| Southern Drainage Solutions Ltd | London | 2025 |
| Southern Drains & Water Ltd | Romford | 2018 |
| Southern Electrical Recycling Limited | Portsmouth | 2018 |
| Southern Remedial Services Limited | Aldermaston | 1978 |
| Southern Tyre Recycling Ltd | Herne Bay | 2015 |
| Southern Utilities (Holdings) Limited | Snodland | 1986 |
| Southern Utility Services Ltd | Bexhill-On-Sea | 2012 |
| Southern Vehicle Solutions Ltd | London | 2025 |
| Southern Waste Management Ltd. | Greenford | 2022 |
| Southern Waste Services Ltd | London | 2025 |
| Southern Waste Solution Ltd | Worthing | 2025 |
| Southern Water Retail Services Limited | Worthing | 2014 |
| Southern Water Services Limited | Worthing | 1989 |
| Southlineservices Ltd | London | 2026 |
| Southport Skip Hire Ltd | Burscough | 2017 |
| Southside Recycling Ltd | Canterbury | 2023 |
| Southwark Metals Limited | London | 1982 |
| Southwark Metals Vehicle Recycling Limited | London | 2024 |
| Southway Asbestos Limited | Basildon | 2019 |
| Southwest Metals Ltd | Plymouth | 2012 |
| Southwest Property Clearance Limited | Yeovil | 2025 |
| Sova Group (UK) Ltd | Sidmouth | 2010 |
| Sovereign Sofas Limited | Birmingham | 2005 |
| Sovereign Waste Services Ltd | Falkirk | 2024 |
| Sovini Waste Solutions Limited | Bootle | 2011 |
| Spa Construction (Midlands) Limited | Birmingham | 2012 |
| Space Genies Ltd | Portsmouth | 2024 |
| Space Genies Waste Ltd | Portsmouth | 2026 |
| Space Hub Ltd | Londonderry | 2019 |
| Space Rubbish Limited | London | 2007 |
| Space Rubbish Waste Management Ltd | London | 2015 |
| Space Solutions (Scotland) Limited | Aberdeen | 2007 |
| SPAD3 Ltd | Bath | 2025 |
| Spalding Drain Services Ltd | Spalding | 2026 |
| Spaldington Resource Recycling Limited | Selby | 2005 |
| Span Recycling UK Ltd | Glasgow | 2018 |
| Spaniard Hall Recycling Ltd | Halifax | 2016 |
| Sparkford Engineered Products Ltd | 67 Newhall Street Birmingham | 1987 |
| Sparkle Cleaning Co Limited | Droitwich | 2009 |
| Sparkle Waste Ltd | Barking | 2011 |
| Sparks Recycling Ltd Ltd | Ashington | 2024 |
| Sparling Recycling Limited | Tavistock | 2014 |
| Sparta Construction Ltd | Ringwood | 2019 |
| Spartan Business Ltd | Smethwick | 2020 |
| Spartan Drainage Ltd | Ashford | 2025 |
| Spartan Metal Recycling Limited | Grays | 2021 |
| Spartan Waste and Tree Services Ltd | Neath | 2026 |
| Spartan Waste Limited | Leicester | 2022 |
| Spatone Limited | London | 1986 |
| SPB Aggregates Ltd | London | 2017 |
| SPD (Brighton) Ltd | Hove | 2001 |
| Spear Removals Ltd | London | 2024 |
| Spearpoint and SON Ltd | Chelmsford | 2021 |
| Spec Box Limited | Batley | 2001 |
| Special Metals & Engineering Ltd. | Trading Es, Rotherham | 1998 |
| Special Removals and Services Ltd | London | 2012 |
| Special Waste Services Limited | Great Missenden | 2016 |
| Specialised Carrier Solutions Limited | Omagh | 2012 |
| Specialised Waste Solutions Ltd | Wakefield | 2006 |
| Specialist Clean & Care North West Ltd | Carnforth | 2021 |
| Specialist Cleaning Limited | Carterton | 2023 |
| Specialist Disposals Limited | Blandford Forum | 2015 |
| Specialist Property Group Ltd | Newport | 2023 |
| Specialist Recycling Ltd | Kington | 2025 |
| Specialist Remediation Solutions Ltd | Kettering | 2023 |
| Specialist Skip Hire Limited | Saltash | 2005 |
| Specialist Surveyors Limited | Stourbridge | 2002 |
| Specialist Waste Recycling Limited | Glasgow | 2007 |
| Specialist Weee Services (SWS) Limited | Ilkeston | 2021 |
| Spectra DMT Limited | Basildon | 2025 |
| Spectraserve Limited | Stourbridge | 2017 |
| Spectrum Drainage Ltd | Enfield | 2012 |
| Spectrum Home Solutions Limited | Manchester | 2024 |
| Spectrum Recycling Limited | Milton Keynes | 2014 |
| Speed & Trust Ltd | Reading | 2018 |
| Speed 6041 Limited | London | 1945 |
| Speed-Removals International Ltd | Colchester | 2016 |
| Speedy BIN Ltd | Brixham | 2023 |
| Speedy Cargo Services Manchester Ltd | Oldham | 2024 |
| Speedy Clear Ltd | Coventry | 2016 |
| Speedy Oils Ltd | London | 2025 |
| Speedy Removals Ltd | London | 2018 |
| Speedy Site Services Ltd | London | 2025 |
| Speedy Skip Hire Limited | Caithness | 1983 |
| Speedy Skips Ltd | Harrow | 2012 |
| Speedy Waste Clearances Ltd | Coalville | 2023 |
| Speedy Wasters Ltd | Dagenham | 2020 |
| Speedyclearance Limited | Caterham | 2017 |
| Speedys Removal Ltd | London | 2026 |
| Speedytruck and Recovery Ltd | Milton Keynes | 2022 |
| Spelthorne Direct Services Limited | Staines-Upon-Thames | 2020 |
| Spencer Hoole (Upholstery) Limited | Preston | 1995 |
| Spencer Industrial (North Wales) Limited | Clwyd | 1971 |
| Spencer Recycling Ltd | Liverpool | 2018 |
| Spenic Recycling Ltd | Dursley, | 2024 |
| Spenyx Ltd | London | 2025 |
| SPH Industrial Services Limited | Oldbury | 2025 |
| Spic 'N' Span (NW) Ltd | Leyland | 2024 |
| Spice of India (Woking) Limited | Reigate | 2013 |
| Spill Supplies Ltd | Manchester | 2018 |