| Super Mario Drains Ltd | Birmingham | 2023 |
| Super R Limited | Norwich | 2021 |
| Super Skip Hire Ltd | Brentwood | 2021 |
| Super Skipps Ltd | Birmingham | 2015 |
| Super Skips Hire Ltd | Stourbridge | 2026 |
| Super Speed Removals Ltd | Manchester | 2024 |
| Superefficient Maintenance Ltd | London | 2022 |
| Superfix Group Ltd | London | 2020 |
| Superior Contractors Ltd | London | 2026 |
| Supernova Services Limited | London | 2026 |
| Supernova.Pmc Ltd | London | 2021 |
| Supertive Waste Collection Limited | Crawley | 2026 |
| Supply Chains Limited | South Molton | 2003 |
| Supra Steering and Suspension Limited | Bermuda Road, | 1941 |
| Supreme Drainage & Plumbing Ltd | Cleckheaton | 2019 |
| Supreme Oils Ltd | Gillingham | 2022 |
| Supreme Waste Removal Services Ltd | Plymouth | 2025 |
| Supreme Waste Solutions Limited | Thornton Heath | 2025 |
| Sure Comfort Limited | Barking | 2010 |
| Sure Drainage Solutions Ltd | Leeds | 2023 |
| Sure Recycling Ltd | Uxbridge | 2026 |
| Sure Waste and Recycling Ltd | Manchester | 2020 |
| Sureflow (2023) Ltd | Old Hatfield | 2023 |
| Surewaters Limited | London | 2019 |
| Surf Haulage Ltd | Sheerness | 2021 |
| Surfaces R US Limited | Rugby | 2017 |
| Surfwheel Limited | Sunderland | 1991 |
| Surrey & Middlesex Metal Recycling Limited | Chobham | 2019 |
| Surrey Asbestos Surveys and Removals Ltd | Leatherhead | 2020 |
| Surrey Clearance Services Ltd | Sunbury On Thames | 2019 |
| Surrey County Skips Ltd | Swanley | 2012 |
| Surrey Green Waste Limited | Lingfield | 2007 |
| Surrey Hills Grab Service Ltd | Middlesex | 2002 |
| Surrey Loos Ltd | Woking | 2021 |
| Surrey Skip-Bag Services Ltd | Dorking | 2011 |
| Surrey Soils Limited | Lingfield | 2007 |
| Surrey Waste Management Limited | Mitcham | 2014 |
| Surrey Water Treatment Limited | Dorking | 1997 |
| Survey Safe Limited | Colchester | 2011 |
| Surveys & Service Ltd | Dudley | 2025 |
| Suspath International (UK) Ltd | Dartford | 2017 |
| Suspath UK Ltd | Dartford | 2010 |
| Sussex ACM Solutions Ltd | Hove | 2020 |
| Sussex Asbestos Solutions Ltd | Brighton | 2026 |
| Sussex Drain Ltd | London | 2026 |
| Sussex Grab Services Ltd | Brighton | 2026 |
| Sussex Pure Water Ltd | Peacehaven | 2023 |
| Sussex Scrap Ltd | Brighton | 2025 |
| Sussex Waste Solutions Ltd | Crawley | 2025 |
| Sussex Water Mains Limited | Worthing | 2015 |
| Sussex Water Mains Services Limited | Worthing | 2016 |
| Sust-N Limited | Maidstone | 2010 |
| Sustain Cotswolds CIC | Tetbury | 2025 |
| Sustain Recycling Ltd | Northampton | 2021 |
| Sustainability Fife Limited | Glenrothes | 2013 |
| Sustainable Aggregates Ltd | Newry | 2026 |
| Sustainable Drain Solutions Ltd | Ingatestone | 2026 |
| Sustainable Eco Energy Management Ltd | Sherborne | 2017 |
| Sustainable Eco Plastics Ltd | Wimborne | 2023 |
| Sustainable Energy Alternative Solutions Limited | Ascot | 2012 |
| Sustainable Friendly Fuels Limited | Warrington | 2021 |
| Sustainable Nutrition Academy C.I.C. | London | 2021 |
| Sustainable Transactions Ltd | Croydon | 1993 |
| Sustainable Waste Services Limited | Godalming | 2012 |
| Sustainable Waste Solutions Limited | Cardiff | 2021 |
| Sustainable Water Innovations Ltd | Lincoln | 2024 |
| Sustenta IT Limited | Telford | 2017 |
| Sutherland Waste Management Limited | Doncaster | 2019 |
| Sutton and East Surrey Water PLC | Surrey | 1989 |
| Sutton and East Surrey Water Services Limited | Surrey | 1989 |
| Suttons Auto Salvage Ltd | Cardiff | 2014 |
| Svanna Ltd | Ballyclare | 2022 |
| SVC Transport Ltd | London | 2013 |
| SVP International Ltd | London | 2000 |
| SW Drainage Solutions Ltd | Brentwood | 2015 |
| SW Food Waste Collection Ltd | Exeter | 2025 |
| SW Haulage & Recycling Limited | Croydon | 2025 |
| SW Recycling Limited | London | 2019 |
| SW Waste Management Ltd | Neath | 2021 |
| SW Waste Services Limited | Liverpool | 2019 |
| SW Waste Solutions Ltd | Teddington | 2024 |
| Swabys Rubbish Removal Ltd | Hull | 2025 |
| Swaddlers Limited | Essex | 1983 |
| Swadlincote Skip Hire Limited | Swadlincote | 2000 |
| Swan Construct Ltd | Wilmslow | 2024 |
| Swan Regal Limited | Todmorden | 1989 |
| Swan Song Serenity Ltd | Newtownabbey | 2024 |
| Swancote Energy Limited | Wolverhampton | 2010 |
| Swansea Corporation Ltd | Coventry | 2016 |
| Swansea Drain Services Limited | Shrewsbury | 2022 |
| Swansea Drains Limited | Swansea | 2011 |
| Swansea Recycling (Furniture) Ltd | Swansea | 2020 |
| Swansea Skiphire Ltd. | Swansea | 2025 |
| Swansea Skips Ltd | Swansea | 2008 |
| Swansea Softwash & Pressure Washing Ltd | Swansea | 2025 |
| SWD Lining Limited | Bromley | 2022 |
| Swds (Group) Ltd | Brentwood | 2015 |
| Swedisons Ltd | Sheffield | 2023 |
| Sweeep Kuusakoski Limited | Sittingbourne | 2006 |
| Sweet PEE Luxury Toilet Hire Limited | Lower Quinton | 2017 |