| Tshanice Ltd | Health & social care | 2019 |
| Tsqcoaching Limited | Professional & scientific | 2021 |
| TT Doctors Limited | Information & communication | 2018 |
| Tubb Holdings Ltd | Construction | 2025 |
| Tudor Design & Build Limited | Construction | 2011 |
| Tumz Transit Ltd | Transport & logistics | 2023 |
| Turbett & Crew Limited | Administrative & support | 2010 |
| Turczyn Consultancy Limited | Information & communication | 2003 |
| Turiim Limited | Construction | 2021 |
| Turner Dental Care Ltd | Health & social care | 2019 |
| Turnkey Engineering Solutions Ltd | Professional & scientific | 2020 |
| Turrenson Ltd | Administrative & support | 2022 |
| TVS Transport Limited | Wholesale & retail | 2023 |
| TW Film & Media Ltd | Information & communication | 2023 |
| Twisted Dice Ltd | Information & communication | 2021 |
| Two Wheels Logistics Ltd | Administrative & support | 2018 |
| Two-Eight Consulting Ltd | Professional & scientific | 2022 |
| Tylers Property Partnership Limited | Real estate | 2011 |
| Tyre ME OUT Limited | Wholesale & retail | 2005 |
| Tyson Apartments Management Limited | Households | 2015 |
| U Transport Services UK Ltd | Transport & logistics | 2015 |
| U Turn (UK) Limited | Wholesale & retail | 2025 |
| Ucars Tech Limited | Transport & logistics | 2018 |
| Uche Care Limited | Health & social care | 2018 |
| UGO Healthcare Ltd | Health & social care | 2025 |
| UK Candy Delights Ltd | Manufacturing | 2025 |
| UK Direct Parcels Ltd | Transport & logistics | 2019 |
| UK Doner Box Limited | Hospitality | 2026 |
| UK Marquee Hire Limited | Administrative & support | 2016 |
| UK S2000 Owners Club | Other services | 2004 |
| UK Toptrade Intl Ltd | Energy | 2016 |
| UK Traders Inc Limited | Other services | 2003 |
| UK Vertex Innovative Consulting Ltd | Information & communication | 2019 |
| UKL EOT Limited | Extraterritorial | 2024 |
| Ulternate Gray Comms Ltd | Information & communication | 2022 |
| Ultravision International Limited | Manufacturing | 1979 |
| Ultrawood Interiors LLP | | 2010 |
| Umbrella Logistics Limited | Transport & logistics | 2026 |
| Under the Cuff Ltd | Wholesale & retail | 2020 |
| Unforgettable Impact Ltd | Professional & scientific | 2013 |
| Unionuk Ltd | Construction | 2016 |
| Unionx Limited | Financial services | 2019 |
| Uniquework Limited | Financial services | 1990 |
| Unit.E Consulting Limited | Information & communication | 2012 |
| United Intelligence Ltd | Information & communication | 2025 |
| Unity Decor Group Ltd | Construction | 2025 |
| Universal Travel Ventures Limited | Administrative & support | 2025 |
| Universe Bedford Holiday House Limited | Real estate | 2025 |
| Universo Capoeira Ltd | Arts & recreation | 2018 |
| Unleashed and Unlimited Ltd | Professional & scientific | 2018 |
| Unlocking Justice Ltd | Professional & scientific | 2023 |
| Unofficial Works Limited | Professional & scientific | 2026 |
| Unsworth Commercial Tyres & Repairs Ltd | Wholesale & retail | 2026 |
| Unusual Systems Ltd | Information & communication | 2011 |
| Upton Wilson Holdings Ltd | Professional & scientific | 2016 |
| Upton Wilson Ltd | Professional & scientific | 2007 |
| Urban Eleven Ltd | Real estate | 2024 |
| Uriah Heep Music Limited | Information & communication | 2009 |
| Uriah Heep Productions Limited | Other services | 1990 |
| Userlikeyou Limited | Information & communication | 2023 |
| Usmani King Ltd | Professional & scientific | 2010 |
| Uthaya Property Limited | Real estate | 2023 |
| UTW Care Ltd | Health & social care | 2025 |
| V H Simpson Limited | Professional & scientific | 2024 |
| V-16 Ltd | Information & communication | 2020 |
| V-One Design Solutions Limited | Professional & scientific | 1999 |
| V2O Sports Limited | Wholesale & retail | 2026 |
| VAB Solutions Ltd | Construction | 2021 |
| Vaillant Equine Ltd | Agriculture & fishing | 2020 |
| VAL Freight Ltd | Transport & logistics | 2016 |
| Valeforce Developments Limited | Construction | 2004 |
| Valentino's (Barbers) Ltd | Other services | 2018 |
| Valhalla Films Ltd | Professional & scientific | 2025 |
| Valur Consulting Ltd | Professional & scientific | 2021 |
| Vandyke Gardens Residents Company Limited | Real estate | 1976 |
| Vandyke Upper School | Education | 2011 |
| Vanessa MAY Ltd | Professional & scientific | 2022 |
| Vangis Presentation Solutions Limited | Administrative & support | 2012 |
| Vantage Tech Advisors Ltd | Information & communication | 2022 |
| Vape Liquids Ltd | Extraterritorial | 2016 |
| Vape Smarter Ltd | Extraterritorial | 2020 |
| Vape Town Ltd | Administrative & support | 2017 |
| Varsity Town Planning Limited | Professional & scientific | 2021 |
| VCB Removals and Clearance Ltd | Transport & logistics | 2025 |
| Vechit Limited | Wholesale & retail | 2023 |
| Vehicall Transport Ltd | Transport & logistics | 2022 |
| Velevitka Ltd | Information & communication | 2020 |
| Velvette Aesthetics Ltd | Other services | 2025 |
| Vemar Limited | Real estate | 1996 |
| Vennscapes Limited | Construction | 2008 |
| Vent Logistics Limited | Construction | 2005 |
| Ventwise UK Ltd | Energy | 2025 |
| Venue View Ltd | Professional & scientific | 2016 |
| Venuex Limited | Professional & scientific | 2021 |
| Venus Property Solutions Limited | Construction | 2011 |
| Verdecom Consulting Limited | Professional & scientific | 2015 |
| Veritas Productions Ltd | Information & communication | 2021 |
| Verla Management Company Limited | Households | 2022 |
| Vernet-Behringer UK Limited | Wholesale & retail | 2009 |
| Verschueren Limited | Financial services | 2025 |