| Weald Marketing Services Limited | Professional & scientific | 2025 |
| Weald of Guitar Limited | Other services | 2012 |
| Wealden Consulting Ltd | Financial services | 2025 |
| Wealden Game Farms Ltd | Agriculture & fishing | 2017 |
| Wealden Garage Limited | Wholesale & retail | 2015 |
| Wealden Mobile Tyre Services Ltd | Wholesale & retail | 2025 |
| Wealden Renovations Ltd | Construction | 2024 |
| Wealden Wheels | Transport & logistics | 2003 |
| Wealth I International UK Ltd | Professional & scientific | 2025 |
| Wear Your Voice Limited | Wholesale & retail | 2016 |
| Weather & Marks Limited | Real estate | 2026 |
| Weatherall Properties Limited | Real estate | 2020 |
| Weaver Property Investment Limited | Real estate | 2021 |
| Weazel’S Wares Limited | Wholesale & retail | 2024 |
| Web Meister Ltd | Information & communication | 2018 |
| Webb Improvements Limited | Construction | 2025 |
| Webber Tyres Limited | Extraterritorial | 2012 |
| Webbs Court Management Limited | Real estate | 1988 |
| WEBECRE8IVE Ltd | Information & communication | 2024 |
| Webelec Limited | Construction | 2020 |
| Webglaze Limited | Construction | 2006 |
| Weborex Ltd | Information & communication | 2025 |
| Webster Rail Solutions Ltd | Transport & logistics | 2017 |
| Webstercomms Limited | Professional & scientific | 2022 |
| Webzoom Ltd | Information & communication | 2020 |
| Wecomm Limited | Administrative & support | 2021 |
| Weee Recycle ICT Limited | Other services | 2023 |
| Weeks Construction and Renovation Limited | Construction | 2016 |
| Weexim UK Ltd | Wholesale & retail | 2023 |
| Welcome to Essex Limited | Information & communication | 2025 |
| Well Woman Ltd | Health & social care | 2025 |
| Well-Edu CIC | Education | 2023 |
| Wells and White Bespoke Upholstery Limited | Other services | 2018 |
| Wellsies Pet Treats Ltd | Manufacturing | 2025 |
| Wendy House Productions Limited | Information & communication | 1998 |
| Wensleydale Homes Ltd | Administrative & support | 2021 |
| WEP Associates Limited | Wholesale & retail | 2001 |
| WEP Properties LLP | | 2016 |
| WEP Services Limited | Manufacturing | 1999 |
| Weslake & Company Limited | Manufacturing | 2008 |
| Wessex Garage Doors Limited | Wholesale & retail | 1989 |
| Wessex UK Ltd | Real estate | 2005 |
| West 6 Hotels Limited | Hospitality | 2011 |
| West END Group Holdings Limited | Financial services | 2025 |
| West END Property & Investments Limited | Real estate | 2025 |
| West Family Properties Limited | Real estate | 2024 |
| West Kent DAB Limited | Information & communication | 2022 |
| West London Composting Limited | Water & waste | 2000 |
| West London Services Limited | Transport & logistics | 2023 |
| West Meadows Limited | Construction | 2021 |
| West PEN Limited | Construction | 2017 |
| West Well Construction Limited | Construction | 2024 |
| West Winchester Property and Farms Ltd. | Real estate | 2020 |
| Western Euro Limited | Wholesale & retail | 2005 |
| Western Wind Limited | Wholesale & retail | 2003 |
| Westfold Properties Ltd | Real estate | 2024 |
| Westgate Fusion Ltd | Hospitality | 2025 |
| Westley Holdings South Limited | Real estate | 2019 |
| Weston Construction Management Limited | Professional & scientific | 2019 |
| Westwell (Tollmoor) Limited | Professional & scientific | 2014 |
| Westwell Court (Kent) Management Company Limited | Real estate | 1991 |
| Westwell Ltd | Wholesale & retail | 2020 |
| WEY Street Farm LLP | | 2013 |
| WFM Group Holdings Limited | Financial services | 2023 |
| WGJ OIL Services Limited | Construction | 2016 |
| What a Garden Ltd | Agriculture & fishing | 2025 |
| What WE Wear Limited | Wholesale & retail | 2012 |
| When SHE Grows UP Ltd | Information & communication | 2025 |
| Whetlor Smith Reed Construction Limited | Construction | 2025 |
| Whetlor Smith Reed Holdings Limited | Financial services | 2025 |
| Whetstone Oak Limited | Manufacturing | 2009 |
| Whisked & Baked Ltd | Hospitality | 2024 |
| Whispering Daisies Limited | Health & social care | 2022 |
| Whitaker Investment Properties Ltd | Real estate | 2018 |
| White Cars Private Hire Ltd | Transport & logistics | 2023 |
| White Cliff Freeholds Ltd | Real estate | 2025 |
| White Cliff Investments Ltd | Real estate | 2026 |
| White Horse (Boughton Under Blean) Ltd | Hospitality | 2024 |
| White Horse Wine Tours LLP | | 2026 |
| White Land Solutions Ltd | Water & waste | 2015 |
| White Lion Financial Services Ltd | Financial services | 2009 |
| Whiteford Associates Limited | Professional & scientific | 2019 |
| Whitehall Financial Media Limited | Information & communication | 2026 |
| Whitehaven Estates Limited | Construction | 2014 |
| Whitehaven MAN Press Ltd | Other services | 2022 |
| Whitehead Contracting Limited | Manufacturing | 2011 |
| Whitehead Machinery Limited | Wholesale & retail | 2002 |
| Whites Construction Management Ltd | Construction | 2023 |
| Whitford Consulting Limited | Professional & scientific | 2021 |
| Whitgof Ltd | Other services | 2020 |
| Whitney Wilson Holdings Limited | Financial services | 2017 |
| Whitstable Granite Limited | Construction | 2022 |
| Whitstable Sea Salt Trading Company Ltd | Extraterritorial | 2015 |
| Whitworth Homes Ltd | Construction | 2021 |
| WHY Batman Limited | Information & communication | 2025 |
| WHY NOT Recycle Limited | Water & waste | 2006 |
| Wickbrand Developments Limited | Construction | 2021 |
| Wickbrand Investments Limited | Real estate | 2021 |
| Wickbrand Limited | Wholesale & retail | 1999 |
| Wicken Contracting Ltd | Agriculture & fishing | 2023 |