| Wilbraham Holdings Ltd | Financial services | 2023 |
| Wild Bridal Boutique Limited | Wholesale & retail | 2015 |
| Wild Infused Vinegar Limited | Hospitality | 2024 |
| Wild Wolf Property Ltd | Construction | 2024 |
| Wildkind CIC | Education | 2024 |
| Wildling Adventures Limited | Arts & recreation | 2022 |
| Wilkes Catering Supplies Limited | Wholesale & retail | 1998 |
| Wilkes Cleaning Services Limited | Other services | 1989 |
| Wilkes Properties (Wakefield) Limited | Real estate | 1960 |
| Wilkes Vending Services Limited | Wholesale & retail | 1961 |
| Wilkinson Lloyd Properties Ltd | Real estate | 2025 |
| Wilkinson Windscreens Ltd | Wholesale & retail | 2023 |
| Wilkinsons Legal Services Ltd | Professional & scientific | 2011 |
| Will Tint Limited | Construction | 2020 |
| William Lamb (Holdings) Limited | Professional & scientific | 1989 |
| William Lamb Group Limited | Wholesale & retail | 1990 |
| Williams Housing Ltd | Real estate | 2021 |
| Willoughby Broadcast Engineering Ltd | Professional & scientific | 2019 |
| Willow Holdin Ltd | Agriculture & fishing | 2019 |
| Willow Payroll Consultants Limited | Professional & scientific | 2017 |
| Willow Project Consultantcy Ltd | Real estate | 2024 |
| Willow Property Solutions Ltd. | Real estate | 2025 |
| Willow Springs Care Limited | Health & social care | 2025 |
| Wilmer Development Limited | Construction | 2020 |
| Wilshaw Heritage Limited | Construction | 2025 |
| Wilson & SON Property Ltd | Real estate | 2025 |
| Wilson Beds Ltd | Other services | 2020 |
| Wilson Contract Services Limited | Administrative & support | 1999 |
| Wilson General Maintenance Ltd | Construction | 2014 |
| Wilson Holdings (Wakefield) Limited | Financial services | 2018 |
| Wilson Property Development Limited | Real estate | 2021 |
| Wilson-Senior Engineering Limited | Professional & scientific | 2022 |
| Wilsons of Wakefield Limited | Real estate | 2012 |
| Wilson’S Offshore Lifting Ltd | Construction | 2019 |
| Wiltshire Posh Pads Limited | Households | 2016 |
| Winchester Square Ltd | Professional & scientific | 2026 |
| Wincotech Ltd | Construction | 2019 |
| Windmill (Yorkshire) Ltd | Real estate | 2009 |
| Windsor Oval (West Ardsley) Management Company Limited | Households | 2002 |
| Windward Graphic Equipment Limited | Wholesale & retail | 2019 |
| Wings Spirit Ltd | Wholesale & retail | 2025 |
| Winova Group Ltd | Arts & recreation | 2026 |
| WIP Gebaeude Limited | Administrative & support | 2006 |
| WIP Holding Limited | Administrative & support | 2006 |
| Wisa Workplace Services Ltd | Information & communication | 2016 |
| Wise Fleet Services Limited | Wholesale & retail | 2022 |
| Wiser Property Solutions Limited | Extraterritorial | 2024 |
| Wiser Studio & Co UK Limited | Wholesale & retail | 2025 |
| Wisey Autos Ltd | Wholesale & retail | 2024 |
| Wisla Market Express Limited | Wholesale & retail | 2024 |
| Withany Consulting Limited | Administrative & support | 2022 |
| WJ Business Support Ltd | Professional & scientific | 2026 |
| WJD Construction Limited | Construction | 2014 |
| WJD Investments Group Ltd | Real estate | 2026 |
| WJS Accounting and Payroll 1 Limited | Professional & scientific | 2025 |
| WJS DT Limited | Hospitality | 2024 |
| WJS MT Limited | Hospitality | 2025 |
| WJS SG LN Limited | Hospitality | 2025 |
| WJS SG NA Limited | Hospitality | 2025 |
| WJS SG WH Limited | Hospitality | 2025 |
| WJS SP Limited | Hospitality | 2018 |
| WJS TI Limited | Hospitality | 2025 |
| Wkfd AFC Ltd | Arts & recreation | 2021 |
| WKH Limited | Administrative & support | 2019 |
| WL Jackson Ltd | Manufacturing | 2014 |
| Wlodzimierz Podolski Limited | Administrative & support | 2021 |
| WM Sugden & Sons Limited | Manufacturing | 1954 |
| WMM Pharma 2 Limited | Wholesale & retail | 2025 |
| WMM Pharma Ltd | Health & social care | 2020 |
| WMS Site Services Ltd | Construction | 2022 |
| Wmsh Consulting UK Limited | Professional & scientific | 2026 |
| WNF Group Limited | Financial services | 2000 |
| WO2 Property Investment Ltd | Real estate | 2023 |
| Wolf Supplements Ltd | Wholesale & retail | 2020 |
| Wolfpack Games Ltd | Wholesale & retail | 2026 |
| Wollop Software Solutions Limited | Information & communication | 2000 |
| Wonder Wall Tiles Ltd | Wholesale & retail | 2021 |
| Wood & Laycock Limited | Construction | 2021 |
| Wood Joinery Services Ltd | Construction | 2005 |
| Wood Park Interiors Ltd | Extraterritorial | 2020 |
| Wood Street Holdings Ltd | Real estate | 2018 |
| Woodhead Estates Limited | Real estate | 2002 |
| Woodhead Investments & Development Services Limited | Real estate | 1965 |
| Woodhead Properties Limited | Real estate | 1975 |
| Woodhouse Civil Engineering Limited | Construction | 2019 |
| Woodland Healthcare Limited | Health & social care | 1994 |
| Woodland Nursing Homes Limited | Health & social care | 1993 |
| Woodland Park Properties Ltd | Construction | 2018 |
| Woodland Safety Assurance Ltd. | Professional & scientific | 2012 |
| Woodlands of Woolley Limited | Health & social care | 1997 |
| Woodlyn Ltd | Manufacturing | 2026 |
| Woods and More Ltd | Administrative & support | 2005 |
| Woods Electrical Ltd | Energy | 2018 |
| Woodstock Garden Services Ltd | Administrative & support | 2016 |
| Woodthorpe Accounting Limited | Professional & scientific | 2024 |
| Woodthorpe Grange Management Company Limited | Households | 1997 |
| Woodthorpe Hall Gardens Management Company Limited | Households | 2017 |
| Woodthorpe Manor Sandal Limited | Households | 2002 |
| Woodthorpe Pubs Limited | Hospitality | 2010 |
| Woodys K Pizza Ltd | Hospitality | 2025 |