| Sabihs Limited | Health & social care | 2016 |
| Saccreck Ltd | Administrative & support | 2019 |
| Safeline Environmental Limited | Water & waste | 2006 |
| Safeline Properties Ltd | Real estate | 2021 |
| Safeline Waste Limited | Water & waste | 2022 |
| Safer Options Limited | Wholesale & retail | 2010 |
| Saferair Limited | Administrative & support | 2015 |
| Sagaro Limited | Transport & logistics | 2023 |
| Sage Empire Services Ltd | Hospitality | 2025 |
| Saint Peters Court Droitwich (Management) Limited | Extraterritorial | 1989 |
| Salwa Health Academy Ltd | Information & communication | 2022 |
| SAM Stores Limited | Wholesale & retail | 2015 |
| Sammy Southall Photography Ltd | Professional & scientific | 2008 |
| Samuel Lloyd Mouldings Limited | Manufacturing | 2023 |
| Samuel Stuart Limited | Construction | 2013 |
| Sanctuary Counselling Services Ltd | Health & social care | 2019 |
| Sandair Ltd | Construction | 2012 |
| Sandy Hollow Management Company Limited | Households | 2002 |
| Sanghera Property Holdings Ltd | Real estate | 2018 |
| Sanghera Property Investment Ltd | Real estate | 2022 |
| Sant & Co Limited | Real estate | 2014 |
| Santomotors Ltd | Wholesale & retail | 2025 |
| Saporito Electrical Ltd | Construction | 2021 |
| Sarhu Ltd | Administrative & support | 2022 |
| Satec Tooling Ltd | Wholesale & retail | 2022 |
| Sateding Ltd | Wholesale & retail | 2024 |
| Saville Construction (Worcs.) Limited | Construction | 2021 |
| SAY Coffee Espresso Ltd | Wholesale & retail | 2020 |
| Sazmerf Ltd | Transport & logistics | 2024 |
| SB Commercial Breakdown Ltd | Wholesale & retail | 2022 |
| SB Plumbing & Heating Solutions Ltd | Construction | 2023 |
| SBC Supplies Limited | Construction | 2026 |
| SC Furniture Limited | Wholesale & retail | 2005 |
| SC Security Solutions Limited | Manufacturing | 2012 |
| Scale UP Sales and Marketing Services Limited | Professional & scientific | 2023 |
| Scaltre Limited | Professional & scientific | 2018 |
| Scattermedia Limited | Information & communication | 2015 |
| SCD Portfolio Limited | Construction | 2016 |
| SCD UK Group Limited | Wholesale & retail | 2015 |
| Scfp LLP | | 2025 |
| Schofield Fabrications Holdings Limited | Administrative & support | 1999 |
| Schofield Property Developments Limited | Construction | 1999 |
| Schools and Early Education Development Services Ltd | Education | 2014 |
| Schunqwerks Composite Technologies Ltd | Manufacturing | 2024 |
| SCN Vehicle Repairs Limited | Wholesale & retail | 2003 |
| Scotforth Ltd | Transport & logistics | 2022 |
| Scott Longmuir Ltd | Transport & logistics | 2022 |
| Scotts Couriers Ltd | Transport & logistics | 2025 |
| Scotts of Norton Limited | Agriculture & fishing | 2010 |
| Scrap Car Price Ltd | Professional & scientific | 2025 |
| Scribherd Ltd | Transport & logistics | 2024 |
| Scrocca Construction Management Limited | Financial services | 2019 |
| SD Waste Management Ltd | Water & waste | 2022 |
| SDR Electrical Installation and Design Limited | Professional & scientific | 2014 |
| Seal Holdings Ltd | Extraterritorial | 2020 |
| Seama (Europe) Co Ltd | Wholesale & retail | 2005 |
| Sebright Electrical Limited | Construction | 2003 |
| Secondbagpipe Ltd | Administrative & support | 2019 |
| Sectoradvance Property Management Limited | Households | 1987 |
| Security Solutions (Midlands) Limited | Administrative & support | 2003 |
| Seigostiaca Ltd | Transport & logistics | 2019 |
| Self Love Cleobury Ltd | Other services | 2024 |
| Self Made Hustlers Ltd | Wholesale & retail | 2024 |
| Selfluencer Ltd | Professional & scientific | 2026 |
| Sellersykes Ltd | Wholesale & retail | 2021 |
| Sello Products UK PTY Limited | Wholesale & retail | 2023 |
| Senegrel Ltd | Transport & logistics | 2024 |
| Seonmear Ltd | Administrative & support | 2024 |
| Sepgelin Ltd | Transport & logistics | 2021 |
| Seraphora Ltd | Wholesale & retail | 2025 |
| Serenitycrystal Ltd | Transport & logistics | 2019 |
| Serpemore Ltd | Construction | 2024 |
| Servagroup Limited | Manufacturing | 2021 |
| Service and Solutions Ltd | Professional & scientific | 2019 |
| Sessions Meat Supplies Limited | Manufacturing | 1978 |
| Sessions Property Holdings Limited | Manufacturing | 2013 |
| Seton Precision Engineering Limited | Manufacturing | 2010 |
| Sevenoaks Gardening Services Ltd | Professional & scientific | 2005 |
| Seventh Gate Limited | Wholesale & retail | 2023 |
| Severn Asbestos Removal Ltd | Water & waste | 2022 |
| Severn Automotive Limited | Wholesale & retail | 2026 |
| Severn Biotech Limited | Manufacturing | 1989 |
| Severn Bore Ltd. | Administrative & support | 2020 |
| Severn Bore Piling Limited | Construction | 1984 |
| Severn Group Holdings Limited | Financial services | 2026 |
| Severn Land Management Company Limited | Households | 2024 |
| Severn Motor Cars Limited | Wholesale & retail | 2021 |
| Severn Oaks Limited | Financial services | 2021 |
| Severn Professional Mortgage Solutions Ltd | Financial services | 2018 |
| Severn Tree Management Ltd | Administrative & support | 2021 |
| Severn Vale Windows Doors and Conservatories Limited | Construction | 2010 |
| Severn Valley Carpet and Flooring Limited | Wholesale & retail | 2024 |
| Severn Valley Fasteners Ltd | Wholesale & retail | 2006 |
| Severn Valley Railway Charitable Trust Limited | Administrative & support | 2001 |
| Severn Valley Railway Company Limited | Other services | 1967 |
| Severn Valley Railway Enterprises Limited | Manufacturing | 2026 |
| Severn Ventilation Limited | Construction | 1975 |
| Severndale Electrical Limited | Construction | 2022 |
| Severnside Mill Management Company Limited | Households | 1990 |
| Severnside Social Club Ltd | Hospitality | 2025 |