| Wardie Transport Limited | Transport & logistics | 2023 |
| Warrilows Ltd | Construction | 2011 |
| Warriors SG Limited | Administrative & support | 2025 |
| Warwickshire Digital Ltd | Information & communication | 2017 |
| Water Smart Technology UK Ltd | Extraterritorial | 2024 |
| Waterfit Limited | Manufacturing | 2005 |
| Waterside Grove Management Company Ltd | Households | 2024 |
| Watson Insulation Limited | Construction | 2015 |
| Watsons Express Limited | Hospitality | 2021 |
| Wavecrest Software Limited | Information & communication | 1999 |
| Waverley Park Management Company Limited | Households | 1996 |
| Waves Swimming Academy Ltd | Arts & recreation | 2013 |
| Waxam Ways Ltd | Wholesale & retail | 2025 |
| Waymaker Contractors Ltd | Construction | 2025 |
| WCT Europe Limited | Administrative & support | 2010 |
| WCT International Limited | Administrative & support | 2009 |
| WDC 1 Holdings Limited | Financial services | 2022 |
| WDC 1 Limited | Financial services | 2006 |
| WE ARE the Jamess Ltd | Information & communication | 2024 |
| WE ARE the Signage Ltd | Professional & scientific | 2025 |
| Wearlivin Limited | Professional & scientific | 2020 |
| Weaver Industrial Roofing Limited | Construction | 2026 |
| Web Formation Tech Limited | Information & communication | 2024 |
| Webb Ricardo Ltd | Wholesale & retail | 2026 |
| Webuyanymetal.Com Ltd | Wholesale & retail | 2025 |
| WECARE4U PVT Ltd | Health & social care | 2015 |
| Wedge Transport Services Limited | Transport & logistics | 2014 |
| Wednesbury Lock & Safe (Midlands) Ltd | Professional & scientific | 2010 |
| Weeebuyanyappliance.Com Limited | Other services | 2013 |
| Welding World Ltd | Professional & scientific | 2013 |
| Wellington (Brettell Lane) Limited | Hospitality | 2024 |
| Wellington GJ Ltd | Real estate | 2019 |
| Wellington Road Community Centre Trustees Limited | Arts & recreation | 2011 |
| Wellness Academy Limited | Health & social care | 2009 |
| Wellness Cafe Limited | Professional & scientific | 2000 |
| Wellness Coach Limited | Professional & scientific | 1995 |
| Wellspring Everyday Support Ltd | Health & social care | 2022 |
| Welsh Royal Crystal Limited | Manufacturing | 2011 |
| Wembley Fitness Limited | Arts & recreation | 2024 |
| Wenford Ltd | Real estate | 2023 |
| West Midland Sections Limited | Extraterritorial | 1991 |
| West Midlands Arts Trust(The) | Real estate | 1985 |
| West Midlands Distillery Limited | Manufacturing | 2019 |
| West Midlands Homeware Ltd | Wholesale & retail | 2022 |
| West Midlands Powder Coaters Limited | Manufacturing | 2001 |
| West Mids Commercials Ltd | Wholesale & retail | 2025 |
| West Mids Electrical Ltd | Construction | 2018 |
| Westbeech Holdings (Midlands) Limited | Professional & scientific | 2011 |
| Westbrook & Oakmont Ltd | Construction | 2025 |
| Western MK Electrical Services Ltd | Construction | 2018 |
| Western Technologies (Europe) Limited | Manufacturing | 2000 |
| Westmidlands Windows & Doors Ltd | Construction | 2019 |
| Westmids Autos Limited | Wholesale & retail | 2024 |
| Westmount Contracting Limited | Construction | 2008 |
| Weston Rock Developments Limited | Construction | 2003 |
| Westwood Court (Winsford) Limited | Health & social care | 2017 |
| Whale Song Limited | Agriculture & fishing | 2002 |
| WHEELS2U West Midlands Ltd | Wholesale & retail | 2026 |
| Wheller Group Ltd | Manufacturing | 2022 |
| Whisky Bars Ltd | Hospitality | 2018 |
| Whispey Holdings Ltd | Financial services | 2024 |
| White Horse Care Ltd | Health & social care | 2014 |
| White House Cancer Support Limited | Health & social care | 2011 |
| Whitecroft Solutions Limited | Financial services | 2018 |
| Whitegate (WM) Limited | Other services | 2022 |
| Whitehouse GAS & Mechanical Ltd | Construction | 2024 |
| Whites Building Ltd | Construction | 2019 |
| Whites Holdings and Investments Ltd | Financial services | 2026 |
| Whittal's Ltd | Manufacturing | 2018 |
| Whittams Civils Limited | Construction | 2025 |
| Whittams Group Limited | Construction | 2012 |
| Wholesale Kingdom Ltd | Wholesale & retail | 2020 |
| Who’S Next Trials Limited | Arts & recreation | 2025 |
| WHY Move Improve Limited | Real estate | 2003 |
| Wild and Boujee Ltd | Manufacturing | 2025 |
| Wildbloom PTK Ltd | Health & social care | 2026 |
| William Round & SON Limited | Real estate | 1912 |
| Willow Estates and Investments Ltd | Real estate | 2020 |
| Willow Group Investments Ltd | Financial services | 2026 |
| Willow Hall Residential Care Home Limited | Health & social care | 2023 |
| Willow Homes and Developments Ltd | Construction | 2026 |
| Willow Homes Holdings and Investments Ltd | Financial services | 2019 |
| Willow Homes Pattingham Ltd | Construction | 2019 |
| Willow Nannies & Maternity Ltd | Administrative & support | 2026 |
| Willowvale Health Limited | Health & social care | 2015 |
| Wilmark Midlands Ltd | Construction | 2012 |
| Wilson Organisation Limited | Wholesale & retail | 2018 |
| Winbridge Limited | Construction | 2011 |
| Window Smart Ltd | Construction | 2026 |
| Windowmaster (Midlands) Ltd | Construction | 2024 |
| Windsor Gardens (Uttoxeter) Management Company Ltd | Households | 2007 |
| Windsors Consultants Ltd | Information & communication | 2013 |
| Windsors Rybridge Ltd | Professional & scientific | 2007 |
| Windvent Limited | Professional & scientific | 2009 |
| Winstanley House Limited | Hospitality | 2012 |
| Winterdene Carpentry and Construction Ltd | Construction | 2013 |
| Winwoods Blinds & Shutters Ltd | Wholesale & retail | 2026 |
| Wired Controls Limited | Construction | 2020 |
| Wirral Home and Property Services Ltd | Administrative & support | 2026 |
| Wise Vehicle Repairs Ltd | Wholesale & retail | 2019 |