| Typhoon Kitchen Ltd | Hospitality | 2021 |
| TZZ Consultants Ltd | Professional & scientific | 2013 |
| U & R 51 Ltd | Real estate | 2019 |
| U.P Catering Limited | Hospitality | 2024 |
| Ubms International Ltd | Professional & scientific | 2019 |
| Ubox Ltd | Professional & scientific | 2019 |
| Ugras Medical Travel Limited | Administrative & support | 2024 |
| UIT Development Limited | Real estate | 2007 |
| Ujamaa Property Group Limited | Real estate | 2021 |
| UK Exchange Curancey Limited | Financial services | 2020 |
| UK Food and Wine (London) Limited | Wholesale & retail | 2020 |
| UK Garanti Builders Ltd | Construction | 2023 |
| UK Tax Partners Accountants & Tax Advisers Ltd | Professional & scientific | 2024 |
| UK Trade & Business Advisory Ltd | Transport & logistics | 2019 |
| UKA Services Ltd | Construction | 2017 |
| Ukfp Ltd | Manufacturing | 2022 |
| ULS & SON (Heathrow) Limited | Transport & logistics | 2009 |
| Ultima Capital UK Limited | Real estate | 2023 |
| Ultimate Gift Hampers Ltd | Wholesale & retail | 2022 |
| Uluslararasi Yakin Dogu Universitesi Limited | Extraterritorial | 2013 |
| Umbur Aviation Limited | Manufacturing | 2024 |
| Umut Aslan Limited | Hospitality | 2026 |
| Umut Derya Limited | Hospitality | 2016 |
| Unicana Ltd | Wholesale & retail | 2025 |
| Unicanauk Ltd | Wholesale & retail | 2025 |
| Unicorn Projects Care Services Limited | Health & social care | 2019 |
| Unicorn Property Solutions Limited | Real estate | 2019 |
| Unified Business Management Solutions Ltd | Information & communication | 2019 |
| Unified Window Cleaning Ltd | Administrative & support | 2023 |
| Unique Housing Solutions Limited | Professional & scientific | 2013 |
| United Distributors Limited | Wholesale & retail | 2010 |
| Universal Brands Group Limited | Extraterritorial | 2016 |
| Universal Education Group Limited | Education | 2008 |
| Universal Finance Group Limited | Extraterritorial | 2008 |
| Unknown Global Ltd | Arts & recreation | 2023 |
| Unlmtd Electrical Group Ltd | Construction | 2021 |
| Upton Services Limited | Construction | 1993 |
| Urban Edge Films Limited | Information & communication | 2010 |
| Urban Kraft Studios Ltd | Professional & scientific | 2021 |
| Urostomy Association | Other services | 2009 |
| V Repairs Ltd | Other services | 2024 |
| V-Group Dwellings Ltd | Real estate | 2023 |
| V.O. Art Ltd | Information & communication | 2011 |
| V2R Scaffold Access Limited | Construction | 2022 |
| Vale Cafe (UK) Limited | Hospitality | 2017 |
| Valet Boutique Ltd | Administrative & support | 2021 |
| Valicore Limited | Information & communication | 2026 |
| Valley Kebabs Limited | Hospitality | 2009 |
| Van Lock Centre Limited | Wholesale & retail | 2025 |
| Vantage Play Ltd | Arts & recreation | 2025 |
| Vari Knowledge Partners Ltd | Education | 2023 |
| Varli Property Limited | Real estate | 2020 |
| Vault Vend Ltd | Wholesale & retail | 2026 |
| Veatreey Development Ltd | Wholesale & retail | 2005 |
| Vectis House Management Ltd. | Households | 2014 |
| Vectra Consulting Ltd | Professional & scientific | 1999 |
| Vediti Limited | Information & communication | 2016 |
| Veetals Ltd | Information & communication | 2025 |
| Venix Ltd | Wholesale & retail | 2026 |
| Venture International FM Limited | Construction | 1998 |
| Venture Vibe Travel Ltd | Administrative & support | 2025 |
| Verma Technology Services Limited | Professional & scientific | 2025 |
| Versalocksmiths Ltd | Construction | 2026 |
| Vertex Programme & Operations Ltd | Professional & scientific | 2026 |
| Vertical Engineering Ltd | Professional & scientific | 2019 |
| Verve IT Support Ltd | Information & communication | 2024 |
| Vestia London Limited | Manufacturing | 2020 |
| Vhaashi Bloom Ltd | Other services | 2025 |
| Viasure IT Services Limited | Information & communication | 2016 |
| Vibrations of Wellness Ltd | Wholesale & retail | 2026 |
| Victor Clifford Solicitors Limited | Professional & scientific | 2010 |
| Victress Communications Ltd | Professional & scientific | 2020 |
| Villa Advisor Limited | Extraterritorial | 2014 |
| Village Fryers Kent Limited | Hospitality | 2018 |
| Village Spice (Sanderstead) Ltd | Hospitality | 2018 |
| Villiers Corporation Limited | Professional & scientific | 2021 |
| Vinava Ltd | Information & communication | 2026 |
| Vinoreview Limited | Information & communication | 2025 |
| Vinothkumar Subramani Ltd | Administrative & support | 2019 |
| Vintistry Ltd | Wholesale & retail | 2025 |
| Violasnow Ltd | Information & communication | 2026 |
| Virtual Private World Limited | Information & communication | 2023 |
| Virtue Hair Design Limited | Other services | 2012 |
| Vision Travel Limited | Transport & logistics | 1995 |
| Visionary Law Consultancy Limited | Professional & scientific | 2020 |
| Visionary Scalps Ltd | Arts & recreation | 2021 |
| Visione Interiors Ltd | Construction | 2012 |
| Vistara Assets Limited | Real estate | 2025 |
| Visualnet Limited | Professional & scientific | 2009 |
| Vital 4U Project Management Services Ltd | Professional & scientific | 2018 |
| Vital Racing Motorsports Ltd | Arts & recreation | 2025 |
| Vital Risk Management Limited | Professional & scientific | 2023 |
| Vital Vehicle Rental Ltd | Administrative & support | 2025 |
| Vitek Limited | Information & communication | 2020 |
| Vitel Group Holdings Ltd | Financial services | 2025 |
| Vitelecom Ltd | Information & communication | 2016 |
| Vivekdent Limited | Health & social care | 2018 |
| Vizitwa Ltd | Health & social care | 2019 |
| VMS Network Cabling Limited | Information & communication | 2004 |
| Vnikol Limited | Education | 2014 |