| Talkwise Limited | Professional & scientific | 1999 |
| Tall Pines Management Limited | Households | 1998 |
| Tallat JE Ltd | Health & social care | 2018 |
| Tallsand Ltd | Construction | 1998 |
| Taloda Sweets Limited | Manufacturing | 2026 |
| Talymind Apps Ltd | Information & communication | 2025 |
| TAM Solutions Ltd | Transport & logistics | 2019 |
| Tambrose Sports Ltd | Wholesale & retail | 2026 |
| Tamtech Solutions Ltd | Information & communication | 2016 |
| Tamu Tamu Limited | Hospitality | 2022 |
| TAN & SOO Family Ltd | Real estate | 2026 |
| TAN 2 Ltd | Real estate | 2017 |
| TAN 3 Ltd | Real estate | 2017 |
| TAN 4 Ltd | Real estate | 2017 |
| TAN 5 Ltd | Real estate | 2017 |
| TAN 7 Ltd | Real estate | 2017 |
| Tan&Abbey Holdings Limited | Real estate | 2026 |
| Tana Social Work & Advocacy Ltd | Health & social care | 2018 |
| Tanabb Ltd | Real estate | 2021 |
| Tanaduk Wellness Experience LLP | | 2026 |
| Tandy Tandy & Tandy Ltd | Professional & scientific | 2009 |
| Tanfis Ltd | Real estate | 2019 |
| Tang Group Ltd | Education | 2016 |
| Tangent 1 Civil Engineering Ltd | Construction | 2018 |
| Tangent Wave Limited | Manufacturing | 2009 |
| Tangevity Limited | Health & social care | 2024 |
| Tanisa Indian Lounge Ltd | Hospitality | 2023 |
| Tantt Ltd | Real estate | 2021 |
| Tanumi Family Ltd | Real estate | 2025 |
| Tanushi Construction Ltd | Construction | 2021 |
| Tanyor Limited | Hospitality | 2024 |
| TAP Homes and Designs Ltd | Real estate | 2019 |
| Tapas Dining Ltd | Hospitality | 2024 |
| Tape Construction Limited | Construction | 2026 |
| Tapri More Than Chai Ltd | Hospitality | 2023 |
| Tapro Trading and Serivces (PVT) Ltd | Wholesale & retail | 2022 |
| Taqwa Foods Limited | Wholesale & retail | 2024 |
| Taqwa Online Ltd | Wholesale & retail | 2023 |
| Taqwa Trade Hub Ltd | Hospitality | 2024 |
| Tarar Group Ltd | Wholesale & retail | 2024 |
| Tarar London Ltd | Construction | 2020 |
| Tarar Perfect Services Ltd | Construction | 2021 |
| Tarar Tradelink Ltd | Wholesale & retail | 2025 |
| Tarek Property Investments Ltd | Real estate | 2019 |
| Target Consultancy Limited | Professional & scientific | 2017 |
| Target Property Maintenance Ltd | Construction | 2025 |
| Targus Cocoa and OIL Palm Plantation Ltd | Agriculture & fishing | 2025 |
| Tariq Jewellers of Kotli Ltd | Wholesale & retail | 2022 |
| Tariq Residential Limited | Households | 2025 |
| Tarsikka Construction Ltd | Construction | 2019 |
| Tarusov Autocraft Limited | Wholesale & retail | 2019 |
| Tarzan Exotics Ltd | Administrative & support | 2024 |
| Tasklink Agency Limited | Information & communication | 2025 |
| Tasswar Haulage Ltd | Transport & logistics | 2024 |
| Taste of India Group Ltd | Hospitality | 2015 |
| Taste of Kashmir Ltd | Hospitality | 2018 |
| Taste of Kotli Ltd | Hospitality | 2024 |
| Taste of Tawa Ltd | Hospitality | 2021 |
| Tasty Tales Limited | Administrative & support | 2004 |
| Tastys Chicken Limited | Hospitality | 2020 |
| Tatangawo Ltd | Health & social care | 2013 |
| Tates Coaches Ltd | Transport & logistics | 2003 |
| Tatpath Ltd | Transport & logistics | 2025 |
| Tatu Art&Desighn Limited | Professional & scientific | 2024 |
| Taurus Plastics Ltd | Manufacturing | 2025 |
| Tautvydas Meliunas Ltd | Construction | 2015 |
| Tavasya Food Ltd | Hospitality | 2024 |
| Tavistock Court (Luton) Limited | Real estate | 1986 |
| Tawakkul Gifts Ltd | Wholesale & retail | 2020 |
| Tawwa House Ltd | Hospitality | 2025 |
| Tax 786 Limited | Professional & scientific | 2019 |
| Tax Calculator Limited | Professional & scientific | 2021 |
| Tax Exec Limited | Professional & scientific | 2017 |
| Tax Return Filer Ltd | Professional & scientific | 2019 |
| Taxalian Seasonal Facilities Ltd | Administrative & support | 2025 |
| Taxbee Accountancy Ltd | Professional & scientific | 2022 |
| Taxi and Travel Ltd | Transport & logistics | 2024 |
| Taxi Test Academy Ltd | Administrative & support | 2024 |
| Taxlounge Ltd | Professional & scientific | 2007 |
| Taxshield (Accounting) Ltd | Professional & scientific | 2024 |
| Taxwise Accountancy (UK) Ltd | Professional & scientific | 2013 |
| Taxwise Online Ltd | Professional & scientific | 2024 |
| Taxy Group Ltd | Water & waste | 2025 |
| Taybbat Ltd | Wholesale & retail | 2021 |
| Taylor Made Miniatures Ltd | Manufacturing | 2025 |
| Taylor Walton NO.1 Limited | Professional & scientific | 1983 |
| Taylor Walton Secretarial Limited | Professional & scientific | 1982 |
| Taylored Group Services Ltd | Wholesale & retail | 2025 |
| Taylors Hill Motors Ltd | Wholesale & retail | 2020 |
| Taylors Motorcompany Ltd | Wholesale & retail | 2024 |
| Taylors Park Limited | Real estate | 2018 |
| Tayyab Foods Limited | Wholesale & retail | 2023 |
| TAZ Express Ltd | Administrative & support | 2016 |
| Tazo Finance Limited | Financial services | 2024 |
| TB Bennett Properties Ltd | Real estate | 2022 |
| TBL Motors Ltd | Wholesale & retail | 2024 |
| TBM Builders Ltd | Construction | 2020 |
| TBM Static Homes Rental and Sales Ltd | Real estate | 2025 |
| TC Force Cargo Ltd | Transport & logistics | 2025 |
| TC Maintenance Ltd | Construction | 2023 |