| Western (Walsall) Limited | Other services | 2021 |
| Westmid Construction Limited | Construction | 2003 |
| Westmore Debt Management Ltd | Professional & scientific | 2016 |
| Westmore Property Development Ltd | Construction | 2016 |
| Westmore Sports Management Ltd | Financial services | 2016 |
| Westmore Wealth Management Ltd | Professional & scientific | 2016 |
| Weston Fire & Security Ltd | Construction | 2026 |
| Weston Properties Ltd | Real estate | 2026 |
| Wheeler Technology Group Ltd | Information & communication | 2025 |
| Wheels for Steels Ltd | Transport & logistics | 2026 |
| Whetstone Interiors Limited | Construction | 2007 |
| Whites Grab Ltd | Construction | 2021 |
| Whitworth Bidco 2 Limited | Financial services | 2022 |
| Whitworth Bidco Limited | Financial services | 2022 |
| Whitworth Holdco Limited | Financial services | 2022 |
| Whitworth Midco PLC | Financial services | 2022 |
| Wholesale Family Local Ltd | Wholesale & retail | 2026 |
| Wilk on the Wheels Ltd | Transport & logistics | 2023 |
| Willenhall Convenience Store Limited | Wholesale & retail | 2010 |
| Willenhall Electrical Ltd | Construction | 2014 |
| Willenhall Truck Parking Limited | Other services | 2019 |
| Williams Brothers (Sheffield) Ltd | Manufacturing | 2020 |
| Williams Fasteners Ltd | Manufacturing | 2020 |
| Wilsons Limited | Wholesale & retail | 1986 |
| Windermere Windows Ltd | Construction | 2023 |
| Windmill Power Ltd | Hospitality | 2023 |
| WMK Enterprises Ltd | Wholesale & retail | 2026 |
| Wolverhampton Bumper Ltd | Wholesale & retail | 2019 |
| Wolverhampton Caravan Centre Ltd | Wholesale & retail | 2026 |
| Wolverhampton Desserts Limited | Hospitality | 2018 |
| Wolverhampton Media Walls & Fires Ltd | Hospitality | 2023 |
| Wolves Service Ltd | Other services | 2025 |
| Wonderinkpress Ltd | Information & communication | 2025 |
| Wonderland Childrens Day Nursery (UK) Ltd | Education | 2007 |
| Wood Green Academy | Education | 2011 |
| Woodgreen Stores(Wm) Ltd | Wholesale & retail | 2020 |
| Woods WS10 Ltd | Hospitality | 2024 |
| Woolink Limited | Wholesale & retail | 2025 |
| World of Recycling Ltd | Water & waste | 2011 |
| Worldwide Fresh Ltd | Wholesale & retail | 2025 |
| Worley Pritchard Ltd | Professional & scientific | 2020 |
| Worthington Lettings Ltd | Real estate | 2020 |
| Wright & Co Partnership Limited | Professional & scientific | 2002 |
| Wright Shelf 4 Ltd | Extraterritorial | 2024 |
| WS10 (Wolverhampton) Ltd | Hospitality | 2017 |
| WS10 Limited | Real estate | 2012 |
| Wsed Limited | Hospitality | 2022 |
| Wsmr Ltd | Administrative & support | 2015 |
| Wudmax Studios Limited | Wholesale & retail | 2021 |
| WV Accountants Ltd | Professional & scientific | 2023 |
| Xeroblu Ltd | Wholesale & retail | 2022 |
| XL Cars (Group) Limited | Transport & logistics | 2019 |
| XLR8 Heating Ltd | Construction | 2022 |
| Y P Digital Services Ltd | Other services | 2025 |
| YD Cuisine Limited | Hospitality | 2024 |
| Yellow Cars WM Limited | Transport & logistics | 2023 |
| Yeomans Assets Ltd | Financial services | 2021 |
| Yeomans Electrical & Security Ltd | Construction | 2018 |
| Yeshua Holdings Ltd | Wholesale & retail | 2017 |
| YJM Wholesales Market Limited | Wholesale & retail | 2025 |
| Yoko Holdings Limited | Financial services | 2023 |
| Yoko International Limited | Wholesale & retail | 2002 |
| Yoko Investments Limited | Real estate | 2007 |
| Yorkies MOT and Service Centre Ltd | Wholesale & retail | 2023 |
| Yorkshire Stainless Limited | Manufacturing | 1992 |
| Yorlek Consult Ltd. | Construction | 2016 |
| Youjamark Wholesales Market Limited | Wholesale & retail | 2025 |
| Your Choice Confectionary Limited | Wholesale & retail | 2021 |
| YP Dhillon Ltd | Real estate | 2021 |
| YSH Property Investments Ltd | Real estate | 2026 |
| Yumm Foods Ltd | Other services | 2025 |
| Yuntraders Ltd | Wholesale & retail | 2025 |
| Yuyi Kitchen Limited | Hospitality | 2022 |
| Z. Carz Ltd | Wholesale & retail | 2017 |
| Z.A. Digital Services Ltd | Information & communication | 2014 |
| Z.A. Holdings WM Ltd | Financial services | 2018 |
| Z.A. Services WM Ltd | Other services | 2022 |
| Zaeed Ahad Ltd | Construction | 2025 |
| Zaev Ltd | Transport & logistics | 2017 |
| Zahra Food Distribution Ltd | Wholesale & retail | 2018 |
| Zahturn Technologies Limited | Information & communication | 2009 |
| Zaim's Autos Limited | Wholesale & retail | 2025 |
| Zaitoun Motor Ltd | Wholesale & retail | 2026 |
| Zakir Traders Ltd | Wholesale & retail | 2024 |
| Zarviano Ltd | Wholesale & retail | 2025 |
| ZEN Travels West Midlands Limited | Transport & logistics | 2021 |
| ZF Lemforder UK Limited | Manufacturing | 1989 |
| Zianas Limited | Administrative & support | 2014 |
| Zimaaz Ltd | Wholesale & retail | 2025 |
| Zusdaf (Zimbabwe UK SDA Fellowship) | Education | 2016 |