| Tech R US Limited | Wholesale & retail | 2019 |
| Techambition Ltd | Information & communication | 2012 |
| Techeal Ltd | Professional & scientific | 2024 |
| Techlot Ltd | Wholesale & retail | 2024 |
| Technical Infrastructure Solutions Ltd | Construction | 2007 |
| Technique on Site Coatings Ltd | Construction | 2016 |
| Technodrives Limited | Administrative & support | 1997 |
| Technology Advisory Limited | Information & communication | 2015 |
| Technology POD Ltd | Information & communication | 2017 |
| Technology Powered Services Limited | Information & communication | 2019 |
| Techsys Limited | Extraterritorial | 2023 |
| Techtronix Ltd | Wholesale & retail | 2016 |
| Teddy Scaffolding Ltd | Construction | 2024 |
| TEE Bros Limited | Hospitality | 2026 |
| TEE Track Cars Ltd | Administrative & support | 2025 |
| Teefatv Limited | Information & communication | 2023 |
| Teepee Digital Ltd | Information & communication | 2017 |
| Tees Valley Supplier Ltd | Wholesale & retail | 2021 |
| Teganical Limited | Financial services | 2026 |
| TEH Tools UK Ltd | Wholesale & retail | 2023 |
| Teig Ltd | Professional & scientific | 2022 |
| Telcom WST Ltd | Information & communication | 2025 |
| Teleaerials Digital Limited | Wholesale & retail | 2007 |
| Telindrixtech Ltd | Information & communication | 2025 |
| Telmak Limited | | 1982 |
| Telzone Limited | Information & communication | 2025 |
| Tembu Ltd | Extraterritorial | 2022 |
| Temi African Groceries Ltd | Wholesale & retail | 2021 |
| TEN Houses Residents Association Limited | Households | 1995 |
| Tenancydocuments.Com Ltd | Professional & scientific | 2025 |
| Tenant Eviction Law Limited | Professional & scientific | 2025 |
| Tengra Development Trust UK Ltd | Health & social care | 2025 |
| Terazzo Ltd. | Construction | 2012 |
| Terigone Limited | Wholesale & retail | 2025 |
| Terra Fusion Properties Ltd | Financial services | 2025 |
| Terra Loop Limited | Manufacturing | 2025 |
| Terrex Group Ltd | Construction | 2025 |
| Tesmark Ltd | Wholesale & retail | 2017 |
| Tesseract Solutions Ltd | Information & communication | 2025 |
| Testament Legacy Planning Ltd | Financial services | 2013 |
| Testimony Healthcare Limited | Health & social care | 2020 |
| Tethion Ltd | Professional & scientific | 2025 |
| Teti Afro-Caribbean Store Limited | Wholesale & retail | 2017 |
| Tetlow Construction Limited | Construction | 2005 |
| Texco Ltd | Manufacturing | 2010 |
| Textured Art Limited | Manufacturing | 2016 |
| Tezah Limited | Health & social care | 2023 |
| TFG Stage Technology Ltd | Wholesale & retail | 2000 |
| TG Electrical NW Ltd | Construction | 2020 |
| TGW Photobooths Ltd | Other services | 2024 |
| TH Day Care Ltd | Education | 2016 |
| TH Pharm Ltd | Health & social care | 2023 |
| Thai Culture Forum UK | Extraterritorial | 2002 |
| Thai WOK Noodle Bar Limited | Hospitality | 2012 |
| Thakrar Davies Investments Limited | Real estate | 2008 |
| Thames Residential Ltd | Real estate | 2023 |
| Thanet House Owners Company Limited | Households | 2018 |
| That Girl Ltd | Professional & scientific | 2025 |
| That Wine Cellar Ltd | Wholesale & retail | 2020 |
| Thawlarun Limited | Manufacturing | 2025 |
| THE 90 Club Ltd | Wholesale & retail | 2018 |
| THE A2Z Stores Limited | Wholesale & retail | 2019 |
| THE Abundance House Nation | Other services | 2025 |
| THE Accountants' Accountant Ltd | Administrative & support | 2023 |
| THE Activity Hub Ltd | Health & social care | 2026 |
| THE Airbnb Cleaning Company Limited | Administrative & support | 2025 |
| THE Aisle Edit Limited | Extraterritorial | 2023 |
| THE ARC Nursery Ltd | Education | 2026 |
| THE B.I.G C&D Company Ltd | Construction | 2026 |
| THE Barber Group NW Limited | Construction | 2025 |
| THE Barbers Shop (Ashton) Limited | Other services | 2003 |
| THE Barclay (Oldham) Ltd | Hospitality | 2018 |
| THE Barclay (Royton) Ltd | Hospitality | 2018 |
| THE Barkington Club Ltd | Other services | 2021 |
| THE BE VIP Group Limited | Financial services | 2022 |
| THE Beauty Establishment Ltd | Other services | 2019 |
| THE BEE Charm Limited | Wholesale & retail | 2019 |
| THE Beehive Club Limited | Education | 2019 |
| THE Bell Practice Ltd | Health & social care | 2005 |
| THE Birch Group Ltd | Extraterritorial | 2024 |
| THE Bliss Market Ltd | Wholesale & retail | 2024 |
| THE Board Cafe Cheadle Ltd | Real estate | 2021 |
| THE Body Consultants UK Limited | Other services | 2022 |
| THE Body KIT Ltd | Wholesale & retail | 2022 |
| THE Boiler Pro Heating Services Ltd | Construction | 2025 |
| THE Box King Ltd | Water & waste | 2023 |
| THE Bradshaw Pattern Company Limited | Manufacturing | 1993 |
| THE Bridge Consultancy Services Ltd | Education | 2023 |
| THE Bridge Hale Ltd | Administrative & support | 2019 |
| THE Brownie Joint Ltd | Hospitality | 2025 |
| THE Browton's Group Limited | Hospitality | 2026 |
| THE Bukhari Trust | Education | 2021 |
| THE Butcher's Plate Limited | Wholesale & retail | 2020 |
| THE Butchers Block (Oldham) Limited | Wholesale & retail | 2020 |
| THE Buttery (Greenfield) Limited | Hospitality | 2021 |
| THE Cafe Oldham Ltd | Manufacturing | 2020 |
| THE Camera Cabin Ltd | Wholesale & retail | 2022 |
| THE Camera Mill Ltd | Manufacturing | 2020 |
| THE Cannon Network Limited | Professional & scientific | 2016 |
| THE Car Spa NW Ltd | Manufacturing | 2026 |