| West Warwickshire Sports Complex Ltd | Arts & recreation | 2005 |
| Westbridge Building Co. Ltd | Construction | 2021 |
| Westcote Meadow Management Limited | Real estate | 2006 |
| Westerford House Limited | Professional & scientific | 2014 |
| Western Galvanizers Limited | Professional & scientific | 1963 |
| Westland Motor Company Limited | Extraterritorial | 1933 |
| Westley Recruitment Limited | Administrative & support | 2006 |
| Westman Agencies Limited | Wholesale & retail | 1991 |
| Westmead Marketing Group Ltd | Professional & scientific | 2023 |
| Westmid Property Maintenance Ltd | Construction | 2019 |
| Westminster Court (Kingshurst) Management Company Limited | Households | 1985 |
| Westminster Palace Developments Limited | Real estate | 2011 |
| Weston Smith Holdings Limited | Financial services | 2019 |
| Westpoint Solstice Ltd | Real estate | 2024 |
| Westvale Park (Horley) Management Company Limited | Real estate | 2016 |
| Westwood Design Studios Ltd | Arts & recreation | 2025 |
| Westwood Grove RTM Company Limited | Households | 2009 |
| Wethele Investments Ltd | Financial services | 2024 |
| Wetherden Road (Elmswell) Management Company Limited | Households | 2018 |
| WFV Management Limited | Real estate | 2023 |
| Whale Solutions Limited | Information & communication | 2014 |
| Wharfdale Leisure Ltd | Wholesale & retail | 2018 |
| Wharfside Investment Ltd | Real estate | 2018 |
| Wharton Park Golf and Country Club Limited | Arts & recreation | 2009 |
| What JO Said Limited | Professional & scientific | 2010 |
| Whatwouldajudgesay Ltd | Information & communication | 2024 |
| Whbk Education Ltd | Professional & scientific | 2019 |
| Wheeler and Wheeler Limited | Education | 2012 |
| Wheeler Consultancy Service Limited | Professional & scientific | 2024 |
| WHEELS2GO Ltd | Wholesale & retail | 2024 |
| Wheresmylunch Limited | Professional & scientific | 2008 |
| Whiskers & Wags Pet/House Sitting Ltd | Other services | 2023 |
| Whispers Within Photography Ltd | Professional & scientific | 2025 |
| White ASH Properties Ltd | Real estate | 2024 |
| White Falcon Court Limited | Households | 2005 |
| White Flame Technologies Ltd | Information & communication | 2011 |
| White Gables Management Company Limited | Households | 1974 |
| White Lotus Flowers Ltd | Wholesale & retail | 2021 |
| White Peacock Ltd | Wholesale & retail | 2024 |
| White Star Studios Limited | Administrative & support | 2023 |
| White Swan Properties Limited | Households | 2018 |
| Whiteacre Developments Limited | Construction | 2004 |
| Whitecap Seafoods UK Limited | Wholesale & retail | 2008 |
| Whitegate Residents Association Limited | Households | 1982 |
| Whitegates Warwick Road Solihull Management Company Ltd | Households | 2021 |
| Whitehouse & Co. (Taxation Services) Ltd | Professional & scientific | 2012 |
| Whiteley Meadows Management Company Limited | Households | 2019 |
| Whites Catering Limited | Hospitality | 2025 |
| Whitlocks Limited | Real estate | 2012 |
| Whitmore Jewellers Limited | Extraterritorial | 2012 |
| Whittaker Carpentry Contractors Ltd. | Construction | 2014 |
| Whittington Road (Parkway) Limited | Construction | 2023 |
| Whiven Ltd | Real estate | 2020 |
| Whizwik Studio Ltd | Information & communication | 2023 |
| Wholesalers Limited | Wholesale & retail | 2005 |
| Whybrow Rendle Estates Ltd | Real estate | 2021 |
| Wicleuen Ltd | Education | 2025 |
| Wider Ltd | Information & communication | 2014 |
| Widescope Media Ltd | Information & communication | 2018 |
| Widman Limited | Real estate | 2017 |
| Widnes Galvanising Limited | Manufacturing | 1987 |
| Widney Health Limited | Health & social care | 2016 |
| Widney Road Management Company Limited | Households | 2005 |
| Wigwam Acoustics Limited | Extraterritorial | 1982 |
| Wilcox Estates LLP | | 2022 |
| Wild Goose Diagnostics Ltd | Health & social care | 2026 |
| Wild OWL Consulting Ltd | Professional & scientific | 2024 |
| Wildbx Limited | Hospitality | 2020 |
| Wilde Thing Limited | Professional & scientific | 2006 |
| Wilf Gilbert (Sports) Limited | Extraterritorial | 2002 |
| Wilford Shoes Limited | Wholesale & retail | 2014 |
| Will Barras Ltd | Arts & recreation | 2007 |
| William Armes Limited | Wholesale & retail | 1906 |
| William Clifton Real Estate Ltd | Real estate | 2018 |
| William Middle Electrical Ltd | Construction | 2023 |
| William Middle Group Ltd | Professional & scientific | 2023 |
| William Middle Property Limited | Real estate | 2019 |
| William Steward Eastern Limited | Professional & scientific | 1963 |
| William Thomas Estates Ltd | Real estate | 2011 |
| Willow Cottages Management Company Limited | Real estate | 1997 |
| Willow Crescent Management Co Ltd | Real estate | 2017 |
| Willow Housing (Midlands) Ltd | Real estate | 2021 |
| Willow Park Ltd | Wholesale & retail | 2021 |
| Willowfull Ltd | Professional & scientific | 2006 |
| Willowlake Investments Limited | Professional & scientific | 2007 |
| Willpower Garage Limited | Wholesale & retail | 1967 |
| Wilmat Construction Ltd | Construction | 2022 |
| Wilson Home Improvements Limited | Wholesale & retail | 2015 |
| Wilson Roof Truss Ltd | Manufacturing | 2014 |
| WIN Affiliates Ltd | Information & communication | 2023 |
| Win's Emporium Ltd | Real estate | 2024 |
| Windermere Grange Residents Management Company Limited | Households | 2022 |
| Windmill Developments Limited | Construction | 2017 |
| Window & Door Maintenance (UK) Limited | Extraterritorial | 2005 |
| Windows ARE US (Stratford) Ltd | Construction | 2011 |
| Winep 5 Limited | Extraterritorial | 1990 |
| Winep 50 Limited | Extraterritorial | 1989 |
| Winep 51 Limited | Extraterritorial | 1998 |
| Winep 52 Limited | Extraterritorial | 1991 |
| Winep 53 Limited | Extraterritorial | 1980 |