| Tower Apex Limited | Construction | 2018 |
| Toyoagbi Solutions Ltd | Wholesale & retail | 2022 |
| Toyob Properties Limited | Real estate | 2025 |
| TPD London Limited | Manufacturing | 2009 |
| Tplo Limited | Professional & scientific | 2018 |
| TQR Limited | Wholesale & retail | 2024 |
| TR-03 Services Ltd | Extraterritorial | 2016 |
| TR03 Management Services Ltd | Administrative & support | 2021 |
| Trace Care Solutions Ltd | Health & social care | 2022 |
| Tracey Law Ltd | Wholesale & retail | 2025 |
| Tracit Technology Ltd | Information & communication | 2023 |
| Traders DDR Ltd | Wholesale & retail | 2025 |
| Tradexel Ltd | Transport & logistics | 2016 |
| Trainair Products Limited | Manufacturing | 2002 |
| Training Centre Direct Limited | Construction | 2006 |
| Transform Security and General Services Ltd | Other services | 2021 |
| Transformation Property Ltd | Real estate | 2024 |
| Transpiration Limited | Transport & logistics | 1999 |
| Transport Erbau Ltd | Transport & logistics | 2015 |
| Transports London UK Ltd | Transport & logistics | 2023 |
| Tranzac Limited | Professional & scientific | 2021 |
| Treatis Healthcare Services Limited | Health & social care | 2022 |
| Trinity Values Limited | Construction | 2015 |
| Trinityx Care Services Ltd | Health & social care | 2017 |
| Triple a Estates & Properties Limited | Real estate | 2026 |
| Triple AJ Services Limited | Administrative & support | 2024 |
| Triple Jays Consulting Limited | Professional & scientific | 2020 |
| Tripple Alpha Ltd | Transport & logistics | 2025 |
| Tripple JS Services Limited | Construction | 2015 |
| Trismede Ltd | Information & communication | 2020 |
| Truckbusters LLP | | 2004 |
| Truckbusters UK Ltd | Other services | 1993 |
| True Christian Apostolic Church International | Other services | 2014 |
| Trust Medical Services Limited | Wholesale & retail | 2009 |
| TS Markt Ltd | Wholesale & retail | 2019 |
| TSF Motors Limited | Wholesale & retail | 2022 |
| TU Homes and Properties Limited | Real estate | 2025 |
| Tuff Properties Ltd | Real estate | 2022 |
| Tumisquare Limited | Health & social care | 2021 |
| Tumour Sticky Limited | Wholesale & retail | 2025 |
| Tunde Securities & Care Limited | Transport & logistics | 2018 |
| Turaab Limited | Real estate | 2025 |
| Tuska Properties Ltd | Households | 2024 |
| TV Construction and Electrical Services Ltd | Construction | 2025 |
| TW Works Ltd | Real estate | 2023 |
| TW Works Properties Ltd | Financial services | 2026 |
| Twigg Close 1960 Limited | Extraterritorial | 2014 |
| Twinkles Services Limited | Other services | 2019 |
| Twofoldmusicgroup Limited | Arts & recreation | 2021 |
| U Value Accountants Ltd | Professional & scientific | 2017 |
| U Value Facilities Limited | Administrative & support | 2015 |
| U Value Group Ltd | Professional & scientific | 2024 |
| U-Value Service Limited | Information & communication | 2013 |
| UAK Healthcare Limited | Health & social care | 2013 |
| Ubatraco Limited | Health & social care | 2015 |
| Uden's Commercial Vehicle Repairs Ltd | Wholesale & retail | 2019 |
| Uhambo the Journey Ltd | Education | 2023 |
| UK Double Glazing Repairs Ltd | Administrative & support | 2017 |
| UK Fastfood Suppliers Limited | Wholesale & retail | 2004 |
| UK Fine Food Suppliers Ltd | Extraterritorial | 2012 |
| UK Natural World Limited | Wholesale & retail | 2021 |
| Ukoette Enterprise Limited | Health & social care | 2019 |
| UKSB2 Ltd | Other services | 2025 |
| Ultimate House Health Limited | Health & social care | 2026 |
| Ultimate Staffing Ltd | Administrative & support | 2019 |
| Ultraworld Scanning Services Ltd | Health & social care | 2020 |
| Umunna Mbaise NA London Limited | Other services | 2024 |
| Unbearably Unique Limited | Manufacturing | 2021 |
| Unbeetable Limited | Construction | 2020 |
| Undeniable Beauty Limited | Other services | 2026 |
| UNI Advisory Ltd | Education | 2024 |
| Unisol Community Hub CIC | Wholesale & retail | 2025 |
| United Christian Secondary School Apapa Lagos, Old Students' UK Chapter | Other services | 2019 |
| United Kingdom for Jesus Christ | Extraterritorial | 2015 |
| United Tiling (UK) Limited | Construction | 2011 |
| United Voices Movement Ltd | Health & social care | 2026 |
| Upbeezcatering Ltd | Hospitality | 2025 |
| Upholstery by Nads Ltd | Other services | 2020 |
| Upmost Care Limited | Health & social care | 2019 |
| Upper View Properties Ltd | Real estate | 2015 |
| Uptown Couture Designs Ltd | Manufacturing | 2025 |
| Urbanedge Design & Build Ltd | Construction | 2026 |
| Usgds Limited | Information & communication | 2025 |
| Utopian Gardens Inc. Limited | Administrative & support | 2023 |
| V Dele Ltd | Professional & scientific | 2022 |
| V K Cash and Carry Ltd | Wholesale & retail | 2025 |
| V K Retailer Limited | Wholesale & retail | 2025 |
| V Tusha Ltd | Construction | 2024 |
| V&D Solution Limited | Manufacturing | 2020 |
| V&F Business Ltd | Construction | 2016 |
| V&S Consultant Limited | Professional & scientific | 2012 |
| V&V Tiling Ltd | Construction | 2026 |
| V. I Handyman Services Ltd | Construction | 2025 |
| V.I.B.E Tuition Service Ltd | Education | 2024 |
| V300MUK Limited | Transport & logistics | 2023 |
| Value Added Management Consulting Limited | Professional & scientific | 2015 |
| Value Home and Property Limited | Real estate | 2023 |
| Vamira Ltd | Manufacturing | 2025 |
| Vangaard Group Ltd | Financial services | 2024 |
| Vanpomaa Limited | Construction | 2014 |