| Sauce Media Ltd | Administrative & support | 2016 |
| SHED66 Limited | Information & communication | 2017 |
| Sjaak Van DER Vyver Limited | Wholesale & retail | 1991 |
| SJJ Transport Ltd | Transport & logistics | 2026 |
| Skyborry Cider and Perry L.P. | | 2012 |
| Slater Bros. (Motor-Cycles) Limited | Wholesale & retail | 1981 |
| Smart Waxes Ltd | Manufacturing | 2015 |
| Smarter Stable Supplies Ltd | Manufacturing | 2015 |
| Smarterwax Ltd | Manufacturing | 2015 |
| Space Mobiles Limited | Administrative & support | 2003 |
| Spotty Dog Tea Rooms Limited | Hospitality | 2011 |
| Steele Retailers Limited | Wholesale & retail | 2024 |
| STJ Paddock Maintenance & Groundcare Ltd | Construction | 2015 |
| Stonebridge Consultancy Services Limited | Information & communication | 2023 |
| T.D. Bird Ltd | Transport & logistics | 2013 |
| Tansy Pullets Limited | Agriculture & fishing | 2018 |
| THE Clun LOG Company Ltd | Agriculture & fishing | 2024 |
| THE Fate Group Limited | Arts & recreation | 2023 |
| THE Plant Centre Limited | Wholesale & retail | 2010 |
| Thomas Farming Limited | Agriculture & fishing | 2012 |
| Thomason Consulting Limited | Professional & scientific | 2007 |
| Treeperspectives Ltd | Professional & scientific | 2024 |
| Trefy Panthers Limited | Arts & recreation | 2025 |
| Tried and Trusted Builders Limited | Construction | 2009 |
| TY Cerrig Christmas Tree Farm Limited | Agriculture & fishing | 2013 |
| TY Cerrig Woodland Retreats Limited | Hospitality | 2014 |
| Universal Observatory Limited | Education | 2001 |
| Vitality Vitamin Vials Ltd | Wholesale & retail | 2024 |
| Welsh Shepherd Spirits Limited | Manufacturing | 2012 |
| Woods Cotswold Gardens Ltd | Administrative & support | 2025 |
| Wright Property Solutions Ltd | Real estate | 2021 |
| Xander Management Associates Limited | Professional & scientific | 1988 |
| Yorick Ltd | Information & communication | 2023 |