| Wedge Wire Screens Limited | Manufacturing | 1977 |
| Wednesday Venture Ltd | Wholesale & retail | 2025 |
| Wedpul Ltd | Other services | 2023 |
| Weekly Business Ltd | Wholesale & retail | 2024 |
| WEI Sweets Food Ltd | Wholesale & retail | 2024 |
| Weightlesssleep Ltd | Wholesale & retail | 2025 |
| Weir-Rentals Doncaster Limited | Real estate | 2022 |
| Welbeck Waste Management Limited | Water & waste | 1992 |
| Welch Estates Ltd | Construction | 2016 |
| Welchprop Limited | Real estate | 2020 |
| Welcome Homes Property Solutions Limited | Real estate | 2013 |
| Welcoms Network Services Ltd | Information & communication | 2017 |
| Weldlock Engineering Ltd | Manufacturing | 2018 |
| Weldricks Pharmacy Limited | Wholesale & retail | 2003 |
| Weldtech Fabrication (Yorkshire) Ltd | Manufacturing | 2025 |
| Welfarecare Ltd | Other services | 2021 |
| Well House Investments Limited | Real estate | 2005 |
| Wellesley Property Management Company (Retford) Limited | Real estate | 2006 |
| Wellgate Car Sales Ltd | Wholesale & retail | 2022 |
| Wellingley (Holdings) Limited | Real estate | 2026 |
| Wellings Renovations Ltd | Real estate | 2025 |
| Wellkom Corporate Services Limited | Professional & scientific | 2001 |
| Wellmeadow Care Ltd | Health & social care | 2023 |
| Wellness CENTRESL10 Ltd | Professional & scientific | 2023 |
| Wellness Crafternoons Ltd | Health & social care | 2025 |
| Wellness Retail & Cosmetics Ltd | Wholesale & retail | 2026 |
| Wellness Village Homecare Ltd | Health & social care | 2026 |
| Wellness With Daniella Limited | Wholesale & retail | 2024 |
| Wellscape Group Ltd | Professional & scientific | 2024 |
| Wellspring Collective CIC | Health & social care | 2026 |
| Wenden Commercial Services Limited | Professional & scientific | 2003 |
| Wendy Brown Financial Services Ltd | Financial services | 2013 |
| Wentdale Holdings Limited | Financial services | 2007 |
| Wentdale Limited | Real estate | 1971 |
| Werecon Limited | Administrative & support | 2016 |
| Werentanyhouse.Com Limited | Real estate | 2018 |
| Werkhaus Fitness Ltd | Education | 2025 |
| Wesleyan Court Maintenance Ltd | Households | 2019 |
| Wess Solutions Ltd | Professional & scientific | 2007 |
| West Common Sports Group Ltd | Administrative & support | 2024 |
| West END Car Wash Limited | Wholesale & retail | 2016 |
| West Escape Ltd | Information & communication | 2023 |
| West London Real Estate Ltd | Real estate | 2021 |
| West Moor Holdings Limited | Agriculture & fishing | 1999 |
| West Stockwith Boat Services Limited | Manufacturing | 2024 |
| West Yorkshire Solutions Limited | Professional & scientific | 2014 |
| Westbridge Psychiatry Ltd | Professional & scientific | 2026 |
| Westbros Limited | Financial services | 2015 |
| Westcott Traffic Ltd | Other services | 2019 |
| Westdale Group Limited | Financial services | 2016 |
| Westdale Limited | Construction | 2022 |
| Westdale Midlands Limited | Construction | 2016 |
| Westdale North Limited | Construction | 2016 |
| Westdale Property Services Limited | Extraterritorial | 2016 |
| Westdijkplant Ltd | Wholesale & retail | 2020 |
| Westernbond Travels and Tourism Limited | Administrative & support | 2025 |
| Westford Retail Ventures Ltd | Extraterritorial | 2026 |
| Westgate Property Investments Ltd | Real estate | 2018 |
| Westhouse Capital Limited | Financial services | 2021 |
| Westhouse Consulting Limited | Professional & scientific | 2022 |
| Westmoor Grange Management Company Limited | Households | 2021 |
| Weston Offlicence & Newsagents Limited | Wholesale & retail | 2019 |
| Weston Road Fisheries Limited | Other services | 2017 |
| Westover Properties Limited | Real estate | 1997 |
| Westscores Limited | Extraterritorial | 2012 |
| Westserve Ltd | Information & communication | 2022 |
| Westsupport Ltd | Transport & logistics | 2018 |
| Westwood Installations Upvc Ltd | Construction | 2014 |
| Westwood Joinery and Building Ltd | Construction | 2014 |
| Westwood Oak Joinery Ltd | Construction | 2020 |
| Westwood Park Management Company Limited | Households | 1998 |
| Westwoodside Dental Practice Limited | Health & social care | 2008 |
| Westwoodside Pizza Limited | Hospitality | 2025 |
| Westwoodside Store Ltd | Wholesale & retail | 2020 |
| Wetherby Electrical Contractors Limited | Construction | 1983 |
| Wetherby Electrical Group Limited | Financial services | 2022 |
| Wetherby Electrical Holdings Limited | Professional & scientific | 2008 |
| Wetold Property Ltd | Real estate | 2026 |
| Wetold Transport Ltd | Transport & logistics | 2024 |
| Wexon Limited | Information & communication | 2024 |
| Wezton Ltd | Professional & scientific | 2022 |
| WFF Sports Bars Ltd | Hospitality | 2023 |
| WG Coachbuilding Services Limited | Construction | 2012 |
| WGM Property Limited | Real estate | 2026 |
| Whale Tail Limited | Wholesale & retail | 2023 |
| Wharfeside Hire Limited | Administrative & support | 2023 |
| What Moto Limited | Wholesale & retail | 2024 |
| Wheatley Developments Limited | Real estate | 1974 |
| Wheatley Hall One Limited | Real estate | 2024 |
| Wheatley Hall Properties Limited | Real estate | 2015 |
| Wheatley Heating and Plumbing Solutions Ltd | Construction | 2026 |
| Wheatley Hill PO and News Limited | Wholesale & retail | 2009 |
| Wheatley Holdings (Doncaster) Limited | Professional & scientific | 2005 |
| Wheatley Pallet Services Limited | Manufacturing | 1998 |
| Wheatly Hand Carwash Limited | Administrative & support | 2025 |
| Wheels ALL Round Ltd | Wholesale & retail | 2019 |
| Wheelworld Limited | Extraterritorial | 2011 |
| Whelan Site Services Ltd | Other services | 2023 |
| Wheldrake Properties Limited | Real estate | 1981 |
| WHG Property Developments Ltd | Real estate | 2021 |