| Universal Trading Serv Ltd | Construction | 2017 |
| Unlimited Meat Ltd | Hospitality | 2025 |
| Unlocking Futures Limited | Professional & scientific | 2009 |
| Unlocku Limited | Other services | 2025 |
| Unnikannan Limited | Administrative & support | 2011 |
| Uova Rosse General Services Ltd | Health & social care | 2025 |
| Upduk Ltd | Wholesale & retail | 2023 |
| Upholstery Services London Ltd | Other services | 2026 |
| Uplands Residents Association Limited | Households | 1963 |
| Uprise Property Group Ltd | Hospitality | 2026 |
| Upscale Security Services Limited | Administrative & support | 2026 |
| Upside Down Cleaning Ltd | Administrative & support | 2013 |
| Uptown Heron Restaurant Ltd | Hospitality | 2019 |
| Urban Asset Holdings Ltd | Real estate | 2025 |
| Urban Flora Limited | Wholesale & retail | 2023 |
| Urban Modern Homes Ltd | Construction | 2020 |
| Urban Trenches London Ltd | Wholesale & retail | 2018 |
| Urbanbright Property Management Limited | Real estate | 1987 |
| Urdu Point Ltd | Education | 2018 |
| URM Engineering Ltd | Professional & scientific | 2016 |
| Urmila Limited | Wholesale & retail | 2020 |
| Urvi's Hair and Beauty Ltd | Other services | 2024 |
| Usisco Limited | Other services | 2018 |
| Usmani Medical Consulting Ltd | Health & social care | 2013 |
| Usok Catering Ltd | Hospitality | 2025 |
| USP Finance Ltd | Financial services | 2025 |
| Utale&Interior Limited | Construction | 2019 |
| Utility Savers Ltd | Professional & scientific | 2025 |
| Utransport Limited | Construction | 2015 |
| Uwana Admin Services Ltd | Administrative & support | 2024 |
| Uxbridge Pizza Metry Limited | Hospitality | 2024 |
| Uzel Ltd | Real estate | 2023 |
| V Send Ltd | Financial services | 2012 |
| V&D Ceramics Ltd | Construction | 2026 |
| V&D Construct Ltd | Construction | 2020 |
| V&D Logistics Limited | Water & waste | 2025 |
| V&F Construction Ltd | Construction | 2023 |
| V&L Construct Ltd | Construction | 2022 |
| V&T Accessories Ltd | Wholesale & retail | 2023 |
| V-Dynamics Ltd | Information & communication | 2017 |
| V.I Plumbing Ltd | Other services | 2017 |
| V.M Gardening Services Limited | Administrative & support | 2021 |
| V12 Dent Ltd | Health & social care | 2016 |
| VAB Construction Ltd | Construction | 2019 |
| Vabacus Services Limited | Professional & scientific | 2010 |
| Vabacus SME Limited | Professional & scientific | 2024 |
| VAC Building Ltd | Construction | 2024 |
| Vaijab Ltd | Information & communication | 2014 |
| Vaiquest Ltd | Information & communication | 2025 |
| Vala Services Ltd | Construction | 2019 |
| Valence Ltd | Professional & scientific | 2015 |
| Valencia Cleaning Limited | Wholesale & retail | 2016 |
| Valens Contractors Ltd | Construction | 2018 |
| Valentina Property Investment Ltd | Real estate | 2020 |
| Valerie Way Limited | Households | 2022 |
| Valetop Properties Limited | Real estate | 1962 |
| Valimohamed Limited | Real estate | 2019 |
| Valjit Limited | Real estate | 2020 |
| Valmon Ltd | Construction | 2019 |
| Valor Enterprise Ltd | Wholesale & retail | 2019 |
| Valour Properties Limited | Real estate | 2025 |
| Value Drive Motors Ltd | Wholesale & retail | 2024 |
| Valy Electrostar Ltd | Construction | 2011 |
| Vama Innovators UK Ltd | Wholesale & retail | 2023 |
| Van Investment Property Ltd | Real estate | 2021 |
| Van Lear Limited | Manufacturing | 2001 |
| Vancouver Mansions RTM Company Ltd | Households | 2024 |
| Vanderwald Estates Ltd | Real estate | 2015 |
| Vanguard Fortunes Limited | Real estate | 2018 |
| Vanguard Pacific Ltd | Hospitality | 2022 |
| Vanguard Verification Ltd | Professional & scientific | 2026 |
| Vanilla Estates Limited | Real estate | 2023 |
| Vanilla Health Limited | Administrative & support | 2024 |
| Vanillia Sky Limited | Professional & scientific | 2018 |
| Vantage Lane Ltd | Transport & logistics | 2025 |
| Vanway Limited | Administrative & support | 2005 |
| Vape Guys Distribution UK Ltd | Wholesale & retail | 2020 |
| Vapeology Bar Ltd | Wholesale & retail | 2024 |
| Vapour Town Limited | Wholesale & retail | 2016 |
| Vardy RTM Company Limited | Households | 2009 |
| Varsani Consultancy Services Ltd | Administrative & support | 2009 |
| Varsani Insight Investments Limited | Real estate | 2022 |
| Varsani Limousines Limited | Transport & logistics | 1998 |
| Varsani Property Rentals Ltd | Real estate | 2024 |
| Varsani Property Services Ltd | Real estate | 2020 |
| Varush & Co Ltd | Wholesale & retail | 2024 |
| VAS Cleaning Limited | Administrative & support | 2023 |
| Vascular Health Ltd | Health & social care | 2022 |
| Vasia Properties Limited | Real estate | 2017 |
| Vasion Transport Ltd | Transport & logistics | 2025 |
| Vasiramo Ltd | Transport & logistics | 2016 |
| Vassie Ltd | Construction | 2018 |
| Vastcare Limited | Real estate | 1985 |
| Vavaa Limited | Wholesale & retail | 2019 |
| Vavuva Limited | Wholesale & retail | 2020 |
| VBK Accountancy Limited | Professional & scientific | 2017 |
| Vbuild (London) Limited | Construction | 2017 |
| VC Accountancy Services Limited | Professional & scientific | 2015 |
| VDB Building and Electrical Ltd | Construction | 2022 |
| VDH Trading Ltd | Hospitality | 2025 |