| Wingman Transport Ltd | Transport & logistics | 2021 |
| Winmarleigh Holdings Limited | Real estate | 2017 |
| Winnard and Brown Properties Limited | Real estate | 2017 |
| Winnard Hamilton Limited | Real estate | 2015 |
| Winnard Sheehan Limited | Real estate | 2024 |
| Winnard Wilson Limited | Real estate | 2017 |
| Winniecom Limited | Health & social care | 2024 |
| Winn’S Plumbing and Heating Ltd | Construction | 2022 |
| Winter Commercial Services Limited | Professional & scientific | 2017 |
| Winter Hill Services Limited | Real estate | 2023 |
| Winterbottom Advisory Limited | Professional & scientific | 2026 |
| Winterfield Limited | Manufacturing | 2008 |
| Winterwarm Agri UK Limited | Wholesale & retail | 1999 |
| Winwick ABC Limited | Real estate | 2023 |
| Winwick Carnival Committee Limited | Arts & recreation | 2005 |
| Winwick Consultancy Ltd | Wholesale & retail | 2018 |
| Winwick Doors Ltd | Construction | 2020 |
| Winwick Enterprises Ltd | Professional & scientific | 2025 |
| Winwick Park Kitchens Limited | Other services | 2013 |
| Wiper Technik Ltd | Wholesale & retail | 2006 |
| Wire Cranes and Lifting Limited | Construction | 2023 |
| Wire Enterprises Limited | Construction | 2018 |
| Wire Regeneration Limited | Real estate | 2013 |
| Wire Scaffolding Services Ltd | Construction | 2020 |
| Wire Studios Limited | Information & communication | 2022 |
| Wire Taxis Ltd | Transport & logistics | 2022 |
| Wired Solutions NW Limited | Construction | 2024 |
| Wirefree Alarms Limited | Extraterritorial | 2008 |
| Wirehouse Coffee Limited | Hospitality | 2026 |
| Wirelingo Ltd | Information & communication | 2025 |
| Wiri Properties Limited | Real estate | 2025 |
| Wirral Construct Consultants Ltd | Construction | 2026 |
| Wirral Plumbing Services Limited | Construction | 2009 |
| Wirral Way Bikes Ltd | Arts & recreation | 2025 |
| Wise CAD Solutions Limited | Administrative & support | 2020 |
| Wisepath Solutions Ltd | Information & communication | 2025 |
| Wisteria Land Limited | Real estate | 2020 |
| Wisteria Lane Homes Limited | Real estate | 2025 |
| Withers Engineering Limited | Professional & scientific | 2012 |
| Witt GAS Techniques Limited | Manufacturing | 1980 |
| Wiyo Mattress Ltd | Wholesale & retail | 2024 |
| WJ Comms Ltd | Other services | 2016 |
| WJF Ltd | Other services | 2015 |
| WJR Safety Solutions Ltd | Administrative & support | 2021 |
| WJS Business Solutions Ltd | Other services | 2012 |
| WKS Construction Services Limited | Construction | 2017 |
| WL Consultants Ltd | Construction | 2025 |
| WLB Holdings Limited | Financial services | 2024 |
| WLK Holdings Limited | Real estate | 2015 |
| WLK Property Developments Limited | Real estate | 2015 |
| WM Eyecare Limited | Wholesale & retail | 2020 |
| WM Property Management and Maintenance Ltd | Households | 2021 |
| Wmdb Haulage Ltd | Transport & logistics | 2025 |
| WMS Vehicle Wraps Limited | Administrative & support | 2024 |
| WN Engineering Limited | Professional & scientific | 2022 |
| WN1 Properties Limited | Real estate | 2021 |
| Woffee Beverages Ltd | Wholesale & retail | 2024 |
| WOH Technology Limited | Administrative & support | 2018 |
| Wok's Cooking Group Limited | Hospitality | 2021 |
| Wok's Kitchen Ltd | Hospitality | 2026 |
| Wolf Collections Limited | Professional & scientific | 2026 |
| Wolf Delivery Ltd | Transport & logistics | 2021 |
| Wolf Transped Ltd | Transport & logistics | 2019 |
| Wolfe-Tech Solutions Ltd | Administrative & support | 2026 |
| Wolfram Consulting Limited | Professional & scientific | 2013 |
| Wolfsblade Limited | Professional & scientific | 2012 |
| Wolves Tavern Limited | Hospitality | 2019 |
| Woma Care Services Ltd | Health & social care | 2016 |
| Womog Ltd | Wholesale & retail | 2016 |
| Wonderland Ventures Ltd | Administrative & support | 2016 |
| Wondermaker UK Ltd | Administrative & support | 2026 |
| Wonwell Contract Services Limited | Administrative & support | 2011 |
| WOO Consultancy Limited | Professional & scientific | 2024 |
| Wood Bateman Limited | Financial services | 2023 |
| Wood Pellets (UK) Ltd | Extraterritorial | 2014 |
| Wood Stripping Ltd | Other services | 2025 |
| Wood Tech Design Ltd | Wholesale & retail | 2019 |
| Woodacre Publications Ltd | Administrative & support | 2020 |
| Woodbine Building Contractors Limited | Construction | 2004 |
| Woodfield Eddisbury Limited | Professional & scientific | 2017 |
| Woodheath Properties Ltd | Real estate | 2024 |
| Woodhor Ltd | Construction | 2026 |
| Woodhouse Properties & Developments Ltd | Real estate | 2025 |
| Woodhouse Trade Ltd | Wholesale & retail | 2026 |
| Woodies Timber Limited | Wholesale & retail | 2017 |
| Woodland Court Limited | Real estate | 2016 |
| Woodlands Accountancy Limited | Professional & scientific | 2011 |
| Woodlands Alpaca Farm Ltd | Agriculture & fishing | 2023 |
| Woodlands Design Consultants Limited | Administrative & support | 2023 |
| Woodlands Park Property Limited | Construction | 2016 |
| Woods Analysis Limited | Administrative & support | 2007 |
| Woods Lifting Ltd | Professional & scientific | 2025 |
| Woods Taverns Limited | Hospitality | 2025 |
| Woodstock Consulting Ltd | Professional & scientific | 2021 |
| Woodward Digital Limited | Manufacturing | 2023 |
| Woodward Planning Ltd | Professional & scientific | 2014 |
| Woodworks Industries Limited | Professional & scientific | 2005 |
| Woollatt Services Limited | Professional & scientific | 2015 |
| Woolston Building Services Ltd | Construction | 2025 |
| Woolston Car Centre Ltd | Wholesale & retail | 2017 |