| Unitech Assets Ltd | Real estate | 2019 |
| United Automobile Services Limited | Transport & logistics | 2026 |
| United Business Plus Limited | Other services | 2017 |
| Universal Hydraulics Limited | Extraterritorial | 1974 |
| Universal Shopping Ltd | Wholesale & retail | 2016 |
| Untouchable HQ Ltd | Wholesale & retail | 2026 |
| UP North Crew Ltd | Arts & recreation | 2019 |
| UPF International Ltd | Wholesale & retail | 2024 |
| Uppr Electrical Ltd | Construction | 2024 |
| UQ Investments Ltd | Real estate | 2022 |
| Urban Beds Ltd | Wholesale & retail | 2020 |
| Urban Courtyard Ltd | Hospitality | 2025 |
| Urban Craft Designs Ltd | Manufacturing | 2024 |
| Urban Hub Consultants Ltd | Real estate | 2024 |
| Urban Nest Furnishings Ltd | Wholesale & retail | 2025 |
| Urban Trading Consultants Ltd | Information & communication | 2024 |
| Urban Vista Estate Ltd | Real estate | 2023 |
| Urca Solutions Ltd | Professional & scientific | 2015 |
| Usama Usama Ltd | Wholesale & retail | 2025 |
| Usman Akram Locum Ltd | Health & social care | 2013 |
| Usman Fastfood Ltd | Hospitality | 2024 |
| Uwiuwi Ltd | Wholesale & retail | 2025 |
| Uzair Iqbal Inc Limited | Extraterritorial | 2025 |
| Vaal Investments Limited | Real estate | 1996 |
| Valiance Security Ltd | Administrative & support | 2025 |
| Valley Road Management Company Limited | Households | 1990 |
| Valli LLP | | 2008 |
| Valoura Retail Group Limited | Wholesale & retail | 2026 |
| Van Stapele Housing Ltd | Real estate | 2026 |
| Vape Dream Ltd | Wholesale & retail | 2024 |
| Vape Lords Ltd | Wholesale & retail | 2025 |
| Vapeway Lounge Group Ltd | Wholesale & retail | 2024 |
| Vaping Crazy Ltd | Wholesale & retail | 2017 |
| Vehicle Admin Services Limited | Public administration | 2026 |
| Vehicle Repair Brokers Ltd | Wholesale & retail | 2019 |
| Vellara Beds Ltd | Wholesale & retail | 2025 |
| Venations Limited | Construction | 2020 |
| Vencier Ltd | Wholesale & retail | 2018 |
| Vending Supplies Online Ltd | Wholesale & retail | 2022 |
| Vento Pizza Ltd | Hospitality | 2018 |
| Venuus Limited | Information & communication | 2021 |
| Verbadu Trading Ltd | Wholesale & retail | 2020 |
| Veritas Future Care Ltd | Health & social care | 2025 |
| Veritazs Limited | Information & communication | 2003 |
| Verity Care Homes Ltd | Health & social care | 2025 |
| VERTO5 Ltd | Wholesale & retail | 2025 |
| Vexaweb Limited | Information & communication | 2023 |
| Vibe Branding Co. Ltd | Professional & scientific | 2025 |
| Victoria Investments (Dewsbury) Limited | Real estate | 2019 |
| Victoria Suite Limited | Hospitality | 2014 |
| Vidi VI Limited | Wholesale & retail | 2022 |
| Viktoria Oguz Ltd | Wholesale & retail | 2025 |
| Village Beds Ltd | Manufacturing | 2021 |
| Vino Beds Ltd | Wholesale & retail | 2021 |
| VIP Fitness Limited | Arts & recreation | 2023 |
| VIP Persia Kitchen Ltd | Hospitality | 2026 |
| Vip'Z Limited | Other services | 2017 |
| VIR Electrical Solutions Ltd | Extraterritorial | 2024 |
| Vlad Moca Limited | Health & social care | 2022 |
| Vogue Property Group Ltd | Real estate | 2020 |
| VR Smart Consulting Ltd | Information & communication | 2019 |
| VSN Ltd | Real estate | 2020 |
| W G Commercial Services Limited | Wholesale & retail | 1999 |
| W V C C Ltd | Hospitality | 2024 |
| W. B. Truck & Trailer Services Limited | Wholesale & retail | 2023 |
| W.E. O'Donnell (Estates) Limited | Construction | 1975 |
| W.E. O'Donnell Developments Limited | Construction | 1990 |
| W.Y. Construction Limited | Construction | 2024 |
| W2HF Limited | Transport & logistics | 2025 |
| Wakaas Healthcare Management Ltd | Health & social care | 2018 |
| Wakefield Garage Doors Ltd | Manufacturing | 2007 |
| Wakefield Sand and Gravel Limited | Mining & quarrying | 2020 |
| Waleed Consultants Limited | Information & communication | 2015 |
| Walter West Builders Limited | Construction | 1980 |
| Walter West Holdings Ltd | Financial services | 2025 |
| Waqar ALI Delivery Ltd | Transport & logistics | 2026 |
| Ward Fabrications Limited | Manufacturing | 1995 |
| Warmaway Mechanical Limited | Construction | 2020 |
| Warmaway Properties Limited | Real estate | 2021 |
| Warrior Breed Boxing Ltd | Arts & recreation | 2019 |
| Warrior Kids Ltd | Arts & recreation | 2025 |
| Warung Padang Ltd | Wholesale & retail | 2020 |
| Warwick Street Holdings Ltd | Financial services | 2022 |
| Warwick Street Ltd | Financial services | 2014 |
| Waseem & Co Limited | Professional & scientific | 2010 |
| Washd Group Ltd | Administrative & support | 2025 |
| Washtex Ltd | Wholesale & retail | 2020 |
| Water Sales UK Ltd | Wholesale & retail | 2025 |
| Water Testing Supplies Limited | Wholesale & retail | 2013 |
| Watergates Construction Ltd | Construction | 2011 |
| Watermark Packaging Limited | Extraterritorial | 1996 |
| Watermark Publishing Limited | Extraterritorial | 1990 |
| Wath Concrete Products Limited | Extraterritorial | 2015 |
| Waves Living Limited | Wholesale & retail | 2025 |
| WBM International PVT Ltd | Administrative & support | 2016 |
| WE Buy ANY Machine Ltd | Extraterritorial | 2024 |
| WE Wrap Anything Ltd | Wholesale & retail | 2020 |
| Wear at Work Ltd | Wholesale & retail | 2025 |
| Websure CIC | Information & communication | 2022 |
| Wedding Car Hire Yorkshire Ltd | Administrative & support | 2024 |