| Ultimate Reglaze Limited | Construction | 2021 |
| Ulyett Draughting Services Ltd | Professional & scientific | 2013 |
| Umar Jewellers Ltd | Other services | 2025 |
| UMR Automotive Sales Ltd | Wholesale & retail | 2025 |
| Uncaged Society Ltd | Wholesale & retail | 2020 |
| Uncreate Limited | Wholesale & retail | 2024 |
| Uncreated Limited | Wholesale & retail | 2024 |
| Undersea Adventures Limited | Other services | 1995 |
| Undivided Coaching Ltd | Arts & recreation | 2021 |
| Uniq Recycling Ltd | Information & communication | 2017 |
| Uniqobs Ltd | Wholesale & retail | 2023 |
| Unique Motorcycles Ltd | Wholesale & retail | 2025 |
| Unique PUB Hospitality Limited | Hospitality | 2025 |
| Unique Transport Services Limited | Transport & logistics | 2017 |
| Unirox Limited | Construction | 2020 |
| Unite Flooring Holdings Ltd | Financial services | 2019 |
| Unite Flooring Ltd | Construction | 2013 |
| Unite Group Services Limited | Construction | 2019 |
| United Haulage Ltd | Transport & logistics | 2016 |
| Universal Finds Hub Ltd | Wholesale & retail | 2024 |
| UP Market Estates Ltd | Real estate | 2018 |
| Uphill SKI Club of Great Britain(The) | Administrative & support | 1982 |
| Upland Ventures Ltd | Administrative & support | 2026 |
| UPN Logistics Limited | Transport & logistics | 2024 |
| Upstep Foot Care Solutions Ltd | Professional & scientific | 2024 |
| Upstep UK Foot Care Solutions Ltd | Professional & scientific | 2020 |
| Upton Media Ltd | Professional & scientific | 2023 |
| Upton Roofing and Cladding Services Limited | Construction | 2017 |
| UR Workwear Ltd | Manufacturing | 2024 |
| Urban Designs Limited | Professional & scientific | 2002 |
| Urban Eden Group Limited | Hospitality | 2023 |
| Urban Healthcare Limited | Wholesale & retail | 2010 |
| Urban PIE Limited | Hospitality | 2026 |
| Urban Safe Ltd Ltd | Transport & logistics | 2025 |
| USH Foods Ltd | Hospitality | 2025 |
| Usurper Limited | Wholesale & retail | 2019 |
| USV Holdings Limited | Wholesale & retail | 2022 |
| Utility Hygiene Property Services Limited | Administrative & support | 2016 |
| Uvion Limited | Wholesale & retail | 2026 |
| UVS Law Limited | Professional & scientific | 2022 |
| Uxbridge Associates Ltd | Real estate | 2025 |
| Uxbridge Store Limited | Wholesale & retail | 2026 |
| V K YIM Limited | Real estate | 2010 |
| V12 Car Sales Limited | Wholesale & retail | 2010 |
| V12 Group Limited | Other services | 2008 |
| V29VGSB Ltd | Other services | 2020 |
| V8 Investments Ltd | Real estate | 2010 |
| Vadim Express Ltd | Construction | 2018 |
| Valentech Ltd | Information & communication | 2025 |
| Valexo Limited | Wholesale & retail | 2026 |
| Valleybridge Projects Limited | Construction | 2023 |
| Valsteel Ltd | Construction | 2018 |
| Value in Approach Limited | Professional & scientific | 2001 |
| Value Ventures Limited | Wholesale & retail | 2024 |
| Valueville Ltd | Wholesale & retail | 2026 |
| Vambe Healthcare Limited | Health & social care | 2018 |
| Vamoosh Films Limited | Information & communication | 2011 |
| Van DER Williams LLP | | 2025 |
| Vanags and Co Ltd | Hospitality | 2026 |
| Vanguard Automotive Limited | Administrative & support | 2014 |
| Vanilla Leisure Limited | Wholesale & retail | 2021 |
| Vanly System Limited | Information & communication | 2025 |
| Vantage Imagery Limited | Professional & scientific | 2022 |
| Vantagepoint Consultancy Ltd | Information & communication | 2015 |
| VC9 Ltd | Real estate | 2021 |
| VCA Trans Ltd | Transport & logistics | 2026 |
| VCM02 Ltd | Transport & logistics | 2023 |
| Vehicle Space Ltd | Wholesale & retail | 2021 |
| Velvique Beauty Ltd | Wholesale & retail | 2025 |
| Velvita Shop Ltd | Wholesale & retail | 2025 |
| Veneziaa Bar & Restaurant Ltd | Hospitality | 2020 |
| Ventalink Distribution Limited | Manufacturing | 2023 |
| Ventechnik Holdings Group Limited | Financial services | 2026 |
| Ventechnik Limited | Construction | 2015 |
| Ventura Capital Developments Ltd | Construction | 2025 |
| Verisafe (Derby) Limited | Construction | 2010 |
| Vernier Holdings Ltd | Financial services | 2019 |
| Versatile Mechanical Services Ltd | Construction | 2018 |
| Vertex Technologys Limited | Information & communication | 2025 |
| Vertexiq Ltd | Information & communication | 2025 |
| VES 10 Limited | Construction | 2016 |
| VET for Paws Limited | Professional & scientific | 2025 |
| Vets at Ltd | Professional & scientific | 2024 |
| Vianu Ltd | Wholesale & retail | 2022 |
| Vibe Furniture Ltd | Wholesale & retail | 2023 |
| Victoria Cars Ltd | Wholesale & retail | 2025 |
| Victoria Law Solicitors Ltd | Professional & scientific | 2023 |
| Victoria's PAW Pasture Ltd | Real estate | 2022 |
| Victory RO Trans Limited | Transport & logistics | 2025 |
| Vid-Naaz Ltd | Wholesale & retail | 2025 |
| Viewmygig Ltd | Information & communication | 2015 |
| Villa Properties Limited | Real estate | 2007 |
| Vinero Limited | Information & communication | 2026 |
| Vintage Burgundy Limited | Professional & scientific | 2023 |
| Virgeco Limited | Wholesale & retail | 2024 |
| Virtual Essence Limited | Information & communication | 2025 |
| Virtual Therapies Ltd | Extraterritorial | 2024 |
| Visdata Holdings Ltd | Financial services | 2022 |
| Visdata Limited | Information & communication | 2012 |
| Vishnu PVT Ltd | Wholesale & retail | 2024 |