| Unified Finance Ltd | Financial services | 2017 |
| Unifix (Predecessors) Limited | Professional & scientific | 1962 |
| Unique Hair ( Corsham ) Ltd | Other services | 2013 |
| United Site Services Ltd | Administrative & support | 1997 |
| Universal Promotions Limited | Construction | 1967 |
| Unlimited Realms Ltd | Manufacturing | 2020 |
| Unpick Ltd | Professional & scientific | 2024 |
| Upholstery Solutions Limited | Professional & scientific | 2006 |
| Upright Media Limited | Information & communication | 2014 |
| Uptown Studios Ltd | Information & communication | 2018 |
| Urathon Europe Limited | Wholesale & retail | 1992 |
| Urban Hive Living Ltd | Real estate | 2020 |
| Utah Limited | Hospitality | 2026 |
| Utordo Ltd | Wholesale & retail | 2018 |
| V TEN Limited | Financial services | 2021 |
| V.J. Edwards & SON Limited | Other services | 1998 |
| V12 Footwear Limited | Wholesale & retail | 2014 |
| Valentina Beauty by RIA Ltd | Other services | 2026 |
| Valentina's Orangery Limited | Hospitality | 2015 |
| Valewood Technology Limited | Information & communication | 2026 |
| Valldata Services Limited | Administrative & support | 1982 |
| Valley Fencing Limited | Construction | 2018 |
| Vanbool Ltd | Hospitality | 2015 |
| Vanda's Brilliant Cleaners Ltd | Administrative & support | 2024 |
| Vanity Construction Group Ltd | Construction | 2018 |
| Vantreo Financial Services Ltd | Financial services | 2018 |
| Vantreo Wealth Management Ltd | Financial services | 2018 |
| Vaughan's Kitchen Limited | Hospitality | 2011 |
| Vaultapp Ltd | Information & communication | 2025 |
| Vayuvata Limited | Administrative & support | 2023 |
| Vectura Delivery Devices Limited | Health & social care | 2000 |
| Vectura Group Investments Limited | Health & social care | 2010 |
| Vectura Group Limited | Health & social care | 1997 |
| Vectura Group Services Limited | Administrative & support | 1910 |
| Vectura Limited | Health & social care | 1983 |
| Vega Rios Ltd | Real estate | 2011 |
| Vehicle Restraint Services Ltd | Manufacturing | 2021 |
| Vela Apac UK Holdco Ltd | Financial services | 2023 |
| Velocity GTM Limited | Professional & scientific | 2011 |
| Velox Investments Ltd | Financial services | 2026 |
| Velvet Dinosaur Limited | Financial services | 2023 |
| Venamore Ltd | Professional & scientific | 2024 |
| Vendai Ltd | Wholesale & retail | 2025 |
| Veneto Kitchen Ltd | Hospitality | 2023 |
| Ventura International Limited | Real estate | 2024 |
| Venture House Business Service Limited | Professional & scientific | 2018 |
| Venture Tregaer Limited | Manufacturing | 2010 |
| Venus Cleaning Solutions Ltd | Administrative & support | 2020 |
| Venusuk Ltd | Hospitality | 2020 |
| Veridical Solutions Limited | Information & communication | 2022 |
| Veronika Peric Limited | Information & communication | 2024 |
| Vertigo SDC Limited | Administrative & support | 2007 |
| Veterinary Dental Products Europe Limited | Wholesale & retail | 2008 |
| Veterinary Diagnostic Imaging Limited | Professional & scientific | 2007 |
| Veterinary Export Certification Ltd | Professional & scientific | 2021 |
| Vetthing Limited | Financial services | 2025 |
| Vfinetune Limited | Information & communication | 2023 |
| Vfor Talent Ltd | Information & communication | 2021 |
| Viborg Technical Services 2011 Ltd | Information & communication | 2011 |
| Vicarage Ventures Limited | Financial services | 2010 |
| Victoria Allman Lettings Limited | Households | 2024 |
| Victoria Square Hotel Limited | Hospitality | 2014 |
| Viktus Ltd | Arts & recreation | 2021 |
| Vinall Design Ltd | Wholesale & retail | 2026 |
| Vines and Stems Ltd | Hospitality | 2026 |
| Vintage & Brown Ltd | Wholesale & retail | 2013 |
| Vintage Leisure Limited | Hospitality | 1996 |
| Vipond Developments Ltd | Administrative & support | 2019 |
| Virasata Ltd | Professional & scientific | 2016 |
| Virgin Rainforest Foundation | Agriculture & fishing | 1996 |
| Virk Cream & Cones Ltd | Wholesale & retail | 2026 |
| Virtual Cities Ltd | Information & communication | 2022 |
| Vision Town Planning Ltd | Professional & scientific | 2018 |
| Visualweb Ltd | Information & communication | 2025 |
| Viter Ltd | Transport & logistics | 2020 |
| Vivid Content Marketing Limited | Professional & scientific | 2014 |
| Vivid Wrap Limited | Manufacturing | 2007 |
| VJM Holdings Limited | Other services | 2016 |
| Volt Building Services Ltd | Construction | 2024 |
| Volted Systems Limited | Manufacturing | 2024 |
| Vulcan Heating and Plumbing Solutions Ltd | Construction | 2019 |
| VYE Ltd | Wholesale & retail | 2025 |
| W Evans Property Ltd | Real estate | 2021 |
| W Vega Property Investments Ltd | Real estate | 2022 |
| W. Carter (Haulage) Limited | Extraterritorial | 1964 |
| W. Gough (Farms) Limited | Agriculture & fishing | 1975 |
| W. Handy Limited | Agriculture & fishing | 1999 |
| W.D.W.C Limited | Construction | 2023 |
| W.P.H. Projects Limited | Construction | 2011 |
| W.S. Swift Services Limited | Construction | 1985 |
| W13 Tattoos Limited | Other services | 2014 |
| Waddington Homes Limited | Construction | 2025 |
| Wain Property and Professional Services Ltd | Real estate | 2022 |
| WAK Groundworks and Civils Ltd | Construction | 2016 |
| Walkers Bespoke Interiors Limited | Wholesale & retail | 2025 |
| Wansdyke Energy Services Limited | Administrative & support | 2010 |
| Warathai Cafe Ltd | Hospitality | 2024 |
| Warm N Cosy Ltd | Construction | 2016 |
| Warmrush Plumbing and Heating Services Ltd | Construction | 2021 |
| Warneford Properties Limited | Construction | 1986 |