| With Love From York Ltd | Wholesale & retail | 2025 |
| Wolf Hydraulics Ltd | Manufacturing | 2018 |
| Wolf Medical Ltd | Education | 2023 |
| Wombwell Community Sports Ltd | Education | 2019 |
| Woodhead Transport Ltd | Transport & logistics | 2022 |
| Woodstock Transport Limited | Transport & logistics | 2000 |
| Woodys Model Works Ltd | Manufacturing | 2023 |
| Work IT App Ltd | Administrative & support | 2018 |
| Worker BEE UK Limited | Information & communication | 2020 |
| World of Furniture Ltd | Wholesale & retail | 2024 |
| WOW Cards Limited | Extraterritorial | 2012 |
| Wray & SON (Selby) Limited | Real estate | 1964 |
| Wren Hall Limited | Agriculture & fishing | 2023 |
| Xoassa Ltd | Professional & scientific | 2023 |
| Xpert Investing Ltd | Real estate | 2025 |
| Xpert IT Services Limited | Information & communication | 2005 |
| Y Coffee Holdings Limited | Financial services | 2025 |
| YB Hair Studio Ltd | Other services | 2024 |
| Yearl Music Limited | Financial services | 2021 |
| Yellowtop Limited | Administrative & support | 1994 |
| YGT Selby Ltd | Hospitality | 2026 |
| YO8 Construction Ltd | Construction | 2025 |
| YO8 Design Limited | Professional & scientific | 2016 |
| Yoap Ltd | Other services | 2024 |
| Yolo Enterprises Ltd | Real estate | 2020 |
| YOR Automotive Solutions Ltd | Wholesale & retail | 2024 |
| York Gaming Limited | Extraterritorial | 2020 |
| York Motor Club Limited | Arts & recreation | 1978 |
| York Sound Ltd | Information & communication | 2020 |
| York South Limited | Hospitality | 2017 |
| Yorks Law Limited | Professional & scientific | 2020 |
| Yorkshire Aero Spares Limited | Wholesale & retail | 2025 |
| Yorkshire Auto Care Ltd | Manufacturing | 2007 |
| Yorkshire Autocentres Ltd | Wholesale & retail | 2025 |
| Yorkshire Automotive Projects Ltd | Wholesale & retail | 2021 |
| Yorkshire Bookkeeping Limited | Professional & scientific | 2018 |
| Yorkshire Commercial Interiors Limited | Construction | 2017 |
| Yorkshire Haulage Ltd | Transport & logistics | 2022 |
| Yorkshire Heritage Inns Limited | Hospitality | 2026 |
| Yorkshire Hygiene Supplies Ltd | Wholesale & retail | 2010 |
| Yorkshire Land Rover Hub Limited | Wholesale & retail | 2025 |
| Yorkshire Leisure Training Ltd | Education | 2026 |
| Yorkshire Lofts Ltd | Construction | 2026 |
| Yorkshire Mobile Detailing Ltd | Administrative & support | 2025 |
| Yorkshire Patios and Driveways Limited | Administrative & support | 2022 |
| Yorkshire Pro Window Cleaning Ltd | Administrative & support | 2021 |
| Yorkshire Smiles Limited | Health & social care | 2012 |
| Yorkshire Worms Ltd | Wholesale & retail | 2014 |
| YRA Ltd | Construction | 2014 |
| ZAD Logistics Ltd | Transport & logistics | 2022 |
| Zebra Haulage Limited | Extraterritorial | 2012 |
| Zenith Management Consultancy Limited | Administrative & support | 2025 |
| ZOO Management Limited | Arts & recreation | 2010 |
| ZOO Property Limited | Real estate | 2012 |
| Zoobu Limited | Information & communication | 2012 |
| Zoom 2621 Limited | Hospitality | 2026 |
| Zuzu (Yorkshire) Limited | Hospitality | 2020 |
| Zynp Selby Ltd | Hospitality | 2026 |