| T & B Properties (Yorkshire) LLP | | 2016 |
| T&B Properties (Management) Limited | Real estate | 2016 |
| T&P Residential Ltd | Real estate | 2025 |
| Team KJR Ltd | Professional & scientific | 2013 |
| Telo Electrical and Renewable Services Limited | Construction | 2025 |
| Temptations WF11 Ltd | Hospitality | 2025 |
| Thaal (Knottingley) Limited | Hospitality | 2016 |
| THE Concrete Radiator Company Ltd | Manufacturing | 2022 |
| THE Education Exchange Limited | Extraterritorial | 2020 |
| THE Global Treasurer Limited | Professional & scientific | 2022 |
| THE Green Partnership Ltd | Administrative & support | 2016 |
| THE LED Shed Limited | Administrative & support | 2013 |
| THE New Huscrofts (Catering) Limited | Hospitality | 2024 |
| THE New Huscrofts Ltd | Hospitality | 2021 |
| THE Old Quarry Adventure Playground Ltd | Administrative & support | 2009 |
| THE Poured Project Ltd | Manufacturing | 2018 |
| THE Railway Club Ltd. | Other services | 2024 |
| THE Railway Shop Limited | Wholesale & retail | 2015 |
| THE Ruchee Restaurant Ltd | Hospitality | 2024 |
| THE Trainer Smith Ltd | Administrative & support | 2025 |
| Thirteen Transport Ltd | Transport & logistics | 2021 |
| Thorpe Brothers Limited | Manufacturing | 2003 |
| Three Colour Films Ltd | Information & communication | 2021 |
| Three Create Limited | Manufacturing | 2014 |
| TIM Baker Property Development Limited | Real estate | 2019 |
| Timeitright Limited | Hospitality | 1997 |
| Tmcdatanetwork Ltd | Construction | 2026 |
| Tonnesen Holdings Ltd | Financial services | 2020 |
| Tonnesen Property Ltd | Real estate | 2024 |
| Trade & Scale Limited | Information & communication | 2026 |
| Trans-Fix Commercials Limited | Manufacturing | 2012 |
| Trans-Freight Limited | Transport & logistics | 2017 |
| Translift Freight Limited | Transport & logistics | 1937 |
| Transport Surveys Ltd | Professional & scientific | 2006 |
| Transport-Mill Ltd | Transport & logistics | 2025 |
| Truecart Enterprises Limited | Wholesale & retail | 2026 |
| TS Pipework Limited | Construction | 2006 |
| TSL Plus Ltd | Administrative & support | 2022 |
| TSP Rentals Ltd | Hospitality | 2024 |
| UK Property Developments Ltd | Construction | 2018 |
| Unique Developments Limited | Construction | 1992 |
| Unity Darts Organisation Ltd | Arts & recreation | 2025 |
| Vadim Transport Ltd | Wholesale & retail | 2015 |
| Vamsi Garage Ltd | Wholesale & retail | 2026 |
| Vessys Ltd | Hospitality | 2025 |
| W Lucky Star Limited | Hospitality | 2021 |
| WAB Enterprise Limited | Manufacturing | 2017 |
| WASTE2GREENFUEL Ltd | Water & waste | 2024 |
| Webster's Health and Safety Solutions Limited | Administrative & support | 2017 |
| Went Vale Electrical Ltd | Wholesale & retail | 2011 |
| Wentvale Court Limited | Hospitality | 2004 |
| Whittles Transport Limited | Transport & logistics | 2002 |
| Wise FOX Properties Ltd | Real estate | 2023 |
| Wise FOX Solutions Ltd | Professional & scientific | 2025 |
| Wolantrans Ltd | Transport & logistics | 2017 |
| Woodlea 1972 Limited | Extraterritorial | 2013 |
| Woolford Estates Ltd | Real estate | 2025 |
| WS DIY Ltd | Wholesale & retail | 2024 |
| Wura Vision Limited | Professional & scientific | 2022 |
| Xpert Software Ltd | Information & communication | 2011 |
| Yorkshire Infant Feeding/Tongue TIE Services Ltd | Health & social care | 2025 |
| Yorkshire Lets Ltd | Real estate | 2026 |
| Yorkshire Roast Coffee Limited | Manufacturing | 2024 |
| Yorkshire Van and Commercial Ltd | Manufacturing | 2012 |
| Yorkshire Ventilation Systems Limited | Construction | 2005 |
| Your Store Food Ltd | Wholesale & retail | 2025 |
| Zora Africa Limited | Wholesale & retail | 2026 |