| Ward International Consulting Limited | Administrative & support | 1989 |
| Warm Garden Limited | Wholesale & retail | 2014 |
| Warminster Specsavers Hearcare Limited | Wholesale & retail | 2018 |
| Warmstay Limited | Real estate | 2023 |
| Warmstone Homes Ltd | Construction | 2024 |
| Warner Carpentry Limited | Manufacturing | 2014 |
| Warner Goodman LLP | | 2006 |
| Warren Anthony Hair Salon Ltd | Other services | 2026 |
| Warren Heath Specsavers Limited | Wholesale & retail | 2018 |
| Warrington Domi Audiology Specsavers Limited | Wholesale & retail | 2023 |
| Warrington Domiciliary Specsavers Limited | Wholesale & retail | 2022 |
| Warrington Specsavers Hearcare Limited | Wholesale & retail | 2005 |
| Warrington Specsavers Limited | Wholesale & retail | 1991 |
| Warrington Visionplus Limited | Wholesale & retail | 1993 |
| Wartsila Energy Storage UK Ltd | Construction | 2023 |
| Wartsila UK Holding International Limited | Financial services | 2006 |
| Wartsila UK Holding Limited | Financial services | 1962 |
| Wartsila UK Limited | Manufacturing | 1971 |
| Warwick & SON Limited | Construction | 2003 |
| Warwick Domi Audiology Specsavers Limited | Wholesale & retail | 2023 |
| Warwick Specsavers Limited | Wholesale & retail | 2022 |
| Washington Galleries Specsavers Limited | Wholesale & retail | 2018 |
| Washington Specsavers Hearcare Limited | Wholesale & retail | 2018 |
| Washington Specsavers Limited | Wholesale & retail | 1996 |
| Waterfront Digital Marketing Ltd | Professional & scientific | 2017 |
| Waterloo Lodge School Ltd. | Real estate | 2000 |
| Waterlooville Carpets Limited | Wholesale & retail | 1966 |
| Waterlooville Visionplus Limited | Wholesale & retail | 2001 |
| Waterman Plastering Limited | Construction | 2017 |
| Waterside Accountants Ltd | Professional & scientific | 2017 |
| Waterside Carpets Limited | Wholesale & retail | 2005 |
| Watford Specsavers Hearcare Limited | Wholesale & retail | 2005 |
| Watkinson MSK Limited | Health & social care | 2018 |
| Watling Grange Harrogate GP Limited | Financial services | 2021 |
| Watling Grange Harrogate LP | | 2022 |
| Watson Social League Ltd | Arts & recreation | 2023 |
| Wavecrest Talent Group Limited | Financial services | 2025 |
| Wavecrest Talent Limited | Administrative & support | 2025 |
| Waxed BAT Properties Ltd | Real estate | 2016 |
| Waynedd Enterprises Ltd | Wholesale & retail | 2019 |
| WBL Ltd | Transport & logistics | 2024 |
| WDP Flooring Ltd | Construction | 2024 |
| WE ARE Adoré London Limited | Other services | 2024 |
| WE Automotive Ltd | Wholesale & retail | 2023 |
| WE CAN Clean IT Ltd | Administrative & support | 2020 |
| WE Sell Steels Limited | Construction | 2023 |
| Wealdstone Specsavers Limited | Wholesale & retail | 2017 |
| Weareravenous Ltd | Manufacturing | 2017 |
| Weatherite Contracts Limited | Construction | 1999 |
| Webbla Ltd | Information & communication | 2021 |
| Webedee Ltd | Information & communication | 2012 |
| Webkick Ltd | Information & communication | 2012 |
| Weblissimo Limited | Information & communication | 2012 |
| Webuyanyphone Limited | Wholesale & retail | 2012 |
| Wednesfield Specsavers Limited | Wholesale & retail | 2018 |
| Weedman Two Limited | Administrative & support | 2022 |
| Weeihang Limited | Wholesale & retail | 2023 |
| Weekday Workday Walkies Ltd | Other services | 2021 |
| Weissfeld Consulting Limited | Professional & scientific | 2010 |
| Welborne Bodyworks Ltd | Wholesale & retail | 2023 |
| Wellbond Retreats Limited | Administrative & support | 2024 |
| Wellfight CIC | Health & social care | 2025 |
| Wellingborough Specsavers Hearcare Limited | Wholesale & retail | 2025 |
| Wellingborough Specsavers Limited | Wholesale & retail | 1997 |
| Wellingborough Visionplus Limited | Wholesale & retail | 1998 |
| Wellington Specsavers Limited | Wholesale & retail | 1999 |
| Wellness Collective Club Ltd | Education | 2025 |
| Wellness Yard Fareham Ltd | Arts & recreation | 2025 |
| Wells Specsavers Limited | Wholesale & retail | 2002 |
| Wellsprings Services Ltd | Information & communication | 2026 |
| Welshpool Specsavers Limited | Wholesale & retail | 2017 |
| Welwyn Garden City Specsavers Hearcare Limited | Wholesale & retail | 2022 |
| Welwyn Garden City Specsavers Limited | Wholesale & retail | 1997 |
| Welwyn Garden City Visionplus Limited | Wholesale & retail | 1998 |
| Wembley Park Specsavers Limited | Wholesale & retail | 2018 |
| Wenman Carpentry Ltd | Construction | 2017 |
| Wesley Water Softeners Limited | Water & waste | 2025 |
| Wessex Demolition & Crushing Services Limited | Construction | 2011 |
| Wessex Funeral Training Limited | Education | 2019 |
| Wessex Hearing Holdings Limited | Wholesale & retail | 2023 |
| Wessex Labels Limited | Manufacturing | 1995 |
| Wessex Stem Academy Ltd | Education | 2025 |
| Wessex Welding and Fabrications Ltd | Manufacturing | 2023 |
| West Africa 4X4 Limited | Wholesale & retail | 2017 |
| West Awake Ltd | Financial services | 2025 |
| West Bridgford Specsavers Limited | Wholesale & retail | 2008 |
| West Bridgford Visionplus Limited | Wholesale & retail | 2008 |
| West Bromwich Specsavers Limited | Wholesale & retail | 1986 |
| West Brook View Ltd | Wholesale & retail | 2020 |
| West Cheshire Newmedica Limited | Health & social care | 2023 |
| West Drayton Specsavers Limited | Wholesale & retail | 2017 |
| West END Events Limited | Professional & scientific | 1995 |
| West END Land Company Limited | Other services | 1987 |
| West END Works Creative Ltd | Manufacturing | 2023 |
| West Hampstead Specsavers Limited | Wholesale & retail | 2023 |
| West Newnham Limited | Construction | 2003 |
| West Park Farm Specsavers Limited | Wholesale & retail | 2018 |
| West Quay Container Services Limited | Information & communication | 2005 |
| West Street Food Ltd | Wholesale & retail | 2023 |
| West Wickham Specsavers Limited | Wholesale & retail | 2007 |