| West Mews Project Services Ltd | Professional & scientific | 2016 |
| West Midlands Auto Services Ltd | Other services | 2023 |
| West Midlands Regional Women’S League Limited | Arts & recreation | 2026 |
| West Premium Limited | Wholesale & retail | 2017 |
| Westbrook Distribution Ltd | Wholesale & retail | 2013 |
| Westmidlands Distributions Ltd | Wholesale & retail | 2025 |
| Westworld International Ltd | Information & communication | 2015 |
| Wheelers Property Group Limited | Real estate | 2024 |
| Whetstone Evolution Property Limited | Real estate | 2018 |
| White Eagle Ltd | Transport & logistics | 2026 |
| White Tiger Apparel Limited | Wholesale & retail | 2019 |
| White's Auto Refinishing Limited | Wholesale & retail | 2013 |
| Whitehall Building Group Ltd | Construction | 2019 |
| Whitehall Landscapes and Groundcare Contractors Limited | Administrative & support | 2004 |
| Whiterockline Ltd | Construction | 2025 |
| Whitestone Approved Vehicles Limited | Wholesale & retail | 2013 |
| Whitestone Building Contractors Ltd | Construction | 2019 |
| Whitestone Property Services (Midlands) Limited | Construction | 2012 |
| Whittleford Restaurant Limited | Hospitality | 2026 |
| Whole Headache Ltd | Arts & recreation | 2024 |
| Wholeserv Limited | Information & communication | 2016 |
| WHY Factor Academy Limited | Extraterritorial | 2013 |
| Widney House Holdings Limited | Transport & logistics | 2006 |
| Wild Breads Bakery Ltd | Manufacturing | 2025 |
| Wild Hearts Press Ltd | Information & communication | 2024 |
| Wild Side Gym Ltd | Other services | 2026 |
| Wilkes Transport Compliance Ltd | Transport & logistics | 2026 |
| Wilkinson & Co Property Group Ltd | Construction | 2024 |
| William Stclare Limited | Financial services | 2003 |
| Williamson Contract Services Limited | Professional & scientific | 2015 |
| Willis Agritech Ltd | Manufacturing | 2022 |
| Willow Park (Stoke Golding) Limited | Construction | 1994 |
| Willowmobilehomes Ltd | Construction | 2026 |
| Wills INV Ltd | Real estate | 2026 |
| Wilmor Plant Hire Ltd | Construction | 2011 |
| Wilsiban Ltd | Administrative & support | 2025 |
| Wilson Logistics Services Ltd | Professional & scientific | 2021 |
| Wilson Medical Aesthetics Ltd | Health & social care | 2025 |
| Wilson's GAS Services Limited | Construction | 2025 |
| WIN WO (Nuneaton) Ltd | Hospitality | 2019 |
| Windmill Sports and Leisure C.I.C. | Arts & recreation | 2024 |
| Window Hospital Limited | Administrative & support | 2003 |
| Windowise Ltd. | Manufacturing | 1997 |
| Windsor Garages Ltd | Wholesale & retail | 2011 |
| Wing XA Limited | Information & communication | 2024 |
| Winston Roofing and Home Maintenance Ltd | Construction | 2023 |
| Wisdom Castle International Limited | Manufacturing | 2019 |
| Wise Construction Ltd | Construction | 2025 |
| Wisteria Property Limited | Real estate | 2019 |
| WMK Transport Limited | Wholesale & retail | 2021 |
| Wmtc Group Limited | Financial services | 2023 |
| Wolftech Services Limited | Other services | 2014 |
| Wonderful 188 Ltd | Real estate | 2021 |
| Wood & Co Property Ltd | Households | 2025 |
| Wood View Nursery’S and Landscaping Limited | Administrative & support | 2025 |
| Woodlands Management Company (Moira) Limited | Households | 2022 |
| Woodnshapes Ltd | Wholesale & retail | 2021 |
| Woodstock Asset Management Ltd | Real estate | 2008 |
| Woolpack House Limited | Professional & scientific | 2026 |
| Workholding Solutions UK Limited | Manufacturing | 2026 |
| Working Week Limited | Professional & scientific | 2003 |
| Workplace Risk Management Limited | Administrative & support | 2013 |
| Worksafe Training Systems Ltd | Professional & scientific | 2022 |
| Workto Ltd | Information & communication | 2025 |
| Workz Collection Ltd | Wholesale & retail | 2026 |
| WOW Brows Bar Limited | Other services | 2020 |
| Wren Day Nursery Limited | Health & social care | 2023 |
| Wright Autosolutions & Delivery Ltd | Wholesale & retail | 2021 |
| Wright Childminding Limited | Health & social care | 2021 |
| Wrightfencing Ltd | Manufacturing | 2026 |
| Wudyu Concepts Limited | Other services | 2009 |
| Wyrd GEN Ltd | Information & communication | 2025 |
| Xcel BIZ Consulting Ltd | Professional & scientific | 2025 |
| Xchange Properties Ltd | Real estate | 2020 |
| Xchanger Services Limited | Manufacturing | 1988 |
| Xcite in Cloud, IT, Telecom, Engineering & Secure IT Recycling, Data Disposals Solutions Ltd | Water & waste | 2023 |
| XDM Logistics Limited | Transport & logistics | 2020 |
| Xgrbz Limited | Manufacturing | 2025 |
| Xjmxb Ltd | Hospitality | 2024 |
| XLR8 Projects Ltd | Construction | 2026 |
| Xnkbuilding Ltd | Construction | 2026 |
| XPR (UK) Limited | Professional & scientific | 2006 |
| Xtraprintz Ltd | Manufacturing | 2023 |
| Xtraseal Ltd | Construction | 2018 |
| Y Jain Limited | Health & social care | 2009 |
| Yaneck Ltd | Administrative & support | 2017 |
| Yardbird Planning Ltd | Professional & scientific | 2014 |
| Yeem Ltd | Wholesale & retail | 2024 |
| Yellow Label Consulting Limited | Financial services | 2013 |
| Yellow Square Holdings Limited | Financial services | 2021 |
| Yelta & Partners Limited | Professional & scientific | 2025 |
| Yeti (Nuneaton) Limited | Hospitality | 2019 |
| YG-1 UK Holdings Limited | Extraterritorial | 2020 |
| Yinutri Ltd | Information & communication | 2025 |
| Yommedics Limited | Health & social care | 2025 |
| Yong FA Ltd | Hospitality | 2023 |
| York Caravan Equipments Limited | Transport & logistics | 1970 |
| YOU Inspire Ltd | Administrative & support | 2013 |
| Youcreate Designs Ltd | Information & communication | 2026 |
| Youcreate Group Ltd | Financial services | 2026 |