| Twin Fountain Limited | Health & social care | 2014 |
| Txtmedia Limited | Information & communication | 2003 |
| Tycheadle Ltd | Hospitality | 2025 |
| Tydi Xpert Ltd | Administrative & support | 2024 |
| Tzortzis Limited | Professional & scientific | 2013 |
| U.B.S. Manchester Maintenance Ltd | Construction | 2021 |
| U.K. IT Depot Ltd | Wholesale & retail | 2019 |
| Uavengers Ltd | Other services | 2024 |
| UB Productions Ltd | Information & communication | 2020 |
| Ubahomarpharm Limited | Health & social care | 2021 |
| UBC Eagle Construction Limited | Construction | 2022 |
| Ugur Consultancy Ltd | Hospitality | 2019 |
| UHA Pharma Ltd | Real estate | 2023 |
| UJ Braces Ltd | Health & social care | 2024 |
| UK Building Limited | Construction | 2021 |
| UK Debt Solutions Limited | Financial services | 2019 |
| UK Document Scanning Ltd | Administrative & support | 2024 |
| UK GAS & Plumb Care Limited | Construction | 2022 |
| UK Lions Hockey Limited | Arts & recreation | 2015 |
| UK Luminaire Limited | Information & communication | 2026 |
| UK Medico Legal Limited | Administrative & support | 2010 |
| UK Renewable Energy Ltd | Wholesale & retail | 2023 |
| UK Sunshine Products Limited | Wholesale & retail | 2016 |
| UK Trade MCR Ltd | Wholesale & retail | 2025 |
| UK Wills and Estate Planning Ltd | Financial services | 2014 |
| UKH Maintenance Ltd | Construction | 2016 |
| Ukhk Staffing Solution Ltd | Administrative & support | 2024 |
| Umar Brothers Ltd | Wholesale & retail | 2020 |
| Umarx Ltd | Wholesale & retail | 2024 |
| Umir Consultancy Ltd | Professional & scientific | 2024 |
| Unar Ltd | Information & communication | 2021 |
| Unbrandedhomes Ltd | Real estate | 2025 |
| Underwood Estates Limited | Construction | 2017 |
| Unfiltered Media Limited | Manufacturing | 2022 |
| Unibond Limited | Extraterritorial | 1998 |
| Unicorn Plus Limited | Wholesale & retail | 2015 |
| Unicorn Property (UK) Ltd | Real estate | 2009 |
| Unique Neuro Wellness Ltd | Health & social care | 2024 |
| Unique Pointing Residential Limited | Construction | 2024 |
| Unique Pointing Restoration Ltd | Construction | 2024 |
| Unique Roofing Services Ltd | Construction | 2022 |
| United Investment Company Limited | Real estate | 1987 |
| Universal Container Services (Holdings) Ltd | Financial services | 2016 |
| Unofficiallyofficial Limited | Wholesale & retail | 2024 |
| UNR Properties Ltd | Real estate | 2025 |
| Unreal Lawns Ltd | Administrative & support | 2009 |
| Untitled Northern Ltd | Wholesale & retail | 2024 |
| UPL Properties Limited | Real estate | 2022 |
| Uppal Limited | Extraterritorial | 2022 |
| Upsadaisy Ltd | Education | 2016 |
| Uptive Marketing Ltd | Professional & scientific | 2023 |
| Uptive Property Ltd | Real estate | 2023 |
| Uptown Girl Touring Limited | Arts & recreation | 2024 |
| Upvc Fitters Limited | Other services | 2017 |
| UR Media Ltd | Information & communication | 2007 |
| Urban Acquisitions Ltd | Real estate | 2021 |
| Urban Auto Repairs Limited | Wholesale & retail | 2025 |
| Urban Bella Clothing Ltd | Wholesale & retail | 2026 |
| Urban Revive Properties Ltd | Real estate | 2021 |
| Urbtime Limited | Professional & scientific | 2012 |
| Urdeals Ltd | Wholesale & retail | 2023 |
| Urmston Lounge Ltd | Hospitality | 2021 |
| Urmston Therapy Centre Limited | Real estate | 2026 |
| US Medical Ltd | Health & social care | 2021 |
| Utilityseo Ltd | Professional & scientific | 2026 |
| Utopia Installations Limited | Construction | 2015 |
| V Management Group Limited | Construction | 2015 |
| Vaal Enterprises Limited | Administrative & support | 2006 |
| Vaibhav Lakshmi Limited | Financial services | 2025 |
| Valan Consulting Services Limited | Professional & scientific | 2022 |
| Valecrest Group Limited | Households | 2026 |
| Valunite Ltd | Professional & scientific | 2025 |
| Van Safe Parking Ltd | Administrative & support | 2024 |
| Vanilla UK Clinic Ltd | Other services | 2023 |
| Vapes&Mods Limited | Wholesale & retail | 2019 |
| Varel Ltd | Manufacturing | 2025 |
| Variety Foods Ltd | Wholesale & retail | 2025 |
| Vatax UQ Ltd | Professional & scientific | 2024 |
| Vavoom Asset Finance Limited | Financial services | 2021 |
| Vavoom Finance Group Limited | Financial services | 2021 |
| Vavoom Vehicle Management Limited | Financial services | 2021 |
| VD Wholesale Food Supplies and Consulting Ltd | Wholesale & retail | 2021 |
| Vedaa Bar and Restaurant Limited | Hospitality | 2025 |
| Vegilite Ltd | Hospitality | 2026 |
| Veldon Limited | Wholesale & retail | 1979 |
| Velo Systems Limited | Administrative & support | 1999 |
| Velora Care Solutions MCR Limited | Health & social care | 2025 |
| Velune Ltd | Wholesale & retail | 2026 |
| Venderaz Limited | Wholesale & retail | 2026 |
| Veni Vidi Amavi Trading Ltd | Wholesale & retail | 2018 |
| Venn Engineering Limited | Information & communication | 2026 |
| Venom Construction Ltd | Construction | 2025 |
| Venture Design and Sales Limited | Manufacturing | 2023 |
| Venturesys Limited | Information & communication | 2024 |
| Verdun Property Ltd | Real estate | 2020 |
| Verena Fokaih Ltd | Wholesale & retail | 2023 |
| Versa Holdings Limited | Financial services | 2024 |
| Versa Homes 1 Limited | Real estate | 2026 |
| Versa Homes 2 Limited | Real estate | 2026 |
| Versa Homes Limited | Real estate | 2024 |