| Trans Global International Freight Management Ltd | Transport & logistics | 1926 |
| Trans Global Limited | Professional & scientific | 1963 |
| Trans Global Logistics Limited | Transport & logistics | 1932 |
| Trans Global Shipping Limited | Transport & logistics | 1966 |
| Trans Stef Ltd | Transport & logistics | 2022 |
| Transtar Freight Forwarders Limited | Transport & logistics | 2002 |
| Transtar International Freight Forwarders Limited | Transport & logistics | 1981 |
| Trimower Ltd | Wholesale & retail | 2026 |
| Triple a Digital Limited | Wholesale & retail | 2016 |
| Triple O Business Venture Limited | Wholesale & retail | 2023 |
| Truth Mentorship Society UK Limited | Other services | 2026 |
| Ttwsay Ltd | Wholesale & retail | 2022 |
| Tuitionary Ltd | Education | 2026 |
| Twisted Standards LP | | 2020 |
| UK Digital Leads Ltd | Administrative & support | 2019 |
| Umag Limited | Health & social care | 2022 |
| Underground Tours Ltd | Administrative & support | 2024 |
| Untitled Labs Ltd | Information & communication | 2025 |
| URI Trans Ltd | Transport & logistics | 2015 |
| Uropa Bluewater Ltd | Wholesale & retail | 2024 |
| UTA Precision Engineering Limited | Manufacturing | 2017 |
| V Trans Ltd | Transport & logistics | 2019 |
| Vahq Limited | Construction | 2025 |
| Valex Services Ltd | Construction | 2020 |
| Vantage Point RTM Company Limited | Households | 2025 |
| Veres Familia Ltd | Construction | 2025 |
| Versatek Limited | Administrative & support | 2015 |
| Victorious Ladder Ltd | Financial services | 2026 |
| Viji Local Ltd | Wholesale & retail | 2026 |
| Vikasanand Limited | Other services | 2004 |
| Villa Brickwork Ltd | Construction | 2023 |
| Vionet Limited | Professional & scientific | 2013 |
| VIP Fashion Boutique Limited | Wholesale & retail | 2012 |
| Vivanta SL Ltd | Information & communication | 2024 |
| VM Auto Ltd | Wholesale & retail | 2025 |
| VM Mortgages Ltd | Financial services | 2024 |
| Voltiva Group Ltd | Construction | 2025 |
| VRS Private Ltd | Real estate | 2022 |
| VTM Service 1985 Ltd | Administrative & support | 2026 |
| Vuaa Limited | Water & waste | 2015 |
| Vulcan Technologies Limited | Information & communication | 2025 |
| W Sokoli Limited | Hospitality | 2021 |
| Waalast Limited | Information & communication | 2011 |
| Wabross Limited | Professional & scientific | 2012 |
| Wakely & Wheeler Ltd | Manufacturing | 2004 |
| WAN Peace Global Rescue Network Ltd | Agriculture & fishing | 2025 |
| Warepoint Logistics Ltd | Wholesale & retail | 2019 |
| Warner (Warehousing) Limited | Transport & logistics | 1975 |
| Watermans Catering Ltd | Hospitality | 2024 |
| Waterstone Advisors Limited | Professional & scientific | 2023 |
| Waterstone Marketing Ltd | Professional & scientific | 2018 |
| Welmax Ltd | Wholesale & retail | 2019 |
| Wfpa Ltd | Professional & scientific | 2016 |
| White Sierra Limited | Professional & scientific | 2024 |
| WHITESTONE68 Limited | Hospitality | 2020 |
| Williamson Magor Industries Limited | Transport & logistics | 1924 |
| Wilvryb Ltd | Health & social care | 2022 |
| Winchester Developments Ltd | Construction | 2025 |
| Wired-Remote Ltd | Wholesale & retail | 2024 |
| Wiztech Consult Ltd | Information & communication | 2023 |
| Women Warriors Ltd | Arts & recreation | 2022 |
| Xtraflow Limited | Manufacturing | 2013 |
| Yash Services Limited | Construction | 2019 |
| Yensu Ltd | Professional & scientific | 2018 |
| Yodell Services (UK) Limited | Information & communication | 2015 |
| Yomik Limited | Real estate | 2021 |
| Yorkmoor Property Management (Greenhithe) Limited | Administrative & support | 2010 |
| Your Baby Matters Ltd | Health & social care | 2025 |
| Your Bark Life Limited | Wholesale & retail | 2024 |
| Yugihurrell Collectibles Ltd | Wholesale & retail | 2026 |
| Zadok Global Ltd | Administrative & support | 2025 |
| ZAL3 Ltd | Other services | 2015 |
| Zamile Limited | Health & social care | 2019 |
| Zancon Ltd | Wholesale & retail | 2026 |
| ZEN QI Ltd | Education | 2019 |
| Znoz Dwellings Ltd | Real estate | 2026 |
| ZNZ Dwellings Ltd | Real estate | 2025 |
| Zoinomics Ltd | Health & social care | 2010 |
| Zygosec Ltd | Information & communication | 2020 |