| TEJ Wholesale Ltd | Wholesale & retail | 2025 |
| Tejal Ltd | Real estate | 2023 |
| Tejas Consulting Ltd. | Wholesale & retail | 2011 |
| Tejassu Ltd | Wholesale & retail | 2026 |
| Tejasvi Logistics Ltd | Transport & logistics | 2026 |
| Tejay Sportswear Limited | Manufacturing | 1991 |
| Tejconsulting Ltd | Administrative & support | 2025 |
| Teji-Transport Ltd | Transport & logistics | 2019 |
| Tejinder Overseas UK Ltd | Information & communication | 2023 |
| TEK 4 Group 2022 Limited | Administrative & support | 2022 |
| TEK 4 Limited | Manufacturing | 2003 |
| Tekkle IT Ltd | Information & communication | 2025 |
| Tekmo Group Ltd | Administrative & support | 2024 |
| Teksha Limited | Wholesale & retail | 2024 |
| Teksrv Ltd | Information & communication | 2024 |
| Tekzek Ltd | Wholesale & retail | 2024 |
| Telali Limited | Information & communication | 2011 |
| Telbiz Limited | Wholesale & retail | 2024 |
| Telco Group Ltd | Information & communication | 2017 |
| Tele Link Taxis Limited | Transport & logistics | 2010 |
| Telecom Care Limited | Information & communication | 2009 |
| Telegames Limited | Wholesale & retail | 1988 |
| Teleview Limited | Wholesale & retail | 2008 |
| Teleview Marketing Limited | Professional & scientific | 1990 |
| Telfi Limited | Real estate | 2026 |
| Telford Drivers Ltd | Transport & logistics | 2026 |
| Teli Holdings Limited | Real estate | 2025 |
| Teli Trading Limited | Real estate | 2025 |
| Teli's Spicy Limited | Hospitality | 2018 |
| Teli's Washpot Ltd | Other services | 2017 |
| Tellehaus Studio Ltd | Arts & recreation | 2026 |
| Telling Estates Ltd | Real estate | 2026 |
| Tellis Place (Management) Company Limited | Households | 2001 |
| Temfintin Limited | Health & social care | 2020 |
| Temp Trade Recruitment Ltd | Administrative & support | 2024 |
| Templar Management Limited | Construction | 2009 |
| Temple Fort Investments Ltd | Real estate | 2021 |
| Temple Greens Limited | Agriculture & fishing | 2020 |
| Temple of Seitan Holdings Ltd | Financial services | 2022 |
| Temple of Seitan Limited | Manufacturing | 2019 |
| Templeman-Williams Investments Limited | Professional & scientific | 2005 |
| TEN Circles Ltd | Hospitality | 2022 |
| TEN TEN 15 Ltd | Financial services | 2022 |
| TEN9EIGHT Ltd | Professional & scientific | 2017 |
| Tenacity Planning Consultants Limited | Professional & scientific | 2018 |
| Tenacitytm Ltd | Information & communication | 2025 |
| Tenant Support Team Ltd | Other services | 2025 |
| Tender-Hearted Care Limited | Public administration | 2024 |
| Tendercaregb Ltd | Health & social care | 2021 |
| Tenet Bodyworks Ltd | Education | 2021 |
| Tengrain Science Limited | Agriculture & fishing | 2021 |
| Tenn Properties Limited | Real estate | 2023 |
| Tennis Leicestershire Limited | Arts & recreation | 2005 |
| Tennyson Trading Company Ltd | Wholesale & retail | 2025 |
| Tensorix Ltd | Manufacturing | 2026 |
| Tenys Ltd | Transport & logistics | 2014 |
| TEO Properties Ltd | Real estate | 2021 |
| Tepa Lanfas Ltd | Wholesale & retail | 2025 |
| Teper MEP Ltd | Construction | 2019 |
| Teqneeks Ltd | Administrative & support | 2016 |
| Terai Group Limited | Wholesale & retail | 2026 |
| Terjon Group Limited | Financial services | 2021 |
| Terjon Scaffold Limited | Construction | 2016 |
| Terra Eco Ltd | Professional & scientific | 2024 |
| Terra Vista Digital Ltd | Information & communication | 2023 |
| Terraecuador Limited | Wholesale & retail | 2019 |
| Terrainandtimber Ltd | Manufacturing | 2026 |
| Terralith Ltd | Wholesale & retail | 2025 |
| Terravibe Limited | Real estate | 2024 |
| Terry Coupe Livestock Limited | Administrative & support | 2013 |
| Terry LEE Holdings Limited | Real estate | 2017 |
| Terry TS Ltd | Public administration | 2019 |
| Terton Kyle Ltd | Wholesale & retail | 2025 |
| Tesla Imaging Limited | Health & social care | 2015 |
| Tessal London Ltd | Wholesale & retail | 2018 |
| Tesseractica Ltd. | Information & communication | 2024 |
| Tessie Limited | Wholesale & retail | 2020 |
| Tessys Cleaning Ltd | Administrative & support | 2026 |
| Test & Tacho Limited | Wholesale & retail | 2012 |
| Testing Testing 123 Limited | Real estate | 2026 |
| Testq Technologies Limited | Information & communication | 2007 |
| Testudo Innovation LLP | | 2012 |
| Testum IT Services Ltd | Information & communication | 2024 |
| Tetik Ltd | Wholesale & retail | 2025 |
| Tetractys Academy Limited | Education | 2024 |
| Tetractys Holdings Limited | Financial services | 2024 |
| Teue Ltd | Other services | 2025 |
| Tevani Vashisht Consulting Ltd | Professional & scientific | 2024 |
| TEX Highcross Ltd | Hospitality | 2026 |
| TEX Leicester Ltd | Hospitality | 2020 |
| Tex-Print Ltd | Manufacturing | 2023 |
| Texan Jersey Holdings Limited | Real estate | 2021 |
| Texann & Co PVT Limited | Wholesale & retail | 2013 |
| Texlees UK Ltd | Manufacturing | 2023 |
| Text Wizard Copywriting Limited | Administrative & support | 2005 |
| Textile & Graphics Solutions Limited | Manufacturing | 2007 |
| Textile 9 Ltd | Wholesale & retail | 2019 |
| TEY Studios Ltd | Wholesale & retail | 2025 |
| Tezdyer Holdings Ltd | Financial services | 2025 |
| Tezl Group Ltd | Wholesale & retail | 2021 |