| THE Great Annual Savings Company Ltd | Professional & scientific | 2012 |
| THE Green Tree (Middlesbrough) Ltd | Hospitality | 2019 |
| THE Hawthorns Lodge Limited | Health & social care | 2006 |
| THE Healing Share - Wellbeing & Therapies CIC | Health & social care | 2022 |
| THE Hidden Hearth Within Ltd | Arts & recreation | 2026 |
| THE Hideaway at Thorpe Thewles Ltd | Hospitality | 2009 |
| THE Honeycrisp Group Limited | Financial services | 2023 |
| THE HR Lens Ltd | Administrative & support | 2022 |
| THE Huddle Technology Limited | Information & communication | 2025 |
| THE Ingleby Events Company Ltd | Hospitality | 2022 |
| THE Investing and Saving Alliance | Education | 1998 |
| THE Investment and Savings Association | Extraterritorial | 2016 |
| THE Jasper Cacao Project Ltd | Hospitality | 2023 |
| THE Jasper Community Space Ltd | Health & social care | 2025 |
| THE JT Academy Ltd | Arts & recreation | 2024 |
| THE JT Elite Performance Centre Limited | Arts & recreation | 2025 |
| THE Key Whisperer Ltd | Other services | 2025 |
| THE King & I (Norton) Ltd | Other services | 2023 |
| THE Kingsley Corporation Limited | Administrative & support | 2023 |
| THE Kopper KEG Ltd | Hospitality | 2020 |
| THE Last Post Memorial Bar & Veterans Hub Limited | Hospitality | 2020 |
| THE Life Project Group Ltd | Professional & scientific | 2022 |
| THE Lift Guys Ltd | Manufacturing | 2020 |
| THE Little Reins Co. Ltd | Wholesale & retail | 2026 |
| THE Little Role Play Company Ltd | Hospitality | 2026 |
| THE Loaded Children Bible Limited | Education | 2024 |
| THE Loaded Travellers Limited | Administrative & support | 2025 |
| THE Loft Bar & Kitchen Ltd | Hospitality | 2025 |
| THE MAP Group (UK) Employee Ownership Trustee Limited | Financial services | 2023 |
| THE Marine Hotel (Seaton Carew) Limited | Hospitality | 2010 |
| THE Masham Public House Limited | Hospitality | 2006 |
| THE Matthew Tree Project | Administrative & support | 2010 |
| THE Micro Lounge Ltd | Other services | 2019 |
| THE Montessori People Ltd | Education | 2011 |
| THE National Geothermal Centre Limited | Professional & scientific | 2024 |
| THE Northern Football League Ltd | Arts & recreation | 2023 |
| THE Online Running Coach Ltd | Education | 2017 |
| THE Original Tailoring Ltd | Wholesale & retail | 2023 |
| THE Oval Childcare Nursery Ltd | Education | 2018 |
| THE Oven (North East) Limited | Hospitality | 2015 |
| THE Parmesan House Limited | Hospitality | 2019 |
| THE Personalisation Station Ltd | Wholesale & retail | 2026 |
| THE Petite Agency Ltd | Professional & scientific | 2020 |
| THE Platforms Association | Other services | 2024 |
| THE Private Teachers and Home Schooling Limited | Education | 2020 |
| THE Ramsgate Public House Ltd | Hospitality | 2020 |
| THE Reay Group Ltd | Financial services | 2025 |
| THE Red Lion (Norton) Limited | Hospitality | 2012 |
| THE Red Lion Inn (JB) Limited | Hospitality | 2017 |
| THE Redeemed Christian Church of GOD Freedom Hall Ltd | Other services | 2023 |
| THE Redeemed Christian Church of GOD Great & Mighty Parish Ltd | Other services | 2024 |
| THE Reform LAB Teesside Ltd | Arts & recreation | 2024 |
| THE Restoration Company (Teesside) Limited | Administrative & support | 2001 |
| THE Retrofit Guys Ltd | Construction | 2025 |
| THE Rise UP Enterprise Limited | Health & social care | 2021 |
| THE Secret Shed Limited | Other services | 2019 |
| THE Security Training Academy Ltd | Education | 2011 |
| THE Sell My Group Ltd | Wholesale & retail | 2021 |
| THE Slobbery Dog RAW Limited | Administrative & support | 2020 |
| THE Social Gene Limited | Information & communication | 2018 |
| THE Studio by Alex Ltd | Other services | 2024 |
| THE Syyncro Group Ltd | Information & communication | 2023 |
| THE TAN Shop @ Redcar Ltd | Other services | 2024 |
| THE TAN Shop at Harrogate Ltd | Other services | 2026 |
| THE Tees Launchpad Ltd | Education | 2026 |
| THE Teesside Flapjack Company Ltd | Manufacturing | 2024 |
| THE Teesside Solar Company Ltd | Construction | 2026 |
| THE Training Directory Ltd | Information & communication | 2025 |
| THE Tranquility Room Ltd | Health & social care | 2022 |
| THE Treehouse Tea Room Ltd | Hospitality | 2023 |
| THE Twisted Peel Norton Ltd | Hospitality | 2024 |
| THE Unbuilt Visualisation Ltd | Professional & scientific | 2023 |
| THE Underdog Academy Ltd | Information & communication | 2025 |
| THE Universal Reporting Network Limited | Information & communication | 2025 |
| THE Van (Wilton) Limited | Hospitality | 2020 |
| THE Vehicle Trader Ltd | Wholesale & retail | 2026 |
| THE Village Beauty Room Ltd | Other services | 2014 |
| THE Village Deli Hartburn Limited | Hospitality | 2016 |
| THE Vinyl Shark Limited | Wholesale & retail | 2024 |
| THE Wabi-Sabi Academy Limited | Arts & recreation | 2012 |
| THE Warehouse Kitchen & Bar Ltd | Hospitality | 2022 |
| THE WAX Removal Co Limited | Other services | 2024 |
| THE Whitehouse Farm Management Ltd | Professional & scientific | 2026 |
| THE Whole Story Ltd | Information & communication | 2026 |
| THE Will Lawyers Limited | Professional & scientific | 2024 |
| THE Wintersgate Group Limited | Real estate | 2024 |
| THE Winton Watch Company Limited | Wholesale & retail | 2020 |
| THE Wynyard Aesthetics Academy LLP | | 2016 |
| THE Yorkshire Gate Company Ltd | Construction | 2025 |
| Theakston Estates (Darlington) Limited | Real estate | 2016 |
| Theakston Estates (Management) Limited | Real estate | 2017 |
| Theakston Estates (Skerningham) Limited | Real estate | 2015 |
| Theakston Estates Ground Maintenance Limited | Administrative & support | 2014 |
| Theakston Homes Limited | Administrative & support | 2014 |
| Thecarwarehouse.Co.Uk Limited | Wholesale & retail | 2011 |
| Themis Immigration Services Ltd. | Professional & scientific | 2023 |
| Themunchbox-One Ltd | Hospitality | 2024 |
| Theparkwoodathartburn Ltd | Administrative & support | 2025 |
| Thepb Ltd | Real estate | 2023 |
| Thermulon Ltd | Manufacturing | 2019 |