| Tyrep Limited | Manufacturing | 1967 |
| TZ Makra Ltd. | Extraterritorial | 2016 |
| U Wilson Consulting Ltd | Professional & scientific | 2017 |
| Ubtrack Ltd | Transport & logistics | 2014 |
| UCC Properties Limited | Real estate | 2007 |
| Uccu Limited | Information & communication | 2022 |
| Ugly Monkey Limited | Transport & logistics | 2014 |
| UK Door Stripping Ltd | Other services | 2014 |
| UK Timber Holdings Limited | Financial services | 2023 |
| UK Timber Limited | Wholesale & retail | 2002 |
| UK Transport Services Ltd | Manufacturing | 2020 |
| UK Zaharia's Ltd | Construction | 2024 |
| Ukassembled Ltd | Other services | 2018 |
| Uksaleteam Ltd | Transport & logistics | 2015 |
| UKT Disposals Limited | Wholesale & retail | 2026 |
| Ultima Displays Holdings Limited | Professional & scientific | 2017 |
| Ultima Displays Limited | Manufacturing | 1999 |
| Ultimate Care & Support Services Ltd | Administrative & support | 2017 |
| Ultra Clean Ltd | Administrative & support | 2025 |
| Ultra Dent Solutions Limited | Professional & scientific | 2019 |
| Ultra Petroleum Limited | Manufacturing | 2013 |
| Umizha Limited | Health & social care | 2022 |
| Unicare Healthcare Limited | Health & social care | 2017 |
| Unicorn Automation (NDT) Spares Ltd | Professional & scientific | 2022 |
| Unified Cards Limited | Wholesale & retail | 2021 |
| Unified Gaming Ltd | Arts & recreation | 2024 |
| Unified Trades Limited | Transport & logistics | 2026 |
| Unify Support Services Ltd | Administrative & support | 2020 |
| Union Architects London Limited | Professional & scientific | 2024 |
| Unique Computing Solutions Ltd | Wholesale & retail | 2026 |
| Unique Fitted Rooms Ltd | Manufacturing | 2021 |
| Unique Interior Solutions Limited | Construction | 2007 |
| Unitate Audio Limited | Arts & recreation | 2016 |
| United Praise Ltd | Administrative & support | 2026 |
| Unitransport Ltd | Transport & logistics | 2017 |
| Universal Training Services (Midlands) Ltd | Education | 2014 |
| Unkiu. Ltd | Transport & logistics | 2014 |
| Untouchables Records Ltd | Wholesale & retail | 2024 |
| Uplifted Lives Private Ltd | Health & social care | 2019 |
| Upper Lyde Limited | Professional & scientific | 2006 |
| Upscale Digital Limited | Information & communication | 2022 |
| Urban Motion Fleet Ltd | Administrative & support | 2025 |
| Utme Ltd | Transport & logistics | 2024 |
| V&A Nestliving Ltd | Real estate | 2026 |
| V&A Transport Services Ltd | Wholesale & retail | 2021 |
| Vaarista (WF) Limited | Wholesale & retail | 2025 |
| Vaarista Limited | Hospitality | 2023 |
| Vagd - Group Ltd | Transport & logistics | 2022 |
| Valagro UK Limited | Wholesale & retail | 1999 |
| Valdi Haulage Limited | Transport & logistics | 2018 |
| Valenko Ltd | Information & communication | 2025 |
| Valentas 818 Ltd | Transport & logistics | 2016 |
| Valleydown Limited | Construction | 2017 |
| Vally Detailing Ltd | Wholesale & retail | 2018 |
| Valour Performance Technology Ltd | Arts & recreation | 2015 |
| Valten Ltd | Health & social care | 2020 |
| Van Hammond Services Limited | Administrative & support | 2024 |
| Vanlife Kampers Ltd | Manufacturing | 2022 |
| Vape Legends Ltd | Wholesale & retail | 2021 |
| VAS SPV Ltd | Real estate | 2026 |
| Vassi Transport Ltd | Transport & logistics | 2019 |
| Vasy&Crys Ltd | Wholesale & retail | 2025 |
| Vaudois Limited | Real estate | 2006 |
| VAZ Garage Ltd | Wholesale & retail | 2023 |
| VAZ Property Limited | Real estate | 2025 |
| Vazauto Ltd | Wholesale & retail | 2019 |
| VBL Ltd | Administrative & support | 2016 |
| VBS Services Ltd | Wholesale & retail | 2025 |
| VC Commercials Limited | Wholesale & retail | 2026 |
| VC Maintain Ltd | Administrative & support | 2025 |
| VDN Delivery Ltd | Transport & logistics | 2025 |
| Ve&V Ltd | Transport & logistics | 2018 |
| Veemat Limited | Health & social care | 2018 |
| Vehicleyes Installs Ltd | Administrative & support | 2025 |
| VEL UK Retail Limited | Wholesale & retail | 2026 |
| Vela Community Group Limited | Health & social care | 2026 |
| VEN Companies Limited | Professional & scientific | 2017 |
| Venday Staffing Solutions Ltd | Information & communication | 2024 |
| Ventilation Renewal Service Ltd | Administrative & support | 2019 |
| Venture Business Solutions Limited | Administrative & support | 2014 |
| Venturi Marketing Ltd | Administrative & support | 2023 |
| Verahire Limited | Administrative & support | 2025 |
| Verde Terrazzo Flooring Ltd | Construction | 2023 |
| Verified Software Limited | Information & communication | 2024 |
| Verilumia Ltd | Information & communication | 2025 |
| Veritas Online Ltd | Wholesale & retail | 2025 |
| Vermilion Realty Limited | Real estate | 2021 |
| Versatilis Ltd | Agriculture & fishing | 2025 |
| Vertex Promotions Ltd | Professional & scientific | 2026 |
| Vexis Holdings Ltd | Real estate | 2025 |
| Vexra Clean Ltd | Administrative & support | 2025 |
| VF Transport Ltd | Transport & logistics | 2025 |
| Vibra-Technics Automotive Limited | Manufacturing | 1994 |
| Vicam Ltd | Health & social care | 2020 |
| Vickers Engineering Services Ltd | Professional & scientific | 2021 |
| Vico&Co Ltd | Manufacturing | 2019 |
| Vicplumb Ltd | Construction | 2026 |
| Victa Limited | Manufacturing | 1961 |
| Victor&Adrian Ltd | Water & waste | 2025 |
| Victorious Healthcare Limited | Health & social care | 2022 |