| Walker AEC Limited | Manufacturing | 2025 |
| Walls Floors & Ceilings Limited | Construction | 2012 |
| Walters Interiors Ltd | Construction | 2016 |
| Waltley Renovations Ltd | Construction | 2026 |
| Waraich & SON Property Ltd | Real estate | 2024 |
| Waynes Foods Limited | Wholesale & retail | 1966 |
| Webb-Elec Limited | Manufacturing | 1984 |
| Webbs Accommodation Ltd | Real estate | 2019 |
| Wednesfield Trade Windows & Doors Limited | Manufacturing | 2012 |
| Wellbrook Education Ltd | Education | 2023 |
| Werner Trans Ltd | Transport & logistics | 2016 |
| Wesi Fragrance Limited | Wholesale & retail | 2026 |
| West Midlands Bucket Repairs Limited | Construction | 2020 |
| West Midlands Builder Ltd | Construction | 2020 |
| West Midlands Canoe Centre Ltd | Manufacturing | 2018 |
| West Midlands House (Willenhall) Limited | Administrative & support | 2025 |
| West Midlands House Limited | Professional & scientific | 2016 |
| West Midlands Magazines Limited | Information & communication | 2016 |
| West Midlands Psychotherapy Services Ltd. | Health & social care | 2016 |
| West Midlands Solicitors Ltd | Professional & scientific | 2018 |
| West Midlands Transport Solutions Limited | Transport & logistics | 2018 |
| West Mids Construction (UK) Ltd | Construction | 2022 |
| Western Konsult Limited | Information & communication | 2024 |
| Westmed Care Ltd | Administrative & support | 2016 |
| Westmid Services Ltd | Administrative & support | 2025 |
| Westmidland Transmissions Ltd | Wholesale & retail | 2017 |
| Westside Auto Repair Prestige Ltd | Wholesale & retail | 2025 |
| Whats the Occasion? Ltd | Hospitality | 2019 |
| White Deer Properties Limited | Real estate | 2025 |
| Wholesale Leaders Ltd | Wholesale & retail | 2021 |
| Wild Flowers & Stems Limited | Wholesale & retail | 2025 |
| Willbar Investments Ltd | Real estate | 2021 |
| Willenhall Auto Services Ltd | Wholesale & retail | 2024 |
| Willenhall Autos Ltd | Wholesale & retail | 2018 |
| Willenhall Body Panels Limited | Wholesale & retail | 2006 |
| Willenhall Car Parts Ltd | Wholesale & retail | 2016 |
| Willenhall Commercials Limited | Wholesale & retail | 2009 |
| Willenhall Express U.K. Ltd | Transport & logistics | 2024 |
| Willenhall Fasteners (Holdings) Limited | Professional & scientific | 1994 |
| Willenhall Gym Ltd | Arts & recreation | 2004 |
| Willenhall in Focus C.I.C. | Information & communication | 2025 |
| Willenhall Lock Stock CIC | Arts & recreation | 2025 |
| Willenhall Polishing Ltd | Manufacturing | 2024 |
| Willenhall School of Hope | Health & social care | 2007 |
| Willenhall Takeaway Ltd | Hospitality | 2024 |
| Willenhall Town Centre Partnership | Administrative & support | 2014 |
| Willenhall Waste Collection Ltd | Water & waste | 2025 |
| William Gibbons & Sons Trustee Company Limited | Administrative & support | 2018 |
| William Gibbons & Sons,Limited | Manufacturing | 1911 |
| William Gibbons Group Limited | Professional & scientific | 2007 |
| Willows Bespoke Interiors Ltd | Manufacturing | 2023 |
| Willpower Leadgen Ltd | Administrative & support | 2024 |
| Willsway Repairs Ltd | Wholesale & retail | 2020 |
| Winch Property Solutions Ltd | Real estate | 2023 |
| Wingmen PVT Ltd | Wholesale & retail | 2020 |
| Winster Limited | Wholesale & retail | 1992 |
| WM Properties Ltd | Real estate | 2018 |
| WMT Garage Ltd | Wholesale & retail | 2022 |
| Wmws Industrial Supplies Limited | Wholesale & retail | 1974 |
| WOK Tech Ltd | Wholesale & retail | 2018 |
| Wolf Environmental Ltd | Professional & scientific | 2020 |
| Wolf Financial Services Ltd | Financial services | 2021 |
| Wolverhampton Friendship Centre 050 | Other services | 1997 |
| Wolverhampton Judo Club | Arts & recreation | 2007 |
| Wolverhampton Plastering & Rendering Contractors Ltd | Construction | 2018 |
| Wolverhampton Property Maintenance Ltd | Construction | 2018 |
| Wolverhampton Sickle Cell Care and Social Activity Centre | Health & social care | 2001 |
| Wolverson Carpentry Services Limited | Construction | 2002 |
| Wolverson Holdings Limited | Financial services | 2016 |
| Wolverson X-Ray Limited | Wholesale & retail | 2000 |
| Wolves Nitelife Ltd | Hospitality | 2017 |
| Wood by Post Ltd | Manufacturing | 2013 |
| Woodlands Academy of Learning | Education | 2012 |
| Workplace HR Limited | Administrative & support | 2015 |
| Worldwide Construction Ltd | Construction | 2017 |
| Worldwide Construction(Midlands) Limited | Administrative & support | 2022 |
| Worldwide Contracts Services Ltd | Administrative & support | 2018 |
| WRM Saddles Limited | Manufacturing | 2017 |
| WV12 Limited | Hospitality | 2021 |
| WV13 Ltd | Real estate | 2025 |
| WV2 Education Limited | Education | 2019 |
| WV2 Recruitment Ltd | Administrative & support | 2023 |
| WXR Supplies Limited | Financial services | 2025 |
| X1AN Limited | Extraterritorial | 2020 |
| Xandar Limited | Professional & scientific | 2015 |
| Xela Contract Services Ltd | Transport & logistics | 2017 |
| XL Fleet Wash Limited | Wholesale & retail | 2026 |
| Xpress Steel Services Limited | Manufacturing | 2021 |
| XS Soundz Limited | Arts & recreation | 2025 |
| Yash Textiles Ltd | Manufacturing | 2025 |
| Yeti Retail Ltd | Wholesale & retail | 2019 |
| YM3 Living Limited | Real estate | 2024 |
| Youngs Wrought Iron Fabrications Ltd | Manufacturing | 2025 |
| Your Fitness Your Life Limited | Arts & recreation | 2013 |
| Yoyoserved Limited | Wholesale & retail | 2025 |
| YRS Media UK Ltd | Information & communication | 2025 |
| Ythh Ltd | Wholesale & retail | 2024 |
| Yula Healthcare Ltd | Financial services | 2026 |
| Yuvi Convenience Store Ltd | Wholesale & retail | 2018 |
| YVS Cleaning Services Ltd | Administrative & support | 2025 |