| VP Lounges Limited | Hospitality | 2015 |
| VPK Solutions Ltd | Water & waste | 2025 |
| VPR Urban Limited | Construction | 2025 |
| VR Cleaners Ltd | Administrative & support | 2025 |
| Vr-Eng Ltd | Professional & scientific | 2016 |
| Vrddhi Fashion Ltd | Wholesale & retail | 2026 |
| Vrish Properties Ltd | Real estate | 2023 |
| VRM Consulting Limited | Information & communication | 2026 |
| VRT Consult Ltd | Professional & scientific | 2022 |
| Vrush Ltd | Wholesale & retail | 2022 |
| VS Acres Limited | Real estate | 2024 |
| VS Astwood Holdings Limited | Real estate | 2020 |
| VS Dental Limited | Health & social care | 2020 |
| VS Overseas Consultants Limited | Education | 2025 |
| Vsam Technologies Ltd. | Information & communication | 2012 |
| VSL Property Management Limited | Real estate | 2021 |
| Vsma Limited | Real estate | 2020 |
| Vsslondon Ltd | Wholesale & retail | 2023 |
| VT Property Consultants Ltd | Real estate | 2024 |
| VT Skates Ltd | Wholesale & retail | 2020 |
| Vtrax Ltd | Wholesale & retail | 2025 |
| Vudix Shipping UK Ltd | Transport & logistics | 2023 |
| VUE Solutions Ltd | Information & communication | 2011 |
| Vujon Limited | Hospitality | 2008 |
| Vulcan Cladding Systems Limited | Construction | 2017 |
| Vusane Ltd | Administrative & support | 2017 |
| VUU Limited | Information & communication | 2014 |
| Vvkzaveri Ltd | Information & communication | 2019 |
| Vvms Driveways Ltd | Construction | 2026 |
| VXA Ltd | Information & communication | 2023 |
| Vyspa Limited | Information & communication | 2010 |
| W & L Supplies Ltd | Wholesale & retail | 2021 |
| W Business Limited | Administrative & support | 2020 |
| W D Stones | Construction | 2015 |
| W Estates Holding Ltd | Real estate | 2026 |
| W G (Croydon) Limited | Wholesale & retail | 2018 |
| W Manfredi Ltd | Wholesale & retail | 2013 |
| W&A Floor Experts Ltd | Construction | 2026 |
| W&M Enterprises Ltd | Transport & logistics | 2023 |
| W&P MEP Limited | Construction | 2018 |
| W&S Consulting Ltd | Professional & scientific | 2018 |
| W. R. Royle Group Limited | Extraterritorial | 1932 |
| W. Shirley & Sons Limited | Wholesale & retail | 1978 |
| W. T. Partners Limited | Professional & scientific | 2006 |
| W.H. Smith Electrical Engineers Bromborough Limited | | 1909 |
| W.T. Partnership (U.K.) Limited | Professional & scientific | 1983 |
| W.T. Partnership - Birmingham | Professional & scientific | 1984 |
| W.T. Partnership - East Anglia | Professional & scientific | 1981 |
| W.T. Partnership - Leeds | Professional & scientific | 1981 |
| W.T. Partnership - Manchester | Professional & scientific | 1981 |
| W.T. Partnership - Newcastle | Professional & scientific | 1985 |
| W.T. Partnership - Nottingham | Professional & scientific | 1981 |
| W.T. Partnership - Wales | Professional & scientific | 1981 |
| W.T. Partnership Holdings | Professional & scientific | 1984 |
| W.T. Partnership Limited | Professional & scientific | 1973 |
| W1LDCAT Limited | Real estate | 2026 |
| Waam 16 Limited | Households | 1995 |
| Waddon Cleaning Ltd | Other services | 2018 |
| Waddon Court(Investments)Limited | Financial services | 1958 |
| Waddon Court(Properties)Limited | Real estate | 1958 |
| Waddon Local Limited | Wholesale & retail | 2026 |
| WAH Gwaan Jamaican Jerk Center Ltd | Hospitality | 2025 |
| Wahaguru Ltd | Real estate | 2022 |
| Wahed Domestic Services Ltd | Construction | 2023 |
| Waheguru International Ltd | Wholesale & retail | 2019 |
| Waincare Limited | Health & social care | 2019 |
| Wainwright Shaw Limited | Administrative & support | 2006 |
| Wake Media Group Limited | Financial services | 2021 |
| Wakefield Court RTM Company Limited | Households | 2010 |
| Wakeling Court Management Company Limited | Households | 2023 |
| Wakeman Trower and Associates | Professional & scientific | 1978 |
| Wakeman Trower Macfarlane Cash Partnership | Professional & scientific | 1994 |
| Waldeck Limited | Construction | 2025 |
| Waldeck Road (Luton) Management Company Limited | Households | 1987 |
| Waldon Trading Limited | Wholesale & retail | 2022 |
| Waldronhyrst (Freehold) Limited | Households | 1995 |
| Waleed Associates Limited | Construction | 2024 |
| Walizadea Investments Ltd | Real estate | 2023 |
| Walk Properties Limited | Real estate | 2022 |
| Walken Limited | Real estate | 1999 |
| Walker Computer Solutions Limited | Information & communication | 2021 |
| Walkers ATC Limited | Wholesale & retail | 2025 |
| Walkers Enterprises Ltd | Real estate | 2021 |
| Walking Tall Limited | Education | 1997 |
| Walkwell Limited | Education | 2015 |
| Walkwithmeuk CIC | Education | 2019 |
| Wallace Building Management Limited | Households | 2003 |
| Wallace Place (Carshalton) Management Company Limited | Households | 2015 |
| Wallfry Ltd | Wholesale & retail | 2019 |
| Wallingford Energy Partners Ltd | Professional & scientific | 2020 |
| Wallington Scaffolding Limited | Construction | 1988 |
| Wallis Partnership Ltd | Professional & scientific | 2002 |
| Walnut Road Torquay Ltd | Wholesale & retail | 2025 |
| Walters Scaffolding Services Limited | Wholesale & retail | 2002 |
| Walton and Graham Ltd | Information & communication | 2025 |
| Walton Grange Management Company Limited | Households | 2004 |
| Walton on Thames Cars Ltd | Transport & logistics | 2025 |
| WAM Electricals Ltd | Construction | 2019 |
| Wamuza Ltd | Transport & logistics | 2025 |
| Wancom Community | Education | 2022 |