| THE Sunni Bookstore Ltd | Wholesale & retail | 2026 |
| THE Switch Official Ltd | Wholesale & retail | 2026 |
| THE Sympathetic Trust | Other services | 2020 |
| THE TBP Company & Associates Ltd | Information & communication | 2017 |
| THE Tefirah Trust | Education | 2015 |
| THE Tiff Pack Ltd | Other services | 2023 |
| THE Toddy Club Ltd | Hospitality | 2026 |
| THE Tootal Takeaway Ltd | Hospitality | 2023 |
| THE Town Fryer Ltd | Hospitality | 2021 |
| THE Treasure in Clay International | Education | 2011 |
| THE UK Emissions Trading Group Limited | Administrative & support | 2004 |
| THE Van Vault Limited | Wholesale & retail | 2024 |
| THE Village Nursery (Trafford) Limited | Education | 2006 |
| THE Village Nursery Group Limited | Health & social care | 2015 |
| THE Wagman Family Private Investment Company | Professional & scientific | 2026 |
| THE Ward Academy Ltd | Arts & recreation | 2015 |
| THE Waterdale Group Limited | Financial services | 2020 |
| THE Weekly Link MCR Ltd | Professional & scientific | 2025 |
| THE Wellness Project C.I.C. | Health & social care | 2020 |
| THE White Hotel Ltd | Hospitality | 2016 |
| THE Whiteluck Group Ltd | Real estate | 2020 |
| THE Willows Care Home Limited | Health & social care | 2021 |
| THE Winning Spree Ltd | Wholesale & retail | 2026 |
| THE Working Class Movement Library | Arts & recreation | 2006 |
| THE Works Withy Grove Ltd | Real estate | 2021 |
| THE Yorkstone Paving Company Ltd | Mining & quarrying | 2020 |
| The:Room Ltd | Hospitality | 2015 |
| Theatre Hire Solutions Ltd | Information & communication | 2023 |
| Thebudgethome Limited | Real estate | 2024 |
| Thecleanedit Ltd | Administrative & support | 2025 |
| Theglobalkitchenuk Limited | Hospitality | 2025 |
| Theironcircle Ltd | Real estate | 2023 |
| Theonehuman Ltd | Information & communication | 2025 |
| Thepremiumestates (Two) Ltd | Real estate | 2024 |
| Thepremiumestates Ltd | Households | 2020 |
| Therecruitmentmarketingco Ltd | Professional & scientific | 2025 |
| Thermatic Building Services Limited | Real estate | 1997 |
| Thermatic Drainage Limited | Water & waste | 2009 |
| Thermatic Energy Services Limited | Professional & scientific | 2005 |
| Thermatic Homes Limited | Construction | 2014 |
| Thermatic Limited | Professional & scientific | 2009 |
| Thermatic Maintenance Limited | Extraterritorial | 2016 |
| Thermatic Renewables Limited | Extraterritorial | 2014 |
| Thermatic Technical FM Limited | Manufacturing | 2017 |
| Thermo Insulation Ltd | Professional & scientific | 2025 |
| Thesocialmediaoga Ltd | Professional & scientific | 2026 |
| Think Burger Ltd | Hospitality | 2025 |
| Think Search Group Limited | Administrative & support | 2011 |
| Third EYE Surveillance Ltd | Administrative & support | 2025 |
| Third Nominees Ltd | Extraterritorial | 2020 |
| Thirst Relational and Sexual Therapies Ltd | Education | 2024 |
| Thirty King Street Limited | Real estate | 1965 |
| Thirty One Human Services Ltd | Administrative & support | 2019 |
| Thirty One Resources Limited | Professional & scientific | 1993 |
| Thistleberry Gardens Management Company Limited | Households | 2025 |
| Thomas Alexander Homes (Yorkshire) Limited | Construction | 2021 |
| Thomas Alexander Homes Construction Limited | Construction | 2022 |
| Thomas Alexander Homes SPV 1 Limited | Construction | 2021 |
| Thomas Alexander Homes SPV 10 Limited | Construction | 2025 |
| Thomas Alexander Homes SPV 11 Limited | Construction | 2025 |
| Thomas Alexander Homes SPV 12 Limited | Construction | 2025 |
| Thomas Alexander Homes SPV 13 Limited | Construction | 2025 |
| Thomas Alexander Homes SPV 14 Limited | Construction | 2025 |
| Thomas Alexander Homes SPV 15 Limited | Construction | 2026 |
| Thomas Alexander Homes SPV 16 Limited | Construction | 2026 |
| Thomas Alexander Homes SPV 17 Limited | Construction | 2026 |
| Thomas Alexander Homes SPV 2 Limited | Construction | 2021 |
| Thomas Alexander Homes SPV 3 Limited | Construction | 2022 |
| Thomas Alexander Homes SPV 4 Limited | Construction | 2022 |
| Thomas Alexander Homes SPV 5 Limited | Construction | 2022 |
| Thomas Alexander Homes SPV 6 Limited | Construction | 2022 |
| Thomas Alexander Homes SPV 7 Limited | Construction | 2022 |
| Thomas Alexander Homes SPV 8 Limited | Construction | 2023 |
| Thomas Alexander Homes SPV 9 Limited | Construction | 2024 |
| Thomas Frederick & Company Limited | Wholesale & retail | 1940 |
| Thomas Kneale & Co. EOT Trustee Limited | Professional & scientific | 2023 |
| Thomas Kneale & Co. Limited | Wholesale & retail | 1948 |
| Thomps 16 Limited | Extraterritorial | 2015 |
| Thompsons & Navigators for Children Community Interest Company | Education | 2026 |
| Thompsons Lifelong Learning Ltd | Education | 2024 |
| Thornbirds Hospitality (NW) Ltd | Hospitality | 2024 |
| Thornbirds Hospitality Ltd | Hospitality | 2018 |
| Thornley Consulting Ltd | Information & communication | 2013 |
| Thorpe & Co Living Ltd | Real estate | 2021 |
| Thorpe & Co Property Ltd | Real estate | 2016 |
| Thread to Lash Limited | Other services | 2019 |
| Three Brothers General Enterprise Ltd | Real estate | 2024 |
| Three FLO Fitness Ltd | Arts & recreation | 2021 |
| Three Pillars Trust | Other services | 2008 |
| Threeway Corporate NO.1 Limited | Extraterritorial | 2016 |
| Threeway Corporate NO.2 Limited | Extraterritorial | 2016 |
| Thri-V Wellness Ltd | Health & social care | 2025 |
| Thrico Ltd | Other services | 2025 |
| Thrive Childcare and Education Holdings Limited | Financial services | 2019 |
| Thrive Childcare and Education Topco Limited | Financial services | 2019 |
| Thronerose Ltd | Real estate | 2021 |
| Thunderball Associates Ltd | Real estate | 2013 |
| Thunderhawk Studio Ltd | Information & communication | 2022 |
| Tiako & SON Ltd | Manufacturing | 2025 |
| Tich Global Ltd | Information & communication | 2025 |