| Tanglewood Commercial Developments Limited | Real estate | 1988 |
| Tanglewood Guitar Company Limited | Wholesale & retail | 1998 |
| Tango Networks UK Ltd. | Information & communication | 2009 |
| Tango Sierra Solutions Ltd | Professional & scientific | 2023 |
| Tangold Limited | Administrative & support | 2006 |
| Tani and ZUB Ltd | Wholesale & retail | 2025 |
| Tanify Limited | Other services | 2023 |
| Tanique Leeds Ltd | Other services | 2022 |
| Tanisha Consulting Limited | Information & communication | 2010 |
| Tanisha T Ltd | Professional & scientific | 2024 |
| Tanisshk Realty Ltd | Real estate | 2025 |
| Tank Cleaning Solutions Ltd | Water & waste | 2025 |
| Tankard Finerty Properties, LLP | | 2013 |
| Tankman Ltd | Manufacturing | 2025 |
| Tanners Arms Ltd | Hospitality | 2018 |
| Tanning Enterprises Ltd | Other services | 2023 |
| Tanso Prop Limited | Real estate | 2025 |
| Tanso Trading Limited | Hospitality | 2025 |
| Tantechnique Limited | | 1989 |
| Tanveer Prime Holdings Ltd | Construction | 2025 |
| Tanvela Bakery Prodcuts Ltd | Wholesale & retail | 2024 |
| Tanvitek Ltd | Administrative & support | 2026 |
| Tanweer & Co Consultancy Limited | Professional & scientific | 2017 |
| TAO Care Ltd | Health & social care | 2019 |
| TAP Digital Marketing Ltd | Professional & scientific | 2020 |
| TAP Holdco Limited | Information & communication | 2022 |
| Tapes Surveying Services Limited | Professional & scientific | 2020 |
| Tapp+ Ltd | Information & communication | 2023 |
| Tapper Properties Limited | Real estate | 2015 |
| Tapper-Rudd Holdings Limited | Real estate | 2020 |
| Tappit Tech Global Ltd | Information & communication | 2025 |
| Tapton Lock Hill Management Limited | Households | 2004 |
| Taqval Advisory Ltd | Professional & scientific | 2023 |
| Taqwa Food Distribution Ltd | Wholesale & retail | 2021 |
| Tara Ryan Consulting Limited | Professional & scientific | 2023 |
| Taraa Convenience Ltd | Wholesale & retail | 2024 |
| Tarbetts Limited | Wholesale & retail | 2016 |
| Tarbetts North Yorkshire Limited | Wholesale & retail | 2023 |
| Tardis Removals Limited | Transport & logistics | 2003 |
| Tareem Ltd | Hospitality | 2021 |
| Tareem Restaurant Ltd | Hospitality | 2025 |
| Tareen Investments Limited | Real estate | 2016 |
| Tareen&Tareen Ltd | Professional & scientific | 2010 |
| Tarendz Clothing & Footwear Ltd | Wholesale & retail | 2021 |
| Target Green Ltd | Other services | 2023 |
| Target Pallet Express Limited | Transport & logistics | 2022 |
| Target Print (Leeds) Limited | Manufacturing | 2001 |
| Target Properties (Yorkshire) Limited | Real estate | 1998 |
| Tarigo Ltd | Education | 2004 |
| Tariq Chaudhary & Co Ltd | Professional & scientific | 2019 |
| Tarleton Communications Limited | Professional & scientific | 2022 |
| Tarn Electrical Limited | Manufacturing | 2026 |
| Taroch Holdings Limited | Real estate | 2018 |
| Tarot & Tempest Ltd | Professional & scientific | 2025 |
| Tarple Ltd | Information & communication | 2025 |
| Tarpon Property Ltd | Real estate | 2020 |
| Tart Bakery Ltd | Manufacturing | 2025 |
| Tartan & Thistle Property Investments Limited | Real estate | 2022 |
| Tartarus Beers Limited | Manufacturing | 2021 |
| TAS GB Solutions Ltd | Administrative & support | 2015 |
| Tasc Consultant Limited | Professional & scientific | 2019 |
| Taseen Khan Ltd | Wholesale & retail | 2023 |
| Tashana Campbell Ltd | Health & social care | 2026 |
| Task Force Security Ltd | Administrative & support | 2024 |
| Taskbox Solutions Limited | Information & communication | 2018 |
| Tasker & Lacy Limited | Wholesale & retail | 2021 |
| Taskmaster Resources Limited | Administrative & support | 1996 |
| Tasksgrid Ltd | Administrative & support | 2025 |
| Tassgander Limited | Extraterritorial | 2000 |
| Taste Academy Ltd | Education | 2025 |
| Taste Alchemy Limited | Manufacturing | 2023 |
| Taste Chinese Takeaway Ltd | Hospitality | 2021 |
| Taste of Asia Leeds Ltd | Hospitality | 2021 |
| Taste of China (Garforth) Limited | Hospitality | 2021 |
| Taste of Xiangxi Ltd | Manufacturing | 2023 |
| Tasteimport Ltd | Information & communication | 2025 |
| Tasty Bite Leeds Ltd | Hospitality | 2025 |
| Tasty Bites Shawarma Ltd | Hospitality | 2020 |
| Tasty Bites Yorkshire Limited | Hospitality | 2024 |
| Tasty Flavour Ltd | Hospitality | 2020 |
| Tasty Food House Limited | Hospitality | 2021 |
| Tasty Shawarma Leeds Ltd | Hospitality | 2025 |
| Tastyplates Limited | Information & communication | 2025 |
| Tat-Tu Ltd | Extraterritorial | 2025 |
| Tate & Walsh Property Ltd | Real estate | 2025 |
| Tate Distribution Ltd | Wholesale & retail | 2023 |
| Tate Flooring Limited | Construction | 2026 |
| Tate Ford (Manchester) Limited | Professional & scientific | 1947 |
| Tate Network Solutions Ltd | Professional & scientific | 2021 |
| Tate of Leeds Limited. | Professional & scientific | 1983 |
| Tate Properties Limited | Real estate | 1997 |
| Tate Real Estate Limited | Real estate | 2025 |
| Tatefashion Ltd | Wholesale & retail | 2021 |
| Tates Travel Limited | Administrative & support | 2020 |
| Tatra Sklep Ltd | Wholesale & retail | 2024 |
| Tattsy INK Ltd | Information & communication | 2026 |
| Tatum Consultancy Limited | Professional & scientific | 2013 |
| Taula Consultancy Limited | Professional & scientific | 2022 |
| Taurus Law Limited | Professional & scientific | 2017 |
| Tavakoli Property Management Limited | Real estate | 2016 |