| Welligogs Limited | Wholesale & retail | 2000 |
| Wellington Pharmacy Limited | Wholesale & retail | 2012 |
| Wellington&Sons Ltd | Wholesale & retail | 2020 |
| Wellman Group Ltd | Hospitality | 2018 |
| Wellmont Engineers and Contractors Ltd | Construction | 2025 |
| Wellness Beyond Borders C.I.C. | Health & social care | 2025 |
| Wellness Station Ltd | Health & social care | 2026 |
| Wellness-Uk Limited | Health & social care | 2021 |
| Wellsway Limited | Wholesale & retail | 2015 |
| Welton Black Bull Limited | Hospitality | 2019 |
| Wendy's Childcare and Treezone Ltd | Health & social care | 2018 |
| Werfield Engineering Group Limited | Financial services | 2026 |
| Werfield Investment Properties Limited | Real estate | 2026 |
| West Brom Concept Stores Limited | Professional & scientific | 2016 |
| West Brom Lodge Ltd | Wholesale & retail | 2022 |
| West Brom Lyng Ltd | Wholesale & retail | 2023 |
| West Cornwall Storage and Distribution Limited | Transport & logistics | 1982 |
| West END News and OFF Licence Limited | Wholesale & retail | 2026 |
| West Malvern Marketing Limited | Professional & scientific | 2008 |
| West Midland American Vehicles Limited | Wholesale & retail | 2002 |
| West Midland Builders Ltd | Construction | 2013 |
| West Midland GAS and Electric Ltd | Construction | 2025 |
| West Midland Service Care Ltd | Health & social care | 2025 |
| West Midlands Access Platforms Limited | Administrative & support | 2022 |
| West Midlands Bouncy Castle Hire Limited | Arts & recreation | 2025 |
| West Midlands Building Consultancy Limited | Construction | 2008 |
| West Midlands Commercial Properties Limited | Real estate | 2015 |
| West Midlands Garage Doors Limited | Wholesale & retail | 2008 |
| West Midlands Heating & Pipework Limited | | 1979 |
| West Midlands Inflatables Limited | Arts & recreation | 2016 |
| West Midlands Motorhome Hire Ltd | Real estate | 2024 |
| West Midlands Open College Limited | Education | 2013 |
| West Midlands Polishing Services Ltd | Manufacturing | 2014 |
| West Midlands Racking and Mezzanine Limited | Construction | 2016 |
| West Midlands Security Solutions Limited | Administrative & support | 2012 |
| West Midlands Sports Development C.I.C. | Arts & recreation | 2018 |
| West Midlands Stove Installations Limited | Construction | 2022 |
| West Midlands Supported Living Limited | Health & social care | 2019 |
| West Midlands Supporting Separated Families Alliance CIC | Education | 2023 |
| West Midlands Sweeps Limited | Administrative & support | 2022 |
| West Midlands Transport Services Limited | Extraterritorial | 2017 |
| West Mids Pallets Ltd | Manufacturing | 2021 |
| West Saffron Investments Limited | Real estate | 2025 |
| West Tubes Limited | Wholesale & retail | 2023 |
| Westcort Limited | Wholesale & retail | 2021 |
| Westcroft Events Limited | Administrative & support | 2004 |
| Westdown Transport Ltd | Transport & logistics | 2026 |
| Westelm Property Management Limited | Real estate | 2004 |
| Western Home General Trading & Maintenance Ltd | Other services | 2019 |
| Westgate Aluminium Extrusion Ltd | Wholesale & retail | 2014 |
| Westgate Coil and Processing Limited | Manufacturing | 2010 |
| Westgate Metalwork and Services Limited | Manufacturing | 2014 |
| Westgate Properties WM Ltd | Real estate | 2026 |
| Westgate Stainless and Alloys Limited | Wholesale & retail | 2006 |
| Westie Holdings Ltd | Real estate | 2018 |
| Westminster Crown Recruitment Ltd | Administrative & support | 2025 |
| Weston Entertainments Ltd | Arts & recreation | 2023 |
| Weston Street Ltd | Wholesale & retail | 2026 |
| Westron Care Ltd | Transport & logistics | 2023 |
| Westside Industrial Limited | Construction | 2025 |
| Westward Hope Limited | Extraterritorial | 2011 |
| Westwood Crane Services Ltd | Construction | 2022 |
| WFF Walsall Limited | Wholesale & retail | 2012 |
| WGP Properties LLP | | 2015 |
| Wharton Consultancy Limited | Professional & scientific | 2008 |
| Whatittakes Ltd | Wholesale & retail | 2018 |
| Whealthx Limited | Real estate | 2021 |
| Wheatland Same Day Services Limited | Transport & logistics | 2004 |
| Wheatley Flooring Limited | Other services | 2012 |
| Wheelswizard Limited | Wholesale & retail | 2020 |
| Whelanpubtrade Ltd | Hospitality | 2024 |
| Whenua Properties Ltd | Real estate | 2024 |
| WHG Developments Limited | Construction | 2011 |
| WHG Trading Company Limited | Professional & scientific | 2005 |
| WHG Treasury PLC | Real estate | 2014 |
| Whitchurch Studio Limited | Health & social care | 2020 |
| White Falcon Property Services Ltd | Real estate | 2022 |
| White Hart Newark Limited | Hospitality | 2019 |
| White House IT Limited | Information & communication | 2023 |
| White Lion Midland Ltd | Hospitality | 2026 |
| White Sphere Company Ltd | Wholesale & retail | 2021 |
| White Tiger Properties Ltd | Real estate | 2017 |
| Whitehouse (Sutton Coldfield) Limited | Health & social care | 2018 |
| Whitehouse Ridsdale Limited | Professional & scientific | 2018 |
| Whittington's Chippy Limited | Hospitality | 2015 |
| WHJ Leisure Limited | Arts & recreation | 2015 |
| Wholesale Security Europe Limited | Wholesale & retail | 2011 |
| Wholesale UK Supplies Ltd | Wholesale & retail | 2026 |
| WHP Developments Limited | Construction | 2004 |
| Widney Leisure Limited | Manufacturing | 1990 |
| Wild Botanix Limited | Manufacturing | 2024 |
| Wild Game & Butchery Ltd | Agriculture & fishing | 2025 |
| Wild Ways West Midlands CIC | Health & social care | 2025 |
| Wilde Composites Limited | Manufacturing | 2016 |
| Wilde Java (UK) Limited | Wholesale & retail | 2009 |
| Wilderness Wanderers Ltd | Arts & recreation | 2022 |
| Wilkes Distribution Services Ltd. | Transport & logistics | 1996 |
| Wilkes Security Products Limited | Manufacturing | 1982 |
| Willenhall Freehold Ltd | Real estate | 2022 |
| Willenscare Ltd | Health & social care | 2021 |