| Unex (NO. 18) Limited | Construction | 2020 |
| Unex (NO. 20) Limited | Construction | 2020 |
| Unex (NO. 21) Limited | Construction | 2020 |
| Unex (NO. 22) Limited | Construction | 2020 |
| Unex (NO. 23) Limited | Construction | 2020 |
| Unex (NO. 24) Limited | Construction | 2020 |
| Unex (NO. 25) Limited | Construction | 2020 |
| Unex (NO. 26) Limited | Construction | 2020 |
| Unex (NO. 27) Limited | Real estate | 2020 |
| Unex (NO. 28) Limited | Real estate | 2020 |
| Unex (NO. 29) Limited | Real estate | 2020 |
| Unex (NO. 3) Limited | Real estate | 2009 |
| Unex (NO. 30) Limited | Real estate | 2020 |
| Unex (NO. 31) Limited | Real estate | 2020 |
| Unex (NO. 33) Limited | Real estate | 2020 |
| Unex (NO. 34) Limited | Real estate | 2020 |
| Unex (NO. 35) Limited | Real estate | 2021 |
| Unex (NO. 36) Limited | Real estate | 2021 |
| Unex (NO. 37) Limited | Real estate | 2022 |
| Unex (NO. 38) Limited | Real estate | 2022 |
| Unex (NO. 39) Limited | Real estate | 2022 |
| Unex (NO. 40) Limited | Real estate | 2022 |
| Unex (NO.12) Limited | Real estate | 2015 |
| Unex (NO.19) Limited | Construction | 2020 |
| Unex Competition Yard Limited | Arts & recreation | 2013 |
| Unex Towerlands Limited | Extraterritorial | 2001 |
| Union Square Properties Limited | Real estate | 1986 |
| Unique Building Services Limited | Construction | 2003 |
| Unisurge International Limited | Manufacturing | 1988 |
| Unity Restorative Practices Ltd | Education | 2020 |
| Upstream Investments Limited | Financial services | 2021 |
| UR Ltd | Extraterritorial | 2009 |
| Ureaka Fertilisers (UK) Limited | Manufacturing | 1993 |
| Usborne (DHP) Limited | Extraterritorial | 1973 |
| Usborne Developments Limited | Real estate | 1978 |
| Usborne Futures Limited | Extraterritorial | 1984 |
| Usborne Grain Limited | Professional & scientific | 1956 |
| Usborne Home Grown Limited | Extraterritorial | 1977 |
| Usborne Limited | Professional & scientific | 1966 |
| Usborne Properties Limited | Real estate | 1978 |
| Usborne Trading Limited | Manufacturing | 1994 |
| User Friendly Properties (NO. 1) Limited | Real estate | 2011 |
| User Friendly Properties (NO. 4) Limited | Real estate | 2015 |
| User Friendly Properties Limited | Real estate | 1995 |
| UX Limited | Extraterritorial | 2008 |
| UY Ltd | Extraterritorial | 2022 |
| V & N PUB Company Limited | Hospitality | 2017 |
| Valentine Properties Limited | Extraterritorial | 1987 |
| Valhalr Enterprises Limited | Health & social care | 2020 |
| Valley Way Fish and Chips Limited | Hospitality | 2024 |
| Van System Group Ltd | Manufacturing | 2026 |
| Van System Limited | Wholesale & retail | 2004 |
| Varian Property Limited | Real estate | 2016 |
| Varian Stable Limited | Professional & scientific | 2013 |
| Veerasingam Estate Ltd | Real estate | 2021 |
| Velaris Holdings Ltd | Transport & logistics | 2026 |
| Vellum Comics Ltd | Information & communication | 2024 |
| Venus Hair & Beauty (Newmarket) Limited | Other services | 2014 |
| Venus Property and Lettings Limited | Real estate | 2022 |
| Vernbec Ltd | Other services | 2016 |
| Veterinary Diagnostic Imaging Consultants Limited | Professional & scientific | 2017 |
| VF Ltd | Extraterritorial | 2009 |
| Vibezdance Limited | Arts & recreation | 2015 |
| Vicarage Meadow Management Company Limited | Households | 2007 |
| Vickery QP and Consulting Services Ltd | Professional & scientific | 2023 |
| Victor Victoria Coffee Limited | Wholesale & retail | 2019 |
| Victoria Consultancy Agency Ltd | Administrative & support | 2021 |
| Victorious Racing Ltd | Arts & recreation | 2019 |
| View Surveillance & Investigations Ltd | Administrative & support | 2019 |
| Viginext Ltd | Professional & scientific | 2025 |
| Villa Owners Club Limited | Real estate | 2012 |
| VIPER1 Security Services Ltd | Administrative & support | 2018 |
| Vision Enterprise Newmarket Ltd | Real estate | 2025 |
| Vision Seed CCM Limited | Information & communication | 2010 |
| Visionshealthcare Limited | Health & social care | 2012 |
| Vitafeeds Limited | Manufacturing | 1986 |
| Vitavet Limited | Manufacturing | 1981 |
| Vitgo Limited | Financial services | 2023 |
| Vitruvius Interior Designs Limited | Professional & scientific | 2025 |
| Vja.Whincup Properties Limited | Real estate | 2001 |
| VK Roofing Limited | Construction | 2022 |
| VL Ltd | Extraterritorial | 2009 |
| VL Store Ltd | Wholesale & retail | 2025 |
| VM Ltd | Extraterritorial | 2020 |
| Vmhosts Limited | Information & communication | 2010 |
| Vogue Athletics C.I.C. | Arts & recreation | 2018 |
| Voke Media Ltd | Information & communication | 2015 |
| VR Ltd | Extraterritorial | 2008 |
| VRC Modular Ltd | Manufacturing | 2018 |
| Vsdp Properties Ltd | Real estate | 2025 |
| VV Ltd | Wholesale & retail | 2009 |
| W J Hosegood Limited | Financial services | 2021 |
| W Limited | Extraterritorial | 2004 |
| Wadham Racing Limited | Professional & scientific | 2005 |
| Wakelin Change and Delivery Limited | Professional & scientific | 2026 |
| Wallis & Nickerson Ltd | Hospitality | 2023 |
| Walter Swinburn Limited | Agriculture & fishing | 1982 |
| Warbleton Holdings Ltd | Financial services | 2020 |
| Wares Electrical Services Ltd | Construction | 2018 |
| Warner Roofing Limited | Construction | 2016 |