| Travellers Incense Ltd | Wholesale & retail | 2025 |
| Travellers Rest (Cross Gates) Ltd | Hospitality | 2019 |
| Traventure Visa Limited | Education | 2025 |
| Travlyn Ltd | Transport & logistics | 2025 |
| Treadiva Ltd | Wholesale & retail | 2026 |
| Tream Digital Ltd | Information & communication | 2026 |
| Treasure Lettings Ltd | Real estate | 2025 |
| Treasure Loop Ltd | Wholesale & retail | 2025 |
| Treasure Properties (Bradford) Ltd | Real estate | 2026 |
| Treasure Shop Ltd | Wholesale & retail | 2025 |
| Treat Street by Eisa Ltd | Wholesale & retail | 2026 |
| Treatco Ltd | Manufacturing | 2026 |
| Tree and Hedge Care Limited | Administrative & support | 2025 |
| Tree Workers Ltd | Administrative & support | 2025 |
| Treeglade Properties Limited | Professional & scientific | 2003 |
| Treehouse Express Limited | Manufacturing | 2025 |
| Treetop House Ltd | Households | 2022 |
| Treetop Properties (BFD) Ltd | Real estate | 2023 |
| Trehunter Ltd | Wholesale & retail | 2025 |
| Trektrove Limited | Wholesale & retail | 2025 |
| Trenchfuel Ltd | Wholesale & retail | 2025 |
| Trend Autopoint Ltd | Wholesale & retail | 2013 |
| Trend Catchy Ltd | Wholesale & retail | 2026 |
| Trend Craze Ltd | Wholesale & retail | 2024 |
| Trend Envy Ltd | Wholesale & retail | 2025 |
| Trend Media Limited | Information & communication | 2025 |
| Trending ME Limited | Wholesale & retail | 2020 |
| Trendmac Limited | Wholesale & retail | 2025 |
| Trendsetter Marketing Limited | Manufacturing | 1973 |
| Trendy Mall Ltd | Wholesale & retail | 2024 |
| Trendzymart Ltd | Wholesale & retail | 2025 |
| Trent Hill Limited | Administrative & support | 2012 |
| Tresor Interiors Ltd | Wholesale & retail | 2023 |
| Trevaughn Terrelonge Ltd | Wholesale & retail | 2018 |
| Trevor Iles Limited | Manufacturing | 1973 |
| Tri-Imp Properties Limited | Real estate | 2024 |
| Tri-Print (Holdings) Limited | Manufacturing | 2020 |
| Tri-Print Limited | Manufacturing | 1977 |
| Tribal Rugs House Limited | Wholesale & retail | 2023 |
| Tribe and Fable Ltd | Other services | 2013 |
| Tribeca Media Ltd | Wholesale & retail | 2017 |
| Tribena Foods Limited | Other services | 2017 |
| Tribute Acts Management Limited | Arts & recreation | 2017 |
| Trickshots Sports Pool Lounge Ltd | Arts & recreation | 2025 |
| Tricolor Homes Ltd | Real estate | 2020 |
| Tricolour Coatings Ltd | Manufacturing | 2014 |
| Trident Innovations Limited | Wholesale & retail | 2024 |
| Trident Smiles Limited | Health & social care | 2022 |
| Trident Sports Group Limited | Health & social care | 2023 |
| Trident Supplies Ltd | Wholesale & retail | 2026 |
| Triecopack Limited | Wholesale & retail | 2025 |
| Trigger Thumb Band Ltd | Arts & recreation | 2025 |
| Trilliant Limited | Manufacturing | 1999 |
| Trilliant Solutions Limited | Manufacturing | 1999 |
| Trillionhair Training Academy & Community Wellbeing Limited | Other services | 2024 |
| Trillionz Car Hire Limited | Administrative & support | 2025 |
| Trillionz Ltd | Hospitality | 2025 |
| Trilogy (Leamington Spa) Limited | Administrative & support | 2009 |
| Trimming YOU Ltd | Information & communication | 2015 |
| Trinity Business and Property Ltd | Real estate | 2025 |
| Trinity Business Sales Ltd | Real estate | 2024 |
| Trinity Ministries Bradford | Other services | 2014 |
| Trinity P U Limited | Professional & scientific | 2022 |
| Trinity Prestige Ltd | Administrative & support | 2026 |
| Trinity Property Surveyors Ltd | Real estate | 2022 |
| Trinity Retail Sales Ltd | Real estate | 2024 |
| Trinity Umbs Limited | Professional & scientific | 2024 |
| Trinstar Group Limited | Professional & scientific | 2024 |
| Trinstar Umbrella Limited | Professional & scientific | 2024 |
| Trio Medicals PAY Limited | Professional & scientific | 2025 |
| Triple 3 Construction Limited | Construction | 2025 |
| Triple a Cleaning Services Ltd | Administrative & support | 2025 |
| Triple a Investments Limited | Financial services | 2024 |
| Triple a Ltd | Wholesale & retail | 2025 |
| Triple a Skips Coventry Limited | Water & waste | 2023 |
| Triple B Property Developments Ltd | Real estate | 2016 |
| Triple ESS Shine Ltd | Administrative & support | 2025 |
| Triple H Recovery's Ltd | Transport & logistics | 2024 |
| Triple K Builders Limited | Construction | 2022 |
| Triple M Transport Limited | Transport & logistics | 2025 |
| Triple Tee-M Ltd | Health & social care | 2014 |
| Triple X Car Spares Ltd | Wholesale & retail | 2025 |
| Triplejam Ltd | Households | 2025 |
| Tripod Services Ltd | Administrative & support | 2018 |
| Tripoura Ltd | Administrative & support | 2026 |
| Tripple a Empire Limited | Wholesale & retail | 2025 |
| Triptailor Limited | Administrative & support | 2025 |
| Triton Communications.Co.Uk Ltd | Information & communication | 2002 |
| Trivon PVT Ltd | Professional & scientific | 2025 |
| TRO Initiative CIC | Education | 2025 |
| Trojan Wear Limited | Wholesale & retail | 2024 |
| Trophy Shack Limited | Other services | 2019 |
| Tropical Continent Foods Ltd | Wholesale & retail | 2026 |
| Tropical Ices Limited | Extraterritorial | 2008 |
| Tropikal Food Limited | Manufacturing | 2013 |
| Trove 92 Ltd | Hospitality | 2023 |
| Trovenest Ltd | Wholesale & retail | 2025 |
| Trovia Solutions Ltd | Information & communication | 2023 |
| TRR Management Services Ltd | Professional & scientific | 2022 |
| TRT Trading Ltd | Wholesale & retail | 2025 |