| Thomas J Brown Services Ltd | Construction | 2021 |
| Thomas Lydiate & Company Limited | Real estate | 2019 |
| Thompson Hair and Education Limited | Education | 2023 |
| Thompson IT Services Ltd | Administrative & support | 2017 |
| Thompson S Towers Limited | Financial services | 2026 |
| Thompson.Style Limited | Other services | 2015 |
| Thompsons Packaging Limited | Wholesale & retail | 2006 |
| Thor Electrical (NW) Limited | Construction | 2023 |
| Thornleigh Consultancy Limited | Administrative & support | 2013 |
| Thoroughbred British Racing Ltd | Arts & recreation | 2010 |
| Thorpe-Robinson Limited | Professional & scientific | 2011 |
| Thought 4 Food Catering Ltd | Hospitality | 2004 |
| Thoughtful Creative Limited | Professional & scientific | 2025 |
| Thousand Pace Investments Limited | Financial services | 2024 |
| Thow Holdings Limited | Financial services | 2023 |
| Three Pillars Fire and Security Ltd | Administrative & support | 2026 |
| Thriveway Living Limited | Construction | 2025 |
| Thriveway Projects Ltd | Real estate | 2026 |
| Thurston House Properties (Northern) Limited | Real estate | 2003 |
| TI Engineering Contractors Limited | Extraterritorial | 2013 |
| TI Engineering Services Limited | Extraterritorial | 2009 |
| TI Industrial Group Limited | Financial services | 2009 |
| TI Plant Limited | Extraterritorial | 2013 |
| TI Protective Coatings Limited | Extraterritorial | 2009 |
| TI Rail Limited | Extraterritorial | 2013 |
| TI Scaffolding Limited | Extraterritorial | 2009 |
| Tiarey News Ltd | Wholesale & retail | 2018 |
| Tidswell Electrical Ltd | Construction | 2019 |
| Tiger Bay Aquatics Limited | Construction | 2004 |
| Tiger Cuisine Ltd | Hospitality | 2022 |
| Tigerfish PR Limited | Professional & scientific | 2008 |
| Tigertek IT Limited | Other services | 2016 |
| Tigris Bioscience Limited | Professional & scientific | 2015 |
| Tile & Bath Emporium Ltd | Wholesale & retail | 2013 |
| Tile & Kitchen Outlet Limited | Households | 2014 |
| Timari Limited | Hospitality | 2012 |
| Timber Fence Company Ltd | Manufacturing | 2025 |
| Timboslice Ltd | Transport & logistics | 2026 |
| Tintt Ltd | Wholesale & retail | 2025 |
| Tinudara Health Limited | Health & social care | 2025 |
| Tiny Rockers Limited | Education | 2012 |
| Tiny Rockers Parties & Events Limited | Public administration | 2022 |
| TJ Clinical Services Ltd | Professional & scientific | 2024 |
| TJ13 Ltd | Information & communication | 2022 |
| TJB Group Limited | Administrative & support | 2018 |
| TJD Contracts Ltd | Manufacturing | 2017 |
| TJM Business Services Ltd | Professional & scientific | 2008 |
| TJM Plumbing & Bathrooms Ltd | Construction | 2021 |
| TKS Fusion Ltd | Hospitality | 2025 |
| TLF Earthworks Limited | Construction | 2022 |
| TLS Bars Ltd | Hospitality | 2017 |
| Tmachining Ltd | Manufacturing | 2016 |
| TMS Digital Ltd | Information & communication | 2025 |
| TMS Finance Limited | Wholesale & retail | 2015 |
| TMT and Bathrooms Ltd | Construction | 2026 |
| TNJ Brickwork Limited | Construction | 2006 |
| TNP Freedom Properties Ltd | Construction | 2025 |
| TNT Renovations Ltd | Construction | 2025 |
| Tobbuild Renovation Ltd | Construction | 2025 |
| Toip Limited | Hospitality | 2019 |
| TOM Gutteridge Osteopaths Limited | Health & social care | 2015 |
| Tomorrows Living Limited | Information & communication | 2016 |
| Tong Park Ltd | Hospitality | 2024 |
| Tony Fenton & Sons Wealth Management Limited | Financial services | 2015 |
| Tony Pickup Investments Ltd | Professional & scientific | 2020 |
| Tony Walker Financial Planning Services Limited | Financial services | 2019 |
| Tool Hire HQ Ltd | Administrative & support | 2024 |
| Top Deal Wholesale Ltd | Wholesale & retail | 2017 |
| Top Form Consulting Limited | Information & communication | 2014 |
| Top Gear (Chorley) Limited | Wholesale & retail | 2012 |
| Top Marks Group Ltd | Other services | 2020 |
| Top Nosh Hand Car Wash Ltd | Administrative & support | 2022 |
| Top OT Green Ltd | Hospitality | 2022 |
| Top Style Ceramics Ltd | Construction | 2019 |
| Topaz Gymnastics Ltd | Arts & recreation | 2025 |
| Topline Construction Ltd | Construction | 2020 |
| Torre Trans Limited | Transport & logistics | 2017 |
| Torvid Limited | Administrative & support | 2022 |
| Total Access Bathrooms Limited | Construction | 2016 |
| Total Building Cleaning Limited | Other services | 2019 |
| Total Carpet Cleaning Ltd | Construction | 2016 |
| Total Haulage (Northwest) Limited | Transport & logistics | 2016 |
| Total Rewire NW Ltd | Construction | 2019 |
| Total Surface Graphics Ltd | Manufacturing | 2026 |
| Totalphysio(Uk) Limited | Health & social care | 2024 |
| Touch UP Beauty Ltd | Other services | 2020 |
| Touchbusiness Limited | Professional & scientific | 2007 |
| Touchwood Transport Ltd | Transport & logistics | 2023 |
| Tough Trade Limited | Wholesale & retail | 2024 |
| Tower Gaming Solutions Limited | Information & communication | 2010 |
| Town House Estates (NW) Limited | Real estate | 2017 |
| Town House Properties NW Ltd | Real estate | 2025 |
| Town Lane Industrial Estate Limited | Construction | 2019 |
| Townbridge Homes Ltd. | Real estate | 2017 |
| Toyeb Limited | Professional & scientific | 2019 |
| Toys "R" US Properties (UK) Limited | Real estate | 2005 |
| TPV Foods Ltd | Hospitality | 2026 |
| Trackerteam Ltd | Administrative & support | 2017 |
| Tracks Limited | Wholesale & retail | 1996 |
| Trackuz Telematics Limited | Wholesale & retail | 2015 |