| Salcombe Quays Limited | Professional & scientific | 2023 |
| Shire Systems Limited | Information & communication | 1982 |
| Silk Taverns Ltd | Hospitality | 2024 |
| Slobber and Chops Ltd | Other services | 2023 |
| Spark Success Ltd | Real estate | 2024 |
| Spectra Entertainment Ltd | Hospitality | 2023 |
| Steve Stretton Creative Consultant Ltd | Administrative & support | 2014 |
| Stonor Search & Selection Limited | Administrative & support | 2001 |
| Stranks Investments and Property Finance Ltd | Construction | 2024 |
| Stranks Strategic Land Acquisitions Ltd | Real estate | 2021 |
| Sustainability Business Solutions Ltd | Professional & scientific | 2016 |
| Technology Quintessentials Ltd. | Information & communication | 2015 |
| Thame Aerials Ltd | Construction | 2026 |
| THE Black Room Ltd | Arts & recreation | 2024 |
| THE Midnight JAM Company Limited | Hospitality | 2022 |
| Towertree Limited | Financial services | 2006 |
| Travel Expo 365 Limited | Administrative & support | 2018 |
| Tresl Education Ltd | Education | 2022 |
| Unite Personal Training Gym Ltd | Arts & recreation | 2023 |
| Universe Works Ltd | Information & communication | 2014 |
| W.G.Binder Limited | Real estate | 1961 |
| Watermark P.H.S. Limited | Wholesale & retail | 1989 |
| Webster Homes (Southern) Limited | Extraterritorial | 1987 |
| Webster Properties Limited | Extraterritorial | 1981 |
| Welch Plumbing & Utilities Ltd | Construction | 2023 |
| Whiteline Motorcycles Limited | Administrative & support | 2024 |
| Zeli Images Ltd | Professional & scientific | 2018 |