| Whykay Services Limited | Manufacturing | 2011 |
| WIA Enterprise Limited | Wholesale & retail | 2020 |
| Wibsey Autocare Limited | Wholesale & retail | 2024 |
| Wibsey Electric Fire Centre Ltd | Wholesale & retail | 2026 |
| Wibsey Enterpris Ltd | Wholesale & retail | 2024 |
| Wibsey Halal Meat Ltd | Wholesale & retail | 2024 |
| Wibsey Healthcare Ltd | Wholesale & retail | 2022 |
| Wibsey Motors Ltd | Other services | 2014 |
| Wibsey Nails Limited | Other services | 2024 |
| Wibsey OFF Licence Shop Ltd | Wholesale & retail | 2023 |
| Wibsey Osteopathic Clinic Limited | Health & social care | 2006 |
| Wibsey Phones & Vapes Ltd | Wholesale & retail | 2025 |
| Wibsey Spice BFD Ltd | Hospitality | 2019 |
| Wibsey Suite Centre Limited | Wholesale & retail | 2003 |
| Wibsey Village Barbers Ltd | Other services | 2025 |
| Wicher Travel Ltd | Transport & logistics | 2013 |
| Wiciatrans Ltd | Transport & logistics | 2023 |
| Wickford Farm Limited | Real estate | 2025 |
| Wickham Motorz Ltd | Wholesale & retail | 2025 |
| Wicknexus Ltd | Other services | 2026 |
| Widco Ltd | Wholesale & retail | 2010 |
| Widdop DE Courcy Limited | Manufacturing | 2013 |
| Widdup Limited | Financial services | 2015 |
| Wide Energy Insulation Ltd | Construction | 2025 |
| Widgion Ltd | Information & communication | 2025 |
| Wiggles Play Limited | Arts & recreation | 2020 |
| Wignall Services (UK) Limited | Construction | 2024 |
| Wigs and Braids Limited | Other services | 2025 |
| Wilcocks Grab & Aggregates Ltd | Water & waste | 2026 |
| Wild Bathrooms Ltd | Construction | 2022 |
| Wild Chick Ltd | Administrative & support | 2019 |
| Wild Fawn Jewellery Limited | Manufacturing | 2018 |
| Wild River Property Ltd | Hospitality | 2014 |
| Wilderness Path UK Ltd | Education | 2025 |
| Wilfrids Law Limited | Professional & scientific | 2016 |
| Wilkhu Properties Ltd | Real estate | 2024 |
| Wilkinson & Co.(Plumbers Merchants)Limited | Wholesale & retail | 1948 |
| Wilkinson and Partners Ilkley Limited | Professional & scientific | 2013 |
| Wilkinson and Scott Limited | Wholesale & retail | 1926 |
| Wilkinson Fish Bar Ltd | Hospitality | 2022 |
| William Associates Limited | Professional & scientific | 2021 |
| William Halstead Limited | Extraterritorial | 2010 |
| William Mitchell (Morecambe) Limited | Hospitality | 2019 |
| William Scriven (Yarns) Limited | Extraterritorial | 1937 |
| William Spence (Sheet Metal) Limited | Manufacturing | 2004 |
| William VL Limited | Hospitality | 2019 |
| Williams Coaches Limited | Transport & logistics | 2014 |
| Williams Court Farsley (1994) Management Co. Limited | Households | 1994 |
| Williams WMS Consultancy Ltd | Information & communication | 2024 |
| Williamson Wealth Management Ltd | Professional & scientific | 2023 |
| Williscroft Solicitors Limited | Professional & scientific | 2020 |
| Willow Ground Maintenance Ltd | Administrative & support | 2025 |
| Willow Interiors Limited | Construction | 2025 |
| Willow Taverns Ltd | Hospitality | 2016 |
| Willow's Bakery Ltd | Manufacturing | 2021 |
| Willows Private Day Nursery Limited | Health & social care | 2018 |
| Wils-Health Ltd | Manufacturing | 2020 |
| Wilsden Animal Feeds Ltd | Wholesale & retail | 2022 |
| Wilsden Animations Studios Ltd | Information & communication | 2020 |
| Wilsden Asset Management Ltd | Information & communication | 2020 |
| Wilsden Autos Limited | Wholesale & retail | 1996 |
| Wilsden Community Company CIC | Wholesale & retail | 2016 |
| Wilsden International Ltd | Administrative & support | 2020 |
| Wilsden Joinery Ltd | Construction | 2024 |
| Wilsden Pharm Ltd | Wholesale & retail | 2023 |
| Wilsden Properties Ltd | Real estate | 2020 |
| Wilsden Squash Club Ltd | Arts & recreation | 2025 |
| Wilsden Village Hall | Arts & recreation | 2013 |
| Wilson & Brooke Ltd | Extraterritorial | 2006 |
| Wilson Bros.Greeting Cards Limited | Extraterritorial | 1966 |
| Wilson Bros.Limited | Extraterritorial | 1947 |
| Wilson Investment Co. Limited | Extraterritorial | 1966 |
| Wilstech Limited | Information & communication | 2019 |
| Wilton & SON Joinery Ltd | Manufacturing | 2016 |
| Wilton Street BD Limited | Other services | 2024 |
| Wims Tech Solutions Limited | Professional & scientific | 2017 |
| Winders Commercial Flooring Limited | Construction | 2020 |
| Windhill Auto Repairs Limited | Wholesale & retail | 2025 |
| Window Wizard Cleaning Services Ltd | Administrative & support | 2020 |
| Windows R US Limited | Construction | 2019 |
| Windows World Limited | Construction | 2026 |
| Windrush Generations 'Carnival of Cultures' CIC | Education | 2022 |
| Windrush Generations Limited | Information & communication | 2020 |
| Windsor & York Limited | Manufacturing | 2016 |
| Windstruments (Repairs) Ltd | Other services | 1997 |
| Windy Ridge Recycling Ltd | Water & waste | 2020 |
| Wine Lodge Bradford Limited | Hospitality | 2022 |
| Winerite Limited | Wholesale & retail | 2023 |
| Wing International Limited | Transport & logistics | 2023 |
| Wingglider Limited | Administrative & support | 1996 |
| Wings Academy (Yorkshire) Limited | Arts & recreation | 2017 |
| Wings Distribution Ltd | Wholesale & retail | 2016 |
| Wings International Limited | Transport & logistics | 2022 |
| Winncare MHL Limited | Administrative & support | 2018 |
| Winncare PAC Limited | Manufacturing | 2015 |
| Wintek Construction Ltd | Administrative & support | 2011 |
| Winter Machinery Ltd | Administrative & support | 2002 |
| Winterburn Works Ltd | Professional & scientific | 2017 |
| Winterframes Limited | Manufacturing | 2011 |
| Winters Driveways & Landscapes Limited | Administrative & support | 2023 |