| Vivere Lifestyle Management Limited | Administrative & support | 2023 |
| Vivid Graphics Limited | Manufacturing | 1981 |
| Vivid Prepress Limited | Manufacturing | 1999 |
| VM Building Solutions UK Limited | Wholesale & retail | 2019 |
| VMS Group UK Limited | Administrative & support | 2007 |
| Volta Education Consultants Limited | Education | 2022 |
| VV & G Ltd | Water & waste | 2022 |
| W&W Asset Management Limited | Real estate | 2019 |
| W.B. Management Limited | Households | 1994 |
| W.J. Interiors Limited | Construction | 2011 |
| W.R. Harrison Brickwork Ltd | Construction | 2012 |
| Walden Bicicletta Limited | Hospitality | 2014 |
| Walking Football World Ltd | Information & communication | 2022 |
| Walkinshaw Performance Limited | Wholesale & retail | 2004 |
| Wall House Management Limited | Other services | 2015 |
| Wallfield Limited | Information & communication | 2012 |
| Wallhouse Winski Ltd | Professional & scientific | 2013 |
| Wallpaper Parade Ltd | Manufacturing | 2025 |
| Walnut Tree House Limited | Real estate | 2025 |
| Walsham Close Management Company Ltd | Real estate | 2021 |
| Walter Cooper Surveyors Limited | Real estate | 2021 |
| Walter T. Ware Limited | Agriculture & fishing | 2014 |
| Waltham & Associates Ltd | Professional & scientific | 2019 |
| Walthamstow FC Limited | Arts & recreation | 2018 |
| Walton Road (Bushey) RTM Company Limited | Households | 2010 |
| Walton Road Management Limited | Households | 2010 |
| Waoo Properties Ltd | Real estate | 2025 |
| Ward Times Limited | Information & communication | 1989 |
| Warders Clobber Limited | Wholesale & retail | 2024 |
| Wardley Holdings Limited | Financial services | 2019 |
| Ware Automotive Limited | Wholesale & retail | 2023 |
| Ware Garages Limited(The) | Construction | 1957 |
| Ware One Limited | Hospitality | 2023 |
| Ware Roofing & Plywood Supplies Ltd. | Wholesale & retail | 2009 |
| Ware Taxis Ltd | Transport & logistics | 2019 |
| Ware to Stay Ltd | Real estate | 2024 |
| Warestore Ltd | Wholesale & retail | 2015 |
| Warm Feet Ltd | Construction | 2024 |
| Warren Terrace Freehold Limited | Real estate | 2019 |
| WAS Gathering Dust Ltd | Wholesale & retail | 2013 |
| Washbourne Holdings Limited | Financial services | 2023 |
| Washbourne Properties Limited | Real estate | 2018 |
| Washington & Co. Limited | Extraterritorial | 2023 |
| Waterford Development Projects Ltd | Construction | 2022 |
| Watergarden Maintenance Trustee Limited | Households | 2005 |
| Waters Electrical Contractor Limited | Construction | 2016 |
| Waterside Gardens Management Company Limited | Households | 1994 |
| Watson Casting Limited | Manufacturing | 2026 |
| Watton House Apartments Ltd | Households | 2018 |
| Watton House Limited | Administrative & support | 1987 |
| Waybridge Consultancy Limited | Professional & scientific | 2026 |
| WB Investments (2024) Limited | Financial services | 2024 |
| WE Buy Gizmos Ltd | Wholesale & retail | 2015 |
| WE Move Health & Fitness Ltd | Arts & recreation | 2026 |
| WE Move Homes Ltd | Transport & logistics | 2018 |
| WE Move Pilates Ltd | Arts & recreation | 2025 |
| WE Optimise Agency Limited | Administrative & support | 2013 |
| Wealth Holdings Inc Limited | Extraterritorial | 2019 |
| Wealth Holdings Ltd | Financial services | 2008 |
| Wealth Savvy Limited | Professional & scientific | 2023 |
| Wearing Holdco Ltd | Financial services | 2026 |
| Weave Ltd | Professional & scientific | 2008 |
| Web Pebble Ltd | Information & communication | 2012 |
| Webb Estate Developments Ltd | Construction | 2018 |
| Website Revamp Ltd | Information & communication | 2025 |
| Webster's Solutions Limited | Water & waste | 2022 |
| Weeks Computing Services LLP | | 2015 |
| Weezy Group Ltd | Wholesale & retail | 2019 |
| Weimplement Ltd | Administrative & support | 2020 |
| Weirgrove Automation Limited | Information & communication | 1996 |
| Welcome Home Rentals Ltd | Real estate | 2022 |
| Wellform Windows Limited | Manufacturing | 1993 |
| Wellington Care (Somerset) Limited | Health & social care | 1996 |
| Wellington Field Management Company Limited | Households | 1990 |
| Wellnorm Ltd | Administrative & support | 2017 |
| Wells Construction Limited | Construction | 2015 |
| Wendover Administration Limited | Extraterritorial | 2018 |
| Wendover Services Limited | Extraterritorial | 2017 |
| West Essex Properties Ltd | Real estate | 2018 |
| West Estates Limited | Administrative & support | 1973 |
| West One House Limited | Households | 2001 |
| West Plaza Management Limited | Households | 2013 |
| Westgate Design 2018 Limited | Administrative & support | 2018 |
| Westmill Holdings Limited | Financial services | 2023 |
| Westminster Quarter Apartments Management Company Ltd | Households | 2015 |
| Westmoor Holiday Lets Limited | Administrative & support | 2018 |
| Westonia Court RTM Company Limited | Households | 2010 |
| Westons Construction Limited | Construction | 2022 |
| Westons Plumbing & Heating Ltd | Construction | 2012 |
| Westrail Limited | Construction | 2009 |
| Westrope Bros.Limited | Transport & logistics | 1957 |
| Westside Services Limited | Professional & scientific | 2017 |
| Westy's Painting & Decorating Services Limited | Construction | 2022 |
| WGC Metals Limited | Water & waste | 2009 |
| Whats on Here Limited | Information & communication | 2025 |
| Wheatfromchaff Limited | Information & communication | 2014 |
| Wheathampstead Design Services Limited | | 1969 |
| Wheeler Hickson Limited | Administrative & support | 2008 |
| Wheeler Wood Legal Limited | Professional & scientific | 2021 |
| Whiskers Hair Ltd | Other services | 2025 |