochdale | 2025 |
| Rojac (UK) Limited | Northwich | 2006 |
| Roka (UK) Ltd | London | 2012 |
| Rolloflo Maintenance Ltd | Bolton | 2024 |
| Rollys Bulk Uplifts Ltd | Glasgow | 2024 |
| Roma Design Limited | | 2001 |
| Roman & LU Limited | Barking | 2019 |
| Roman Skip Hire Ltd | London | 2026 |
| RON Hull Demolition Limited | Parkgate | 1992 |
| RON Smith (Recycling) Limited | Maidenhead | 2001 |
| Ron's Rubbish Limited | London | 2023 |
| Ronald Hull JNR. Limited | Parkgate | 1976 |
| Ronnie Ariston Ltd | Inverness | 2023 |
| Rons Removals Ltd | Northolt | 2024 |
| Roods Environmental Services Limited | Saltash | 1995 |
| Roods Landfill Limited | Plymouth | 1998 |
| Rook Trading Ltd | London | 2018 |
| Rooney Metals Ltd | | 2002 |
| Rooneys Scrap Merchants Limited | Gateshead | 2003 |
| Roop Scoop Ltd | Bristol | 2025 |
| Rope Access Assist Ltd | Congleton | 2014 |
| Roro Haulage & Skip Hire Ltd | Stevenage | 2019 |
| Rose Cottage Drainage Management Company Limited | Narberth | 2014 |
| Rose Farm Barns Management Company Limited | Nantwich | 2005 |
| Rosehill Waste Management Limited | Haverfordwest | 2010 |
| Roseland Heathfield Ltd | Newton Abbot | 2001 |
| Rosewood Recycling Limited | Middlesbrough | 2010 |
| Ross W Birkle Limited | Loughborough | 2015 |
| Rossendale Recycling Limited | Bury | 2015 |
| Rossendale Skip Hire Ltd | Rossendale | 2019 |
| Rossheath Developments Limited | Cleator | 2025 |
| Rotherham Waste Oils Limited | Mexborough | 2004 |
| Rotunda Waste Limited | Ormskirk | 2013 |
| Roulstone International Limited | Cardiff | 1961 |
| Roupcycle Ltd | Fleet | 2015 |
| ROV Resources Limited | Stalybridge | 2013 |
| Rovin Environmental (North East) Limited | Gateshead | 2010 |
| Rowan & Co Construction Ltd | York | 2025 |
| Rowan Asset Disposal Ltd | Wimborne | 2024 |
| Rowan Environmental Services Limited | Rowley Regis | 2024 |
| Rowan Scrap Metals Limited | Preston | 2008 |
| Rowell Contracting Limited | Wisbech | 2015 |
| Rowker Consultancy Ltd | Bracknell | 2023 |
| Roxburghe Recycling Limited | Woking | 2016 |
| ROY Hall Limited | Banbury | 2021 |
| ROY Hatfield Limited | Rotherham | 1978 |
| Roydon Bottle Recycling Limited | Swinton | 2013 |
| Roydon Resource Recovery Ltd | Manchester | 1999 |
| Royston Tyre Recycling Ltd | Royston | 2021 |
| RP Busy BEE Ltd | Bradford | 2019 |
| RP Pickups Ltd | Linwood | 2025 |
| RP Recovery Ltd | Hoddesdon | 2023 |
| RPC Contractors Ltd | Glasgow | 2024 |
| RPG Services UK Limited | Chester | 2005 |
| RPM Group Limited | Grimsby | 2016 |
| RPM House Clearance Ltd | Corsham | 2023 |
| RPR Skips Ltd | Glasgow | 2018 |
| RPS Drainage Experts Ltd | London, | 2025 |
| RPS Drainage Services Limited | Guildford | 2002 |
| RPS Environmental Limited | London | 2021 |
| RR Davies Limited | Pontypridd | 2006 |
| RR Drainage Ltd | London | 2023 |
| RR First Drainage Care Limited | Gillingham | 2021 |
| RR First Drainage Limited | Chatham | 2025 |
| RR Plumbing Solutions Ltd | London | 2014 |
| RR Waste Removal Ltd | Clydebank | 2025 |
| RRD Limited | Trafford Park | 2026 |
| RRG Limited | Scunthorpe | 2017 |
| RRT Recycling Limited | Sheffield | 2013 |
| RS Drainage Services Limited | Braintree | 2018 |
| RS Jeyam Limited | Hinckley | 2025 |
| RS Protrans Ltd | Morden | 2021 |
| RS Recycling Limited | Blandford Forum | 2014 |
| RS Wash & Waste Ltd | Newbiggin-By-The-Sea | 2025 |
| RSA Environment Ltd | Shrewsbury | 2020 |
| RSH (Manchester) Limited | Manchester | 2021 |
| RSH Bradford Limited | Baildon | 2016 |
| Rshi Investments AH1 Limited | St. Neots | 2017 |
| RSI Environmental Limited | Leigh-On-Sea | 2020 |
| RSK Environment Limited | Glasgow | 1989 |
| RSK Hi-Line Limited | Frodsham | 2021 |
| RSL (PVC) Limited | Liverpool | 2018 |
| RSL Waste Limited | Southport | 2020 |
| RSM Drainage Services Limited | Halifax | 2025 |
| RSM Fuel Services Limited | Halifax | 2022 |
| RSR Auto Salvage Limited | Nottingham | 2024 |
| RSR Drainage Limited | Surtees Business Park | 2009 |