| Sterling Academy Limited | Professional & scientific | 2024 |
| Sterling Integrity Services Ltd | Other services | 2018 |
| Sterling Thermal Limited | Extraterritorial | 2026 |
| Sterling Thermal Technology Group Limited | Financial services | 2024 |
| Sterling Thermal Technology Limited | Manufacturing | 1977 |
| Sterling Thermal Technology Midco Limited | Financial services | 2015 |
| Sterlings Trade & Co Limited | Wholesale & retail | 2025 |
| Steve Bryan Utilities Services Limited | Professional & scientific | 2016 |
| Steve Fowler Consultancy Ltd | Professional & scientific | 2024 |
| Steve Fowler Limited | Real estate | 2015 |
| Steve Harris Construction Limited | Construction | 2010 |
| Steve Maybury Financial Planning Ltd | Financial services | 2024 |
| Steve's Toys 'N ' Tool Kits Ltd | Wholesale & retail | 2025 |
| Steven John Knapp Ltd | Extraterritorial | 2025 |
| Stevens & Cole Limited | Construction | 1960 |
| Stewart and Young Limited | Wholesale & retail | 1977 |
| Still Induction Holdings Limited | Financial services | 2023 |
| Stillwaters Escape Ltd | Hospitality | 2026 |
| Stimford Shopfitting and Maintenance Ltd | Construction | 2024 |
| Stinton C (WR1) RTM Company Limited | Households | 2024 |
| STL Logistics Limited | Transport & logistics | 2020 |
| Stms Group Ltd | Professional & scientific | 2020 |
| Stock Audit Services Ltd | Professional & scientific | 2021 |
| Stock N Lock Self Storage Limited | Transport & logistics | 2012 |
| Stockend Energy Limited | Agriculture & fishing | 2015 |
| Stocks House Management Limited | Households | 2026 |
| Stockton Business Consulting Ltd | Professional & scientific | 2019 |
| Stockwood (Inkberrow) Management Company Limited | Households | 2013 |
| Stone Venture Partners Limited | Administrative & support | 2010 |
| Stone VP (NO. 1) Limited | Financial services | 2017 |
| Stone VP (NO. 4) Limited | Administrative & support | 2015 |
| Stoneage Europe Group Limited | Manufacturing | 2016 |
| Stoneage Europe Limited | Wholesale & retail | 1997 |
| Stonecloud Properties Limited | Real estate | 2013 |
| Stonegrove Construction Limited | Construction | 2022 |
| Stonegrove Developments Ltd | Construction | 2024 |
| Stonemasons of Worcester Limited | Manufacturing | 2013 |
| Stonewell Systems Ltd | Information & communication | 2026 |
| Stoneworks Installations Ltd | Construction | 2022 |
| Stoneycroft Partnership LLP | | 2012 |
| Stop Service Ltd | Wholesale & retail | 2023 |
| STORAGE4STUDENTS Limited | Transport & logistics | 2013 |
| Storefront International Limited | Other services | 2019 |
| Stores Supply Group Limited | Transport & logistics | 2023 |
| Storm Auto Services Ltd | Wholesale & retail | 2021 |
| Storm Remote Services Ltd | Wholesale & retail | 2026 |
| Storm Transport & Agriculture Ltd | Agriculture & fishing | 2025 |
| Story Marketing UK Limited | Information & communication | 2025 |
| Storypinned Limited | Information & communication | 2019 |
| Stourport Nursing & Home Care Limited | Health & social care | 1993 |
| Stourport Sushi Limited | Wholesale & retail | 2025 |
| STR Socials Limited | Hospitality | 2025 |
| Straight Line Payroll Ltd | Professional & scientific | 2026 |
| Straight-Line Group Services Ltd | Construction | 2024 |
| Straight-Line Group Solutions Ltd | Administrative & support | 2026 |
| Strasse Autowerks Ltd | Wholesale & retail | 2022 |
| Strata Cycles Ltd | Manufacturing | 2026 |
| Strata Miniatures Ltd | Manufacturing | 2020 |
| Straw and Order Ltd | Manufacturing | 2014 |
| Strawa Ltd | Wholesale & retail | 2024 |
| Stream Inside Limited | Information & communication | 2013 |
| Streamhall Limited | Real estate | 2020 |
| Street Media Distribution Limited | Professional & scientific | 2013 |
| Strelitzia Consulting Ltd | Professional & scientific | 2020 |
| Strength Shack Ltd | Health & social care | 2020 |
| Strensham Court Mews Management Limited | Households | 1987 |
| String Digital Limited | Professional & scientific | 2019 |
| Stroller Holdings Ltd | Financial services | 2026 |
| Structek Plan and Design Ltd. | Administrative & support | 2007 |
| Stryder TV Limited | Information & communication | 2005 |
| Sttg (01) Limited | Manufacturing | 2025 |
| STU Hunt Ltd | Administrative & support | 2021 |
| Stuart Derbyshire Consulting Engineers Limited | Professional & scientific | 2005 |
| Stuart Lodge (Malvern Wells) Limited | Real estate | 2015 |
| Stucco Ltd | Construction | 2020 |
| Studio 30 Marketing Ltd | Professional & scientific | 2024 |
| Studio 444 by Exec Connective Limited | Information & communication | 2024 |
| Studio B - Performing Arts Centre Limited | Arts & recreation | 2015 |
| Studio Someday Ltd | Administrative & support | 2025 |
| Studley TAP House Ltd | Hospitality | 2023 |
| Sturman Consultancy Ltd | Professional & scientific | 2020 |
| Styles Automotive Consulting Ltd | Information & communication | 2015 |
| Styles Electrical Services Limited | Construction | 2008 |
| Styling Lounge Limited | Other services | 2023 |
| SUB Zero Clean Ltd | Wholesale & retail | 2024 |
| Subaru GRA Consultation Ltd | Information & communication | 2024 |
| Subtech Safety Limited | Manufacturing | 2000 |
| Success for Life Ltd | Wholesale & retail | 2020 |
| Suckley School | Education | 2011 |
| Suckling Waddington Limited | Extraterritorial | 2011 |
| Suds'N'Sons Limited | Administrative & support | 2021 |
| Sugar Daddy's Cafe C.I.C. | Hospitality | 2022 |
| Sugar Loaf Accountancy Services Limited | Professional & scientific | 2011 |
| Sugar Plum Tea Rooms Limited | Hospitality | 2022 |
| Sultanhub Ltd | Wholesale & retail | 2026 |
| Summed UP Limited | Professional & scientific | 2012 |
| Summerfield Industries Limited | Real estate | 1980 |
| Summerfield Property Worcester Limited | Real estate | 2013 |
| Summit Renovation Ltd | Construction | 2018 |
| Summitcool Monitoring Services Limited | Information & communication | 2013 |