| Sekai Dentokan Bugei Renmei Limited | Arts & recreation | 2014 |
| Serendividend Ltd | Professional & scientific | 2025 |
| SG Pipeline Consultancy Limited | Professional & scientific | 2011 |
| Sherwood Park Limited | Construction | 1994 |
| Signet Healthcare Limited | Health & social care | 2003 |
| Signet Services Limited | Real estate | 2009 |
| Silo Enterprises Limited | Other services | 2022 |
| SKT Investments Limited | Financial services | 2022 |
| Solar Edge Solutions Limited | Construction | 2025 |
| Solarsense Limited | Professional & scientific | 1977 |
| Solarvizion Limited | Extraterritorial | 2016 |
| SPO FX Limited | Arts & recreation | 2025 |
| ST Roses Projects Limited | Health & social care | 2023 |
| Starveacres Property Limited | Real estate | 2024 |
| Sterling & Knight Limited | Professional & scientific | 2009 |
| Sumona Trading Limited | Wholesale & retail | 2017 |
| Surrey Property Auctions Limited | Administrative & support | 1994 |
| Swakeleys Limited | Real estate | 2020 |
| Talwar Repair Center Limited | Other services | 2020 |
| Techtee Ltd | Information & communication | 2017 |
| THE Fabric Care Co. Ltd | Wholesale & retail | 2007 |
| THE Lary Project | Other services | 2009 |
| THE ODD Jobbers Limited | Construction | 2016 |
| THE Pyramid Building Ltd | Real estate | 2003 |
| THE Sheq Leadership Group Limited | Professional & scientific | 2022 |
| THE World Dancesport Federation | Professional & scientific | 2002 |
| Theworldthewayiwantit Limited | Arts & recreation | 2015 |
| Think Outside the Square Limited | Professional & scientific | 2007 |
| This IS Thirsty Limited | Professional & scientific | 2020 |
| Timeless Carat Limited | Wholesale & retail | 2012 |
| Tmdc Investments Limited | Financial services | 2022 |
| Token House Retail Limited | Wholesale & retail | 2014 |
| TOM Mcevoy Consultancy Limited | Administrative & support | 2023 |
| Tour Commercial Limited | Professional & scientific | 2023 |
| Trade Wings Travel Ltd. | Administrative & support | 2006 |
| Tradewings (London) Limited | Administrative & support | 1994 |
| Truck Master Tipping Limited | Transport & logistics | 2006 |
| UK & Ireland Civil Engineering Limited | Extraterritorial | 2013 |
| Unique Glass & Glazing Limited | Construction | 2016 |
| Urbanfibre Limited | Construction | 2021 |
| Urbnfibre Holdings Limited | Construction | 2021 |
| Urbnfibre Limited | Construction | 2021 |
| Vmatix Trading Limited | Wholesale & retail | 2018 |
| W.O.P Utilities Limited | Construction | 2016 |
| Weheartfamily Ltd | Wholesale & retail | 2016 |
| Wheel Sport Limited | Wholesale & retail | 1972 |
| Willowpine Developments Ltd. | Real estate | 2000 |
| Winkley Street Ltd | Professional & scientific | 2004 |
| Womersley Road Limited | Professional & scientific | 2009 |
| Wraith Traviss Ltd | Hospitality | 2016 |
| Wwmc Estates Limited | Real estate | 2025 |
| Ziko Media Limited | Professional & scientific | 2009 |