| Woodall Estates Ltd | Construction | 2012 |
| Woodall Group Limited | Financial services | 2020 |
| Woodall Homes Limited | Construction | 2011 |
| Woodall Homes SMW Limited | Construction | 2019 |
| Woodheads (Chesterfield) Limited | Hospitality | 2021 |
| Woodheads (Eckington) Ltd | Hospitality | 2017 |
| Woodheath Care Limited | Health & social care | 2007 |
| Woodland Holdings Limited | Agriculture & fishing | 2024 |
| Woodland Motorhomes Ltd | Wholesale & retail | 2009 |
| Woodland Weighing Systems Limited | Manufacturing | 1989 |
| Woodland-Pours Ltd | Manufacturing | 2026 |
| Woodlands Inspire C.I.C. | Education | 2022 |
| Woodleigh Motor Sales Limited | Wholesale & retail | 1974 |
| Woodside Farm Agricultural Limited | Administrative & support | 2012 |
| Woodthorpe Farm Management Company Limited | Real estate | 2015 |
| Woodward Westley Ltd | Construction | 2024 |
| Wood’S Consultancy Group Limited | Administrative & support | 2017 |
| Workplace Safety & Compliance Solutions Ltd | Professional & scientific | 2024 |
| Worldwide Stones Holdings Limited | Wholesale & retail | 2018 |
| Worldwide Stones Limited | Wholesale & retail | 2010 |
| Wovenlore Ltd | Wholesale & retail | 2025 |
| Wowvacpro Ltd | Wholesale & retail | 2020 |
| WP Training Limited | Professional & scientific | 2023 |
| Wraparound Consultancy Limited | Public administration | 2023 |
| Wray & Co Enterprises Ltd | Wholesale & retail | 2021 |
| Wrigglesworth Limited | Information & communication | 2025 |
| Wright Construction (Clowne) Limited | Extraterritorial | 2012 |
| Wright Ward Limited | Real estate | 2025 |
| Wright Web Design Limited | Information & communication | 2024 |
| Wrights Maintenance Ltd | Construction | 2025 |
| WS Electrical Projects Limited | Construction | 2008 |
| WS Installation Services Limited | Construction | 2025 |
| WS Tanker Logistics Limited | Transport & logistics | 2017 |
| Wwgp Ltd | Administrative & support | 2023 |
| Wwmojo Limited | Real estate | 2023 |
| Wynberg Holdings Ltd | Households | 2026 |
| Wynex Global Holdings Limited | Financial services | 2025 |
| Wynford Homes Ltd | Construction | 1999 |
| Wynhub Ltd | Construction | 2022 |
| Wynn Business Services Ltd | Hospitality | 2012 |
| X-Press Digital Limited | Information & communication | 2000 |
| X10N Publishing Limited | Wholesale & retail | 2010 |
| Xcite Sports Limited | Wholesale & retail | 2011 |
| Xeli Events Limited | Arts & recreation | 2009 |
| Xeli Studios Limited | Professional & scientific | 2000 |
| Xena Properties (UK) Limited | Real estate | 2025 |
| Xiza Ltd | Information & communication | 2021 |
| Xofts Limited | Wholesale & retail | 2023 |
| Xomalls Limited | Information & communication | 2026 |
| Xpedrisk Ltd | Financial services | 2024 |
| Xylaris Ltd | Manufacturing | 2024 |
| Y NOT Fashion Limited | Wholesale & retail | 2022 |
| Yacht Fresh Limited | Wholesale & retail | 2017 |
| YAD Properties Limited | Real estate | 2025 |
| Yates Asset Holdings Limited | Real estate | 2022 |
| YBY Consulting Ltd | Information & communication | 2021 |
| YC Lettings Ltd | Real estate | 2020 |
| YCS Systems Limited | Professional & scientific | 2015 |
| YE Oak Ltd | Hospitality | 2025 |
| Yellow Bird Marketing and Communications Ltd | Information & communication | 2019 |
| Yellow Pumps UK Limited | Wholesale & retail | 2007 |
| Yellow Spade Design Ltd | Professional & scientific | 2011 |
| Yesl Ltd | Information & communication | 2000 |
| YLH Limited | Financial services | 2015 |
| YO Shinobi Ltd | Information & communication | 2026 |
| Yorkshire Digital Academy Limited | Extraterritorial | 2020 |
| Yorkshire Ground Baits Ltd | Wholesale & retail | 2002 |
| Yorkshire Transport Solutions Limited | Transport & logistics | 2018 |
| Youlgrave Garage Limited | Wholesale & retail | 2020 |
| Young Guns Sports Limited | Manufacturing | 2017 |
| Young Minds Counselling CIC | Health & social care | 2025 |
| Young Ones Early Years Ltd | Health & social care | 2019 |
| Your Energy Specialists Ltd | Construction | 2024 |
| Your Lawyers Limited | Professional & scientific | 2008 |
| Your Life Charity | Hospitality | 2004 |
| Your MIX Limited | Construction | 2012 |
| Your Structural Engineers Ltd | Professional & scientific | 2025 |
| Yourschooluniform.Com Limited | Manufacturing | 2004 |
| Yourstyle North West Limited | Wholesale & retail | 2017 |
| Youth Lifelines Company Limited | Education | 2003 |
| Youth Motorcycle Sporting Association (Y.M.S.A.) Limited | Arts & recreation | 1983 |
| YSL Cafe Ltd | Real estate | 2024 |
| Yummi Foods Limited | Hospitality | 2020 |
| Yvonne Hallam Coaching Ltd | Education | 2025 |
| Z and S Trading Ltd | Wholesale & retail | 2022 |
| Z1 Telecom Limited | Information & communication | 2002 |
| Z1 Telecom Systems Limited | Information & communication | 2010 |
| Z4 Tyres and Services Limited | Wholesale & retail | 2023 |
| Z4TYRES Ltd | Transport & logistics | 2018 |
| Zaahu Limited | Wholesale & retail | 2025 |
| Zachrome Limited | Manufacturing | 2012 |
| Zaha Enterprise Ltd | Hospitality | 2026 |
| Zahid Indian Limited | Hospitality | 2022 |
| Zahid Restaurant & Takeaway Ltd | Hospitality | 2026 |
| Zaika Chesterfield Limited | Hospitality | 2015 |
| Zaika Restaurant Chesterfield Ltd | Hospitality | 2025 |
| ZAK Morgan Stove Installations Ltd | Construction | 2025 |
| Zakana Limited | Administrative & support | 2021 |
| Zapmeds Limited | Wholesale & retail | 2025 |
| Zebra Somersall Limited | Construction | 2024 |