| Sage Cleaning Ltd | Other services | 2024 |
| Secatherm UK Limited | Professional & scientific | 2012 |
| Sharma Investments Limited | Real estate | 2010 |
| Sona Investments Leicester Ltd | Real estate | 2018 |
| Sona Solicitors Ltd | Professional & scientific | 2012 |
| Spiraltech Management Limited | Manufacturing | 2021 |
| Style FAB Ltd | Manufacturing | 2007 |
| T.L. Williams (Roofing Contractors) Limited | Wholesale & retail | 1974 |
| Talking Walls Ltd | Extraterritorial | 2021 |
| THE Business Builder Academy Ltd | Administrative & support | 2026 |
| THE Canine Grooming Studio Ltd | Other services | 2023 |
| THE Hearing Centre Group Ltd | Wholesale & retail | 2020 |
| THE Learning Post Limited | Education | 2025 |
| Towles P L C | Manufacturing | 1928 |
| Transalloy Wheels Limited | Wholesale & retail | 2020 |
| Trinity Property Services and Management Ltd | Construction | 2019 |
| TWS Haulage Ltd | Transport & logistics | 2018 |
| United Corporate Event Solutions Ltd | Administrative & support | 2024 |
| United Event Production Ltd | Administrative & support | 2012 |
| Viper Recruitment Solutions Ltd | Administrative & support | 2024 |
| Walls of Glass Limited | Construction | 2017 |
| WC Pipe Works Ltd | Manufacturing | 2025 |
| WE ADD WOW! Ltd | Arts & recreation | 2015 |
| West Riding Property Services Limited | Real estate | 2025 |
| West Yorkshire Subaru Parts Limited | Wholesale & retail | 2013 |
| Westcot Tractors Ltd | Manufacturing | 2021 |
| White Rose Leisure (Yorkshire) Limited | Arts & recreation | 2001 |
| Xrsolutions Limited | Information & communication | 2010 |
| Yorkshire Podcast Studios (Yorkshire) Ltd | Information & communication | 2023 |
| Yorkshire Podcast Studios LLP | | 2019 |