| Voltshare Ltd | Manufacturing | 2019 |
| Vordere Limited | Other services | 2011 |
| Vowch Tech Limited | Wholesale & retail | 2026 |
| Voxal Consulting Limited | Professional & scientific | 2020 |
| Voysey & Hall Ltd | Real estate | 2015 |
| VPJ Healthcare Services Inc Ltd | Health & social care | 2025 |
| Vsds Retails Ltd | Wholesale & retail | 2025 |
| Vsecuriti Ltd | Administrative & support | 2026 |
| VT UK Foods Limited | Wholesale & retail | 2025 |
| Vtar Retail Ltd | Hospitality | 2026 |
| VUI Group Ltd | Information & communication | 2020 |
| VV Holdings Limited | Hospitality | 2022 |
| VWJ Ltd | Professional & scientific | 2010 |
| Vynde Ltd. | Real estate | 2011 |
| W & M Refrigeration Limited | Manufacturing | 2012 |
| W B Consultants Limited | Professional & scientific | 1998 |
| W Edwards Electrical Limited | Construction | 2011 |
| W J Cook and Sons (Marlborough) Limited | Other services | 2022 |
| W L Humm Roofing Services Limited | Construction | 2014 |
| W P Mortgage Limited | Financial services | 2016 |
| W R Ferris Limited | Wholesale & retail | 1978 |
| W R M Properties Limited | Real estate | 1995 |
| W W Fonts Limited | Wholesale & retail | 1996 |
| W Walk Residential Management Company Limited | Households | 2014 |
| W&S Property Company Ltd | Real estate | 2018 |
| W. C. Evans & Sons (Holdings) Limited | Professional & scientific | 1989 |
| W.C. Evans & Sons (Engineers) Limited | Manufacturing | 1979 |
| W.C. One Limited | Wholesale & retail | 1987 |
| W28M Ltd | Real estate | 2022 |
| Waddell Holdings Limited | Financial services | 2009 |
| Wade House E2 Freehold Ltd | Households | 2025 |
| Wade House Management Ltd | Households | 2017 |
| Wade Mastery Limited | Manufacturing | 2025 |
| Waffle on a Stick Limited | Hospitality | 2016 |
| Waheed Healthcare Limited | Administrative & support | 2015 |
| Waldrons Gardens Management Limited | Households | 1966 |
| Waleorde Road (London) RTM Company Limited | Real estate | 2019 |
| Walkers Developments Limited | Real estate | 2018 |
| Walkers Properties (Kent) Limited | Households | 2017 |
| Walkinglondontours Limited | Administrative & support | 2024 |
| Walkins News Limited | Wholesale & retail | 2012 |
| Wallington Property Limited | Households | 2001 |
| Walls Waste and Maintenance Ltd | Construction | 2025 |
| Walters-Wright Psychological Associates Ltd | Health & social care | 2024 |
| Walton & Davis Ltd | Wholesale & retail | 2007 |
| Walton Holdings (UK) Limited | Real estate | 2009 |
| Walton House (TW) Limited | Real estate | 2022 |
| Wamadiq Limited | Wholesale & retail | 2022 |
| Wanstead (Freehold) Properties Limited | Real estate | 2025 |
| Wanstead Properties Limited | Real estate | 2017 |
| WAR Horse Trading Ltd | Information & communication | 2010 |
| Warchest Limited | Information & communication | 2011 |
| Ward Immigration Ltd | Professional & scientific | 2023 |
| Warden House Management Limited | Households | 1982 |
| Warders Property Limited | Real estate | 2014 |
| Wardlets Limited | Real estate | 1959 |
| Wards (Surveys) Limited | Construction | 2018 |
| Ware Heating and Bathroom Supplies Limited | Wholesale & retail | 1988 |
| Warhorse Partners Limited | Professional & scientific | 2017 |
| Warman Sports Club Limited | Arts & recreation | 2015 |
| Warne Creative Ltd | Professional & scientific | 2026 |
| Warne Management Limited | Professional & scientific | 2023 |
| Warner & Metis Consulting Ltd | Professional & scientific | 2026 |
| Warren Investment Properties Ltd | Real estate | 2022 |
| Warren Technology Limited | Information & communication | 1997 |
| Warrior Industries Ltd | Education | 2024 |
| Warrioralarms Ltd | Administrative & support | 2023 |
| Warwick Global Education Limited | Education | 2024 |
| Wash & Press Ltd | Other services | 2025 |
| Wasserman Group Limited | Professional & scientific | 2022 |
| Wassertrager Ltd | Information & communication | 2016 |
| Wastespresso Ltd | Wholesale & retail | 2026 |
| WATER2BUY Limited | Water & waste | 2016 |
| Waterline House RTM Company Limited | Households | 2024 |
| Waters Weal Ltd | Administrative & support | 2023 |
| Waterside Management Company Limited | Households | 1973 |
| Waterside Park (Walton) Management Company Limited | Households | 1989 |
| Watersidehouse Location Limited | Other services | 2013 |
| Waterstone Residential Care Ltd | Health & social care | 2015 |
| Waterworx Limited | Construction | 2006 |
| Watson Place (Croydon) NO 1 RTM Company Limited | Real estate | 2018 |
| Watson Place (Croydon) NO 2 RTM Company Limited | Real estate | 2018 |
| Watson Place (Croydon) NO 3 RTM Company Limited | Real estate | 2018 |
| Waves Mindfulness and Wellbeing Ltd. | Health & social care | 2016 |
| Wayfarer Wines LLP | | 2016 |
| Wayne Moran Design Limited | Information & communication | 2011 |
| Wayre House Electrical Services Ltd | Construction | 2014 |
| WBO Builders Ltd | Construction | 2010 |
| WBT Trading Company | | 1989 |
| Wcrv Services Ltd | Construction | 2024 |
| WCW Investments Limited | Real estate | 2022 |
| WE ARE Kleer Ltd | Professional & scientific | 2019 |
| WE ARE One Experiences Ltd | Other services | 2026 |
| WE ARE the Company Ltd | Wholesale & retail | 2025 |
| WE ARE Two Co. Ltd | Manufacturing | 2015 |
| WE ARE Untitled Limited | Information & communication | 2022 |
| WE for YOU World Ltd | Education | 2025 |
| WE Love Pets Maidstone Ltd | Other services | 2022 |
| Wealth Masters Ltd | Financial services | 2025 |
| Weather B Limited | Manufacturing | 2012 |