| Walton Hill Developments Limited | Construction | 2021 |
| Walton Hill Landfill Limited | Extraterritorial | 1986 |
| Walton Hill Properties Limited | Real estate | 2019 |
| Walton Lettings Ltd | Real estate | 2019 |
| Wanda Fabbri Limited | Wholesale & retail | 2024 |
| Wapping Taverns Ltd | Hospitality | 2021 |
| Waqqas Ahmed Ltd | Construction | 2025 |
| Wardasham Gems Ltd | Wholesale & retail | 2025 |
| Warm Embrace Care Ltd | Health & social care | 2024 |
| Warm Rooms Limited | Wholesale & retail | 2005 |
| Warmline WDG Ltd | Construction | 2025 |
| Warmly Care Ltd | Health & social care | 2022 |
| Warmseal Windows Home Improvements Ltd | Construction | 2026 |
| Warners Accident Repair Centre Limited | Extraterritorial | 2000 |
| Warren & Co (Complete Financial Solutions) Ltd | Financial services | 2000 |
| Warwick Fabrics (UK) Limited | Manufacturing | 1988 |
| Warwickshire Equestrian Limited | Agriculture & fishing | 2025 |
| Wasa Ltd | Transport & logistics | 2026 |
| Washable Labs Ltd | Wholesale & retail | 2024 |
| Washware Essentials Ltd | Wholesale & retail | 2011 |
| Wasley Property Management Limited | Real estate | 2025 |
| Wasted Distillery Ltd | Manufacturing | 2024 |
| Wasteparts (Cambria) Ltd | Wholesale & retail | 2025 |
| Wasteparts UK (Midlands) Ltd | Wholesale & retail | 2021 |
| Wasteparts UK (North) Ltd | Extraterritorial | 2016 |
| Wasteparts UK (South) Ltd | Extraterritorial | 2026 |
| Wasteparts UK Ltd | Wholesale & retail | 2007 |
| WATER21 Power Limited | Professional & scientific | 2014 |
| Watercoombe Working Dogs Ltd | Agriculture & fishing | 2020 |
| Waterfall Bathrooms Limited | Wholesale & retail | 1979 |
| Watergate Developers Limited | Construction | 2020 |
| Watermark and Victoria Limited | Information & communication | 2024 |
| Watermarked Ltd | Real estate | 2012 |
| Watsonian Projects Ltd | Construction | 2023 |
| Wave Solutions Ltd | Information & communication | 2023 |
| Way of WEN Ltd | Arts & recreation | 2020 |
| Wayfarer Holidays Ltd | Real estate | 2021 |
| Wayne Neville Limited | Financial services | 2012 |
| WBT Services Limited | Wholesale & retail | 2009 |
| WE ARE Horizontal Limited | Wholesale & retail | 2017 |
| WE Aviate Ltd | Transport & logistics | 2023 |
| WE DO Automate Ltd | Information & communication | 2024 |
| WE DO Awnings Limited | Construction | 2024 |
| We-Fix Machinery Limited | Manufacturing | 2009 |
| Wealth Management Consultants Limited | Administrative & support | 2013 |
| Wearkara Ltd | Wholesale & retail | 2026 |
| Weaver Bird Trading Limited | Professional & scientific | 2018 |
| Weaver Brickwork Ltd | Construction | 2025 |
| Webical Limited | Health & social care | 2018 |
| Webicious Ltd | Information & communication | 2017 |
| Webideas Limited | Professional & scientific | 2007 |
| Webified Ltd | Information & communication | 2013 |
| Webworking Ltd | Information & communication | 2020 |
| Wecare Healthcare Solutions Ltd | Health & social care | 2015 |
| Wedbolis Financial Services Limited | Financial services | 2025 |
| Wedding Cars Gloucester Ltd | Transport & logistics | 2023 |
| Welding Art Ltd | Construction | 2020 |
| Welding Mobility Limited | Manufacturing | 1999 |
| Wellington Court Gloucester Management Company 2016 Limited | Households | 2016 |
| Wellington Food UK Limited | Hospitality | 2025 |
| Wellington GL1 Ltd | Real estate | 2025 |
| Wellington Street 52 Management Company Ltd | Households | 2007 |
| Wellington Super Store Ltd | Wholesale & retail | 2021 |
| Wellness From Within Ltd | Health & social care | 2026 |
| Wells Media & Technology Academy Ltd | Information & communication | 2026 |
| Wellspring Solutions Ltd | Information & communication | 2010 |
| Wellward Consulting Ltd | Administrative & support | 2025 |
| Welwyn London Ltd | Wholesale & retail | 2025 |
| WEM Mill Developments Limited | Construction | 2010 |
| Wemno Ltd | Wholesale & retail | 2026 |
| Wesley House Events Limited | Hospitality | 2000 |
| Wessex Utility Ltd | Energy | 2020 |
| West Coast Property Development LLP | | 2010 |
| West Country Developers Limited | Construction | 2007 |
| West Country Housing Ltd | Construction | 2021 |
| West Country Tiling Ltd | Construction | 2015 |
| West Three Architects Ltd | Professional & scientific | 2020 |
| Westagg Ltd | Transport & logistics | 2021 |
| Westdean Homes Limited | Construction | 2013 |
| Western Affiliate Marketing Ltd | Wholesale & retail | 2019 |
| Western Arable Services Limited | Wholesale & retail | 1993 |
| Western Exodex Ltd | Wholesale & retail | 2025 |
| Western Theatres Limited | Information & communication | 2018 |
| Westford Construction Limited | Construction | 2025 |
| Westgate Barbers 97 Ltd | Other services | 2026 |
| Westgate Quarter Property Limited | Real estate | 2011 |
| Westgate Trading Gloucester Limited | Real estate | 2019 |
| Westn Limited | Professional & scientific | 2022 |
| Westprop Real Estate Limited | Real estate | 2017 |
| Westshires Scaffolding Ltd. | Construction | 2014 |
| Westwood Recruitment Limited | Administrative & support | 2006 |
| Wetlands Advisory Service Limited | Extraterritorial | 1995 |
| Wexera Ltd | Wholesale & retail | 2026 |
| Weyland Group (Holdings) Limited | Manufacturing | 2017 |
| Whaddon Garage Ltd | Wholesale & retail | 2014 |
| WHB Developments Limited | Construction | 2016 |
| Wheatley's Whippy Ltd | Hospitality | 2022 |
| Wheatstone Transport Ltd | Transport & logistics | 2016 |
| Wheatway Holdings Ltd | Manufacturing | 2023 |
| Wheatway Sales Limited | Education | 2019 |