| Tiled: Ltd | Construction | 2014 |
| Timber Shield Solutions Limited | Construction | 2024 |
| Time for YOU (Worcester) Limited | Other services | 2010 |
| Time for YOU Birmingham Limited | Other services | 2014 |
| Time Therapy Ltd | Administrative & support | 2021 |
| Timelessglobal Ltd | Wholesale & retail | 2022 |
| Timely Wealth Management Ltd | Financial services | 2023 |
| Timms and Parker Homes Ltd | Real estate | 2019 |
| Timothy Floyd Limited | Professional & scientific | 2013 |
| Timx Ltd | Wholesale & retail | 2025 |
| Tina Brookes Accountancy & Taxation Services Limited | Professional & scientific | 2011 |
| Tinkable Holdings Ltd | Other services | 2019 |
| Tint FX Midlands Limited | Wholesale & retail | 2002 |
| Tintern House Ltd | Hospitality | 2021 |
| Tipeasy Limited | Agriculture & fishing | 1997 |
| Titanium Accountants DY Limited | Professional & scientific | 2017 |
| Titterstone Farm Ltd | Wholesale & retail | 2023 |
| Tivey Business Consulting Limited | Administrative & support | 2023 |
| TJ Concrete Guttering Ltd | Construction | 2025 |
| TJC Management Limited | Financial services | 2016 |
| TJL Residentials Ltd | Real estate | 2022 |
| TJN Training & Development Ltd | Public administration | 2020 |
| TJO Roofing and Building Limited | Construction | 2026 |
| TK Sports Solutions Ltd | Education | 2025 |
| TLC Group Services Limited | Hospitality | 2025 |
| TLG Solutions Ltd | Administrative & support | 2015 |
| Tofiq Investments Ltd | Real estate | 2025 |
| Tokes Properties Ltd | Real estate | 2021 |
| Tolley Badges Limited | Wholesale & retail | 1964 |
| Tolson Family Law Limited | Professional & scientific | 2012 |
| TOM Syed Hair Ltd | Other services | 2019 |
| Tomdan Limited | Real estate | 2012 |
| Tomorrows Marketing Limited | Administrative & support | 2008 |
| Toni Van Transport Ltd | Transport & logistics | 2025 |
| Tonic Aesthetics Ltd | Health & social care | 2019 |
| Tonic Care Ltd | Health & social care | 2021 |
| Tool Giraffe Limited | Wholesale & retail | 2024 |
| Toothpulp Limited | Health & social care | 2024 |
| Top Banana Communication Limited | Administrative & support | 1999 |
| Top Boxing Ltd | Administrative & support | 2016 |
| Top Class Gallery Limited | Wholesale & retail | 1992 |
| Top Dog Gaming Cafe Ltd | Hospitality | 2024 |
| Top HAT (Oldswinford) Limited | Hospitality | 2026 |
| Top Tyre Services Ltd | Wholesale & retail | 2026 |
| Top Vapes One Limited | Wholesale & retail | 2026 |
| Topmarks Plumbers UK Ltd | Construction | 2017 |
| Toppcutz Hair Design Limited | Other services | 1996 |
| Topshelfuk Ltd | Manufacturing | 2024 |
| Totalfix Appliances Limited | Other services | 2026 |
| Tour Tech (UK) Limited | Administrative & support | 1999 |
| Tournament Fields (Warwick) Management Company Limited | Real estate | 2006 |
| Townsend Close Residents Freehold Limited | Real estate | 2014 |
| Toyes Farm & Mill Cottage Aesthetics Ltd | Administrative & support | 2019 |
| TP IT & Web Services Limited | Information & communication | 2014 |
| TP Motivations Ltd | Other services | 2022 |
| Tpav&Company Ltd | Health & social care | 2022 |
| TPG Flat Roofing Ltd | Construction | 2024 |
| TR Consultancy Solutions Ltd | Professional & scientific | 2024 |
| Trade Check Limited | Information & communication | 2025 |
| Trade Gift Solutions Limited | Wholesale & retail | 2004 |
| Tradeified Limited | Construction | 2026 |
| Tradeonlykitchens.Com Limited | Wholesale & retail | 2014 |
| Tradetrux Ltd | Wholesale & retail | 2014 |
| Trading Depot Limited | Wholesale & retail | 2025 |
| Trafalgar International Property Corporation Limited | Financial services | 2009 |
| Traffic Light Industries Limited | Professional & scientific | 2004 |
| Train Time UK Holdings Ltd | Other services | 2023 |
| Trampoline Fitness Limited | Education | 2026 |
| Tranquillity Holidays Limited | Administrative & support | 2020 |
| Transmission Pro Ltd | Wholesale & retail | 2025 |
| Transport Rail & Infrastructure Academy Ltd | Professional & scientific | 2025 |
| Treadstone Enterprises Limited | Professional & scientific | 2021 |
| Trehans Hagley Ltd | Real estate | 2024 |
| Trend Tile & Bathroom Specialists Ltd | Wholesale & retail | 2018 |
| Triangle Construction (Birmingham) Ltd | Construction | 2017 |
| Triark Properties Ltd | Real estate | 2022 |
| Trikona House Ltd | Real estate | 2024 |
| Triluna Homes Ltd | Real estate | 2025 |
| Trinity Personnel Holdings Ltd | Financial services | 2021 |
| Trinity Personnel Limited | Administrative & support | 1994 |
| Tristan's Online Retail Ltd | Wholesale & retail | 2023 |
| Trivium Holdings Limited | Financial services | 2024 |
| Trla and Company Ltd | Hospitality | 2017 |
| Trontous Holdings Limited | Professional & scientific | 2001 |
| Troodle-Tots Ltd | Health & social care | 2021 |
| Trophy Distributors Holdings Limited | Financial services | 2025 |
| Truckers Direct Limited | Extraterritorial | 1983 |
| True Solutions Consulting Ltd | Professional & scientific | 2019 |
| Truesight Consultancy Ltd | Administrative & support | 2022 |
| Trypscore U.K. Ltd | Professional & scientific | 2022 |
| TSK Convenience Store Ltd | Wholesale & retail | 2023 |
| Tsyed Limited | Other services | 2021 |
| Ttko Ltd | Information & communication | 2016 |
| TTO Construct Limited | Construction | 2026 |
| Ttuf Powder Coating Ltd | Manufacturing | 2024 |
| Turkish Diamond Barbers Club Ltd | Other services | 2025 |
| Turkish Kebab Town Limited | Hospitality | 2025 |
| Turwel Boat Services Ltd | Manufacturing | 2021 |
| TV Camera Crew Limited | Information & communication | 2009 |
| TWC Education Limited | Education | 2019 |