| WAX and Whistle Ltd | Extraterritorial | 2021 |
| Waxwing Design and Build Ltd | Construction | 2025 |
| Way of Life Bonsai Ltd | Wholesale & retail | 2020 |
| Wayman Enterprises Limited | Education | 2015 |
| Wayvin Properties Ltd | Real estate | 2020 |
| Waywo Ltd | Information & communication | 2015 |
| WB Retail Innovations Limited | Administrative & support | 2005 |
| WBP YOR E LLP | | 2024 |
| WD Landscapes and Construction Ltd | Administrative & support | 2022 |
| WD Property & Developments Ltd | Real estate | 2023 |
| WDL Estate Management Limited | Real estate | 2025 |
| Wdnp Limited | Information & communication | 2019 |
| WDS Homes Limited | Real estate | 2022 |
| WDY UK Limited | Professional & scientific | 2015 |
| WE ARE Abide Ltd | Hospitality | 2023 |
| WE ARE Bert Ltd | Wholesale & retail | 2023 |
| WE JAR IT Ltd | Manufacturing | 1983 |
| WE R Your IT Limited | Information & communication | 2000 |
| WE Write Your Content Limited | Professional & scientific | 2017 |
| Wealth Limited | Extraterritorial | 1995 |
| Wealth Management Partners Group UK Limited | Financial services | 2019 |
| Wealthwave Financial LLP | | 2023 |
| Wealthwave Financial Services Ltd | Financial services | 2025 |
| Weareallwoman Ltd | Professional & scientific | 2021 |
| Weatherproof Windows & Doors Ltd | Construction | 2015 |
| Weavers Meadow Estates Management Company Limited | Households | 2011 |
| Weavers Meadow Phase 2 (Hadleigh) Residents Management Company Limited | Households | 2020 |
| Weavers Place (Earl Shilton) Management Company Limited | Households | 2025 |
| Weavers Place (Skelmanthorpe) Management Company Limited | Households | 2022 |
| Weavers View (Pleasley Hill) Residents Management Company Limited | Households | 2016 |
| Weavers Wharf Apartments (Coventry) Management Company Limited | Households | 2015 |
| Web Adventure Park Limited | Arts & recreation | 2006 |
| Web Hub Media Ltd | Wholesale & retail | 2015 |
| WEB3 Ltd | Other services | 2012 |
| Webcross Limited | Information & communication | 2016 |
| Webfrog Limited | Information & communication | 2021 |
| Webhosting UK COM Limited | Information & communication | 2008 |
| Weblinks Ltd | Manufacturing | 1997 |
| Website*Turbine Limited | Information & communication | 2001 |
| Webuysupercars.Com Limited | Wholesale & retail | 2016 |
| Wedgwood Alexander Properties Limited | Real estate | 1999 |
| Wedgwood Consultancy Limited | Professional & scientific | 2007 |
| Wednesday Property Services Ltd | Real estate | 2025 |
| WEE Blairs Property Ltd | Real estate | 2026 |
| Weekday Offender Limited | Arts & recreation | 2025 |
| Weighton Apartments Ltd | Households | 2025 |
| Weighton Wolds C.I.C. | Wholesale & retail | 2020 |
| Wekim Limited | Professional & scientific | 2023 |
| Welcome Lets York Ltd | Hospitality | 2019 |
| Welcomehold Property Management Limited | Households | 1992 |
| Welcometraining Ltd | Administrative & support | 2008 |
| Welcomevalue Property Management Limited | Households | 1993 |
| Weldcraftpro Limited | Extraterritorial | 2015 |
| Well MET Therapies Ltd | Extraterritorial | 2026 |
| Well North Ltd | Information & communication | 2025 |
| Well Remembered Ltd | Professional & scientific | 2011 |
| Well&Gut Ltd | Health & social care | 2023 |
| Wellbeing at Heart Ltd | Health & social care | 2023 |
| Wellbeing in York CIC | Health & social care | 2006 |
| Welldone Industrial Cleaners Limited | Administrative & support | 2003 |
| Wellington Gate (Grove) Management Company Limited | Real estate | 2018 |
| Wellmax Limited | Real estate | 1997 |
| Wellspring Labs Limited | Information & communication | 2026 |
| Wellspring Solutions (York) Limited | Professional & scientific | 2024 |
| Welton Civils Ltd | Construction | 2025 |
| Welwyn & Welham House Management Company Limited | Households | 2001 |
| Wenbay Limited | Professional & scientific | 2020 |
| Wenlock Management Limited | Households | 2022 |
| Wenlock Terrace (York) Limited | Households | 1991 |
| Wenlock Terrace Management Company Limited | Households | 1989 |
| Wenshaw Limited | Extraterritorial | 1990 |
| Wentbridge Limited | Professional & scientific | 2015 |
| Wentsford Developments Limited | Construction | 2026 |
| Wentsford Holdings Limited | Real estate | 2009 |
| Wentsford Properties Limited | Real estate | 2013 |
| Wentsford Pubs Limited | Hospitality | 2013 |
| Wentworth Green Management Company Limited | Households | 2012 |
| Wentworth Miller Limited | Administrative & support | 2010 |
| Wenxin House Limited | Hospitality | 2022 |
| Wescott Holdings Limited | Extraterritorial | 2003 |
| Wescott Homes Limited | Construction | 2003 |
| Wescott Land Limited | Extraterritorial | 2003 |
| Wessex Rose Ltd | Hospitality | 2012 |
| West Park (York) Management Company Limited | Households | 2007 |
| West Auckland Dental Care Limited | Health & social care | 2024 |
| West END 1971 Limited | Extraterritorial | 2014 |
| West END House (Wetherby) Management Company Limited | Households | 2004 |
| West Farm Developments (Ulleskelf) LLP | | 2019 |
| West Green Ventures Limited | Hospitality | 2018 |
| West Heslington Properties Limited | Households | 1982 |
| West Riding Property Company Limited | Real estate | 1973 |
| Westaby's Limited | Manufacturing | 2011 |
| Westbourne QT Global Ltd | Administrative & support | 2023 |
| Westburgh Lake Limited | Professional & scientific | 2025 |
| Westbury Direct Limited | Extraterritorial | 1975 |
| Westbury Homes (Holdings) Limited | Professional & scientific | 1964 |
| Westbury Homes (Midlands) Limited | Extraterritorial | 1985 |
| Westbury Homes (Oval) Limited | Extraterritorial | 1989 |
| Westbury Homes (Severnside) Limited | Extraterritorial | 1980 |
| Westbury Homes (Somerset) Limited | Extraterritorial | 1986 |