| TOG 24 Limited | Wholesale & retail | 2007 |
| Total Travel (Brighouse) Limited | Administrative & support | 2024 |
| Total Travel (Ossett) Limited | Administrative & support | 2024 |
| Total Travel Ltd | Administrative & support | 2013 |
| Tour Passes Limited | Extraterritorial | 2011 |
| Trans-Plant Services Limited | Transport & logistics | 2019 |
| TRI Trading Limited | Manufacturing | 2021 |
| Triangle Aesthetics Ltd | Health & social care | 2022 |
| Trulyfe Limited | Wholesale & retail | 2020 |
| Trupharm Limited | Wholesale & retail | 2021 |
| Trussplus Timber Systems Ltd | Manufacturing | 2026 |
| U & a Beds Ltd | Transport & logistics | 2019 |
| U & a Supplies Ltd | Wholesale & retail | 2021 |
| Ulhaq Couriers Ltd | Transport & logistics | 2026 |
| UMV Ltd | Information & communication | 2024 |
| US Beds Limited | Wholesale & retail | 2025 |
| Veteran Vehicle Styling Ltd | Wholesale & retail | 2024 |
| VFM Coatings Limited | Manufacturing | 2008 |
| Videcon Holdings Limited | Financial services | 2015 |
| Videcon Ltd | Wholesale & retail | 1995 |
| Vital Response Training Ltd | Education | 2024 |
| Vitoriaa Ltd | Wholesale & retail | 2019 |
| Wakefield Acoustics Limited | Manufacturing | 1980 |
| WAM Surveying Ltd | Professional & scientific | 2025 |
| Watch Wise UK Ltd | Administrative & support | 2004 |
| WBN Services Limited | Administrative & support | 2025 |
| WD HGV Commercials Ltd | Wholesale & retail | 2018 |
| Wellington Unit Limited | Manufacturing | 2016 |
| West Mini Market Plus Ltd | Wholesale & retail | 2025 |
| West Yorkshire Hire Ltd | Administrative & support | 2025 |
| West Yorkshire Housing CIC | Real estate | 2025 |
| Where the Little Ones Play Limited | Arts & recreation | 2025 |
| Whicken Properties Limited | Real estate | 2025 |
| WHY NOT Cafe Ltd | Hospitality | 2024 |
| Williams Automotive Engineering Ltd | Wholesale & retail | 2013 |
| Wood Flow Ltd | Wholesale & retail | 2024 |
| Woodland Fitout, Events & Exhibitions Private Limited | Manufacturing | 2025 |
| Xmerge Limited | Wholesale & retail | 2026 |
| Y.M Automobilia Ltd | Wholesale & retail | 2023 |
| YEP Travel Ltd | Transport & logistics | 2019 |
| York Travels Limited | Transport & logistics | 2024 |
| Yorkshire Auto Electrical Solutions Ltd | Other services | 2025 |
| Yorkshire Machine Sales Ltd | Wholesale & retail | 2025 |
| Your Decor Limited | Wholesale & retail | 2022 |
| Your Local (Yorkshire) Ltd | Information & communication | 2025 |
| Your Private Midwife Ltd | Public administration | 2023 |
| YZR Group Ltd | Financial services | 2025 |
| ZAC Consultants Limited | Administrative & support | 2017 |
| Zayfa Retail UK Ltd | Wholesale & retail | 2026 |
| Zedess Investments Ltd | Financial services | 2021 |
| Zedkay Limited | Households | 2016 |
| Zest TM Ltd | Real estate | 2019 |
| Zestyfood Limited | Hospitality | 2024 |
| Zham Ltd | Other services | 2023 |
| Ziddy Beds Ltd | Wholesale & retail | 2026 |
| ZSS Properties Ltd | Real estate | 2025 |