| Tramond Properties Limited | Real estate | 2022 |
| Transformational Innovation, Employability & Research (Tier) CIC | Professional & scientific | 2026 |
| Transformwise Limited | Real estate | 2015 |
| Translidy Ltd | Wholesale & retail | 2026 |
| Transporter Executive Ltd | Transport & logistics | 2016 |
| Transverse Vehicles Limited | Wholesale & retail | 2020 |
| Travel Luggage & Cabin Bags Ltd | Wholesale & retail | 2014 |
| Travel Luxe Ltd | Professional & scientific | 2018 |
| Traveleye.Com Ltd | Information & communication | 2007 |
| Treacy Building Services Limited | Construction | 1997 |
| Treadmoor Limited | Hospitality | 2020 |
| Tree Finch Property Ltd | Real estate | 2021 |
| Tremorvah Stays Ltd | Real estate | 2026 |
| Trent Health Pharmacy Limited | Wholesale & retail | 2004 |
| Trent Learning Centre Ltd | Education | 2025 |
| TRF Consulting Ltd | Professional & scientific | 2025 |
| TRF Solutions Limited | Professional & scientific | 2010 |
| TRG Developments Ltd | Construction | 2024 |
| TRI Trading Group Ltd | Financial services | 2026 |
| TRIANGUL-8 Ltd | Professional & scientific | 2026 |
| Tribangi Ltd | Financial services | 2022 |
| Trident Infotech Limited | Information & communication | 2025 |
| Tridhan Ltd | Real estate | 2021 |
| Trigpoint Solutions Ltd | Information & communication | 2011 |
| Trilogy Hair Limited | Other services | 2008 |
| Trinity Contractors Limited | Manufacturing | 1998 |
| Trinity House (1-5) RTM Company Ltd | Households | 2020 |
| Trinity IP Solutions Limited | Professional & scientific | 2015 |
| Trinity Management Consulting Limited | Professional & scientific | 2016 |
| Trinity Place Limited | Real estate | 1988 |
| Trinity Play Centre (Sutton Coldfield) Limited | Education | 2010 |
| Trinity Point Developments Ltd | Construction | 2018 |
| Trinity Point Group Ltd | Real estate | 2018 |
| Trinity Respite Services Limited | Health & social care | 2021 |
| Trinity Specialist College Limited | Education | 2011 |
| Trinity Spires Studios Limited | Information & communication | 2026 |
| Trinity Towers Limited | Administrative & support | 2017 |
| Trinity Trades Team Ltd | Construction | 2025 |
| Triplaces Developments Limited | Construction | 2022 |
| Trojan Build Midlands Ltd | Administrative & support | 2018 |
| Tropical Direction UK Ltd | Wholesale & retail | 2023 |
| Tropicana Health & Fitness Limited | Wholesale & retail | 1997 |
| Tropick Investment Group Ltd | Wholesale & retail | 2026 |
| True Beauty LO Limited | Other services | 2024 |
| True Pizzas (Manor Road) Limited | Hospitality | 2021 |
| True Pizzas (Regents Place) Limited | Hospitality | 2020 |
| True Pizzas Limited | Hospitality | 2025 |
| Truelink Services Limited | Real estate | 1999 |
| Trusted Commerce Ltd | Wholesale & retail | 2022 |
| Trusted Resource Solutions Limited | Professional & scientific | 2011 |
| Trustfit Interiors Ltd | Construction | 2026 |
| Truststone Property Investments Ltd | Real estate | 2026 |
| Truth Space Ltd | Manufacturing | 2020 |
| TS Cloud Consulting Ltd | Information & communication | 2023 |
| TS Whala Ltd | Health & social care | 2015 |
| Ts&Js Ltd | Real estate | 2024 |
| Tsangs Cuisine Limited | Hospitality | 2023 |
| TSB Aesthetics Limited | Health & social care | 2020 |
| Tsgh Limited | Hospitality | 2020 |
| TSH Warwickshire Limited | Hospitality | 2025 |
| TSM (Midlands) Ltd | Construction | 2015 |
| TSM Contracting SW Limited | Administrative & support | 2022 |
| Tsrts Ltd | Information & communication | 2017 |
| Tstp Rentals Limited | Real estate | 2026 |
| Tsur Consultancy Services Ltd | Professional & scientific | 2023 |
| Tsur Ltd | Information & communication | 2018 |
| TT Ales Limited | Hospitality | 2024 |
| TTP Models Ltd | Wholesale & retail | 2020 |
| TTR-78 Ltd | Health & social care | 2025 |
| Tudor Essentials Co. Ltd | Wholesale & retail | 2025 |
| Tudor Interiors Ltd | Wholesale & retail | 2024 |
| Tudor Kitchen Factory Limited | Wholesale & retail | 1997 |
| Tudor Partnership Limited | Real estate | 2019 |
| Tudor Rose Cleaning Services Limited | Administrative & support | 2020 |
| Tup-A-Tee Events Ltd | Administrative & support | 2024 |
| Turkish Barbers (Birmingham) Limited | Other services | 2025 |
| Turkish Barbers (Studley) Limited | Other services | 2019 |
| Turkish Barbers Club Ltd | Other services | 2018 |
| Turkish Barbers Jewellery Quarter Limited | Other services | 2022 |
| Turkish Barbers Perry Common Ltd | Other services | 2021 |
| Turkish Dining Limited | Hospitality | 2022 |
| Turner & Wilkes Ltd | Households | 2023 |
| Turner Cahill Brickwork Ltd | Construction | 2013 |
| Turner Forklift Trucks Limited | Manufacturing | 2019 |
| Turtletek Ltd | Wholesale & retail | 2021 |
| Tuskhome Limited | Health & social care | 1985 |
| Tutoiso Ltd | Professional & scientific | 2021 |
| TVO Ltd | Information & communication | 2019 |
| TW & D Consulting Ltd | Wholesale & retail | 2018 |
| Twbsa Ltd | Real estate | 2023 |
| Tweak IT Aesthetics Ltd | Other services | 2021 |
| Twig Networks Ltd | Information & communication | 2019 |
| Twigg Floral Design Limited | Wholesale & retail | 2020 |
| Twin Renovation Ltd | Construction | 2017 |
| Twnty Four Ventures Limited | Professional & scientific | 2023 |
| Two by Two Day Nursery Ltd | Education | 2016 |
| Two Daughters Design and Project Management Ltd | Construction | 2017 |
| Two Rivers Consulting Limited | Professional & scientific | 2018 |
| Two Thirds Design Limited | Administrative & support | 2006 |
| Typhoon Pictures Limited | Information & communication | 2019 |