| Wilkinson Studio Ltd. | Professional & scientific | 2017 |
| Will Adam Music Ltd | Education | 2023 |
| Will and Grace Limited | Hospitality | 2023 |
| Will Mell Personal Training Limited | Other services | 2022 |
| William & Julia Shaw Limited | Manufacturing | 2004 |
| William Azizi Properties Ltd | Real estate | 2025 |
| William Cooper Holdings Limited | Professional & scientific | 2007 |
| William Noble Butchers Limited | Hospitality | 2019 |
| Williams & Hylton Ltd | Construction | 2003 |
| Williams & Needham Limited | Water & waste | 1977 |
| Williams & Wood (Wath) Limited | Construction | 1978 |
| Williams Windows Limited | Construction | 2021 |
| Willis Contracting Ltd | Manufacturing | 2022 |
| Willobi Ltd | Wholesale & retail | 2025 |
| Willow Day Nursery Ltd | Health & social care | 2022 |
| Willow Edge (Gleadless) Management Company Limited | Professional & scientific | 2006 |
| Willow Estates (Yorkshire) Limited | Construction | 2021 |
| Willow Grove (Barnsley) Management Company Limited | Real estate | 2005 |
| Willow Homes (Yorkshire) Limited | Construction | 2026 |
| Wilson Collects Ltd | Wholesale & retail | 2026 |
| Wilson Racing Ltd | Wholesale & retail | 2019 |
| Wilson Timber Ltd | Wholesale & retail | 2025 |
| Winch & Co Associates Ltd | Professional & scientific | 2016 |
| Winch & Co Capital Ltd | Professional & scientific | 2023 |
| Winch & Co Group Ltd | Financial services | 2011 |
| Winder Engineering Limited | Construction | 2012 |
| Winder Joinery Limited | Manufacturing | 2018 |
| Winding Oak Limited | Financial services | 2017 |
| Windmill Homes (Yorkshire) Ltd | Construction | 2019 |
| Windorspec Limited | Wholesale & retail | 2011 |
| Window Envy Limited | Extraterritorial | 2013 |
| Window Improvements Limited | Construction | 2007 |
| Winfield IT Services Ltd | Information & communication | 2013 |
| Winning Brew Ltd | Wholesale & retail | 2023 |
| Winning Handyman Services Limited | Construction | 2024 |
| Winstanley Housing Ltd | Real estate | 2026 |
| Winter Hill Farms Ltd | Agriculture & fishing | 2025 |
| Winter Seam Productions Ltd | Information & communication | 2025 |
| Winter Wolfe Limited | Real estate | 2023 |
| Winterfit Holdings Limited | Financial services | 2025 |
| Wirclsburh Eco-Friendly Construction Limited | Construction | 2021 |
| Wirclsburh Hall Investments Limited | Construction | 2021 |
| Wire Controls Ltd | Professional & scientific | 2023 |
| Wired Audio Ltd | Arts & recreation | 2019 |
| Wired Events Yorkshire Ltd | Information & communication | 2014 |
| Wisconco Limited | Construction | 1993 |
| Wise Corporate Finance Limited | Financial services | 2023 |
| Wise Guard Security Services Ltd | Construction | 2023 |
| Wise OWL Nursery & Pre-School Limited | Education | 2018 |
| Wise Vending Limited | Other services | 2019 |
| With Global Ltd | Administrative & support | 2020 |
| WJS Plumbing & Heating Specialists Ltd | Construction | 2014 |
| WL Comms Ltd | Wholesale & retail | 2024 |
| WM & GP Groundworks Ltd | Construction | 2014 |
| WMJ Investments Limited | Real estate | 2023 |
| Wodity Limited | Information & communication | 2022 |
| Wolf Laundry Holdings Limited | Wholesale & retail | 2016 |
| Wolf Laundry Limited | Wholesale & retail | 2012 |
| Wolf UK Holdings Limited | Financial services | 2020 |
| Wombwell Barber Ltd | Other services | 2024 |
| Wombwell Fones Ltd | Wholesale & retail | 2025 |
| Wombwell Gothic Steam Company Ltd | Wholesale & retail | 2018 |
| Wombwell Home of Bargain Ltd | Wholesale & retail | 2024 |
| Wombwell Ltd | Wholesale & retail | 2026 |
| Wombwell Minimarket Ltd | Wholesale & retail | 2023 |
| Wombwell Recreation Ground Limited | Arts & recreation | 1999 |
| Wombwell Town Facilites Ltd | Arts & recreation | 2019 |
| Wombwell Transport Ltd | Transport & logistics | 2016 |
| Wombwell Tyres Ltd | Wholesale & retail | 2009 |
| Women in Hifi LLP | | 2025 |
| Wonderers Design Ltd | Wholesale & retail | 2016 |
| Wonderkids Club Ltd | Health & social care | 2025 |
| Wood Brothers Glass Company Limited | | 1905 |
| Wood Street (South Hiendley) Management Company Limited | Households | 2004 |
| Woodcliffe Properties Limited | Real estate | 2021 |
| Woodcock Electrical Limited | Construction | 1999 |
| Woodgrove Place at Woolley Management Limited | Real estate | 2007 |
| Woodhall and SON Limited | Real estate | 2019 |
| Woodhart Homes Ltd | Real estate | 2026 |
| Woodhead Holdings EOT Limited | Financial services | 2025 |
| Woodhead Holdings Limited | Financial services | 2017 |
| Woodhead Mortgage Services Ltd | Financial services | 2021 |
| Woodland (26) Properties Ltd | Real estate | 2023 |
| Woodland Heights RTM Company Limited | Households | 2018 |
| Woodland House RTM Company Limited | Households | 2017 |
| Woodland Lodge RTM Company Limited | Households | 2018 |
| Woodland.Wild.Wanderlust Ltd | Other services | 2022 |
| Woodlands Management Company (Holmfirth) Ltd | Households | 2021 |
| Woodley Estates & Sanctuary Limited | Real estate | 2020 |
| Woodroyd Limited | Real estate | 2017 |
| Woodside Vale Limited | Real estate | 2009 |
| Woodtek Joinery Limited | Construction | 2015 |
| Woodward Carpets Limited | Construction | 2003 |
| Woody Muddy Kitchens Ltd | Construction | 2019 |
| Wool Couture Ltd. | Wholesale & retail | 2016 |
| Woolgreaves Consultancy Services Limited | Professional & scientific | 2021 |
| Woolhouse Properties Limited | Real estate | 1963 |
| Woolley Grange Apartment Management Company Limited | Households | 2006 |
| Woolley Pubs Limited | Hospitality | 2018 |
| Wordcraft Solutions Ltd | Professional & scientific | 2024 |