| Woodnote Bespoke Ltd | Construction | 2022 |
| Woodology Ltd | Wholesale & retail | 2025 |
| Woodside Horizons Ltd | Health & social care | 2025 |
| Woodson Manufacturing Limited | Manufacturing | 2013 |
| Woodsworth Exploring Ltd | Wholesale & retail | 2021 |
| Woodsworth Managing Ltd | Agriculture & fishing | 2022 |
| Wooler Properties Limited | Construction | 2021 |
| Workersbank International Ltd | Administrative & support | 2020 |
| Workersbank Ltd | Administrative & support | 2020 |
| World Bini Association | Education | 2021 |
| Wormald Electrical Limited | Wholesale & retail | 1962 |
| Worth Decor Limited | Construction | 2025 |
| Worth Livin Limited | Households | 2019 |
| Worth Property Solutions Ltd | Households | 2024 |
| Worth Testing Limited | Other services | 2017 |
| Worth Valley Antiques Centre Ltd | Wholesale & retail | 2023 |
| Worth Valley Bodyshop Ltd | Wholesale & retail | 2025 |
| Worth Valley Campervans Limited | Administrative & support | 2018 |
| Worth Valley Cars Ltd | Wholesale & retail | 2024 |
| Worth Valley Motor Group Ltd | Wholesale & retail | 2025 |
| Worth Valley Private Day Nursery Limited | Education | 2013 |
| Worth Valley Properties Ltd | Real estate | 2025 |
| Worth Valley Publishing Limited | Information & communication | 2006 |
| Worth Valley Trading Ltd | Wholesale & retail | 2014 |
| Worth Valley Water Works Limited | Manufacturing | 2025 |
| Worth Way Coatings Limited | Manufacturing | 2005 |
| Worthington Homes Limited | Real estate | 2006 |
| Worthside Holdings Limited | Information & communication | 1986 |
| Worthside Motors Ltd | Wholesale & retail | 2025 |
| Worthway Auto Centre Limited | Wholesale & retail | 2003 |
| WV Logs Local Ltd | Agriculture & fishing | 2025 |
| Wysocki Design Ltd | Professional & scientific | 2021 |
| Xenon Group Limited | Wholesale & retail | 2025 |
| Xpressions Ltd | Wholesale & retail | 2026 |
| Yakka Baby Ltd | Real estate | 2024 |
| YAM Property Consulting Limited | Real estate | 2020 |
| Yamagin Foods Ltd | Hospitality | 2026 |
| Yano CHA Keighley Limited | Wholesale & retail | 2024 |
| Yaqoobiah Education & Welfare Trust | Education | 2013 |
| Yard Leisure Ltd | Arts & recreation | 2026 |
| Yarn Consult Ltd | Wholesale & retail | 2024 |
| Yarn World (UK) Limited | Wholesale & retail | 2020 |
| Yates Media Ltd | Administrative & support | 2012 |
| Yellow & Grey Ltd | Wholesale & retail | 2024 |
| Yellow Line Limited | Transport & logistics | 2020 |
| YES Mortgage Solutions Limited | Financial services | 2013 |
| Yesteryear Coaches Ltd | Transport & logistics | 2023 |
| YG International Limited | Wholesale & retail | 2017 |
| YJ22 Ltd | Real estate | 2022 |
| YK Auto Tech Ltd | Wholesale & retail | 2025 |
| Yogi's Tyres Limited | Wholesale & retail | 2016 |
| Yondhill Limited | Real estate | 1982 |
| Yorgreen CIC | Agriculture & fishing | 2015 |
| Yorkdale Properties Limited | Real estate | 1987 |
| Yorkshire Aluminium Systems Limited | Construction | 2019 |
| Yorkshire Asset Management Limited | Real estate | 2003 |
| Yorkshire Awnings Ltd | Wholesale & retail | 2020 |
| Yorkshire Business Consultants Ltd | Professional & scientific | 2017 |
| Yorkshire Cat Rescue (Trading Enterprises) Limited | Wholesale & retail | 2011 |
| Yorkshire Clearances Limited | Transport & logistics | 2014 |
| Yorkshire Comp Doors Limited | Manufacturing | 2025 |
| Yorkshire Dales Flooring Limited | Construction | 2024 |
| Yorkshire Dales Railway Museum Trust (Holdings) Limited | Professional & scientific | 1979 |
| Yorkshire Door Panels Limited | Manufacturing | 2023 |
| Yorkshire Hybrid Cars Limited | Wholesale & retail | 2020 |
| Yorkshire Icon Fruit Suppliers Limited | Wholesale & retail | 2012 |
| Yorkshire International Educational Services Ltd | Education | 2019 |
| Yorkshire Medical Providers Limited | Health & social care | 2010 |
| Yorkshire Motor Vault Ltd | Transport & logistics | 2025 |
| Yorkshire Precision Engineering Holdings Limited | Financial services | 2015 |
| Yorkshire Precision Engineering Limited | Manufacturing | 2001 |
| Yorkshire Pro Float Limited | Construction | 2021 |
| Yorkshire Pro North Ltd | Administrative & support | 2025 |
| Yorkshire Solicitors Ltd | Professional & scientific | 2021 |
| Yorkshire Swim Works C.I.C. | Professional & scientific | 2021 |
| Yorkshire Tent Co. Ltd | Wholesale & retail | 2025 |
| Yorkshire Times Limited | Information & communication | 2012 |
| Yorkshire VAG Solutions Limited | Information & communication | 2022 |
| Yorkshire WAV Sales Limited | Wholesale & retail | 2026 |
| Yorkshiregardeningco Ltd | Professional & scientific | 2021 |
| Young Ventures Ltd | Administrative & support | 2017 |
| Your MI Partnership Ltd | Information & communication | 2011 |
| YPE Holdings Ltd | Financial services | 2021 |
| Z I Optical Ltd | Wholesale & retail | 2025 |
| Zachariah Limited | Professional & scientific | 2020 |
| Zahras Keighley Ltd | Wholesale & retail | 2022 |
| Zak's Automotive Limited | Wholesale & retail | 2025 |
| Zakia Absolute Solutions Ltd | Wholesale & retail | 2024 |
| Zaks Motor Group Limited | Wholesale & retail | 2023 |
| Zaman Foods Ltd | Wholesale & retail | 2019 |
| Zarif Consulting Limited | Professional & scientific | 2022 |
| Zaybra Group Limited | Health & social care | 2018 |
| Zaybrah Holdings Ltd | Financial services | 2023 |
| Zaybrah Properties Limited | Real estate | 2022 |
| Zayd Al-Ghani Consultancy Limited | Information & communication | 2025 |
| Zayhas Limited | Information & communication | 2014 |
| Zdbsolutions Ltd | Other services | 2021 |
| ZEB Fitness Limited | Arts & recreation | 2024 |
| ZED Surveys Ltd | Professional & scientific | 2023 |
| Zedd Interiors Ltd | Administrative & support | 2023 |