| THE United Barber Ltd | Other services | 2026 |
| THE Unsigned Club Ltd | Information & communication | 2021 |
| THE Upholstery Crew Limited | Manufacturing | 2025 |
| THE Urban Flooring Company Limited | Construction | 2021 |
| THE Urban Threadz Limited | Wholesale & retail | 2025 |
| THE Valley Junction 397 Limited | Hospitality | 1997 |
| THE Valley Restaurants Ltd | Hospitality | 2024 |
| THE Vampire Rabbit Limited | Hospitality | 2023 |
| THE Vape House Newcastle Ltd | Wholesale & retail | 2019 |
| THE Vicarage Residents Association Limited | Hospitality | 2004 |
| THE Victoria Washington Limited | Hospitality | 2020 |
| THE Victorian TAP Ltd | Hospitality | 2025 |
| THE Village Court Sunninghill Residents Management Company Limited | Households | 1991 |
| THE Village Inn Moseley Limited | Hospitality | 2013 |
| THE Virgin Money Foundation | Administrative & support | 2015 |
| THE Wardley Hotel Ltd | Hospitality | 2016 |
| THE Watch Repair Centre Limited | Other services | 1995 |
| THE WAX LAB Training Academy Limited | Education | 2025 |
| THE Wealden Dental Practice Limited | Health & social care | 2009 |
| THE Weathering Observatory Limited | Professional & scientific | 2026 |
| THE Weft Witch Ltd | Other services | 2024 |
| THE Well Woman Project Limited | Health & social care | 2024 |
| THE Wellington (Newton) Ltd | Hospitality | 2008 |
| THE Wellness Centre North-East Limited | Health & social care | 2004 |
| THE Wellness Reset Ltd | Other services | 2026 |
| THE Wellness Tribe CIC | Professional & scientific | 2020 |
| THE West END Group Newcastle Ltd | Wholesale & retail | 2021 |
| THE Westerdale Court (Middlesbrough Road) Management Company Limited | Real estate | 2001 |
| THE Westgate Fish and Grill Ltd | Hospitality | 2020 |
| THE Whitburn Hall Management Company Limited | Real estate | 1982 |
| THE Wicket Maiden Ltd | Information & communication | 2025 |
| THE Wild Northerner Limited | Hospitality | 2025 |
| THE Wild Resort Ltd | Agriculture & fishing | 2024 |
| THE Will Guys Ltd | Financial services | 2018 |
| THE Will Place Limited | Professional & scientific | 2023 |
| THE Willows (Gateshead) Management Company Limited | Real estate | 2006 |
| THE Wills (Newcastle) Management Company Limited | Households | 1998 |
| THE Withers (Netherton) Residents Management Company Limited | Households | 2022 |
| THE Wonderful WIG Company Limited | Wholesale & retail | 2016 |
| THE Wondering Hobo Ltd | Administrative & support | 2025 |
| THE Works Advertising Limited | Professional & scientific | 2005 |
| THE Works Design and Print Limited | Professional & scientific | 2014 |
| THE Wright Landlords and Investors Ltd | Real estate | 2019 |
| THE Yard NE Limited | Hospitality | 2021 |
| The-Obs&Gyn-Doctor Ltd | Health & social care | 2022 |
| Theatre N16 Limited | Arts & recreation | 2015 |
| Thebiryani Hub Ltd | Hospitality | 2026 |
| Thebrowartist Ltd | Other services | 2021 |
| Thecmt Ltd | Households | 2024 |
| Thedesignhouse.Co.Uk Limited | Professional & scientific | 2021 |
| Thedragon Ltd | Hospitality | 2025 |
| Theenergyhub.Co.Uk Ltd | Administrative & support | 2020 |
| Thegreenbull Ltd | Wholesale & retail | 2021 |
| Thejps Ltd | Real estate | 2025 |
| Thelivelab Limited | Professional & scientific | 2026 |
| Themcr Ltd | Other services | 2012 |
| Then Estates Ltd | Agriculture & fishing | 2021 |
| Then PG Ltd | Real estate | 2022 |
| Then WH Limited | Construction | 2022 |
| Thenortheastmobilebutchers Ltd | Wholesale & retail | 2026 |
| Theo & Oliver Limited | Hospitality | 2024 |
| Theon Developments Limited | Construction | 2017 |
| Theory Translated Ltd | Wholesale & retail | 2023 |
| Thepowerhousefitness Limited | Arts & recreation | 2025 |
| Therapaws North East Ltd | Other services | 2023 |
| Therapy Begins Ltd | Health & social care | 2024 |
| Therenovatorsguild Limited | Construction | 2025 |
| Therion Ltd | Information & communication | 2024 |
| Thermal Transfer Engineering Limited | Extraterritorial | 2010 |
| Thesignaturestreetchef Ltd | Hospitality | 2026 |
| Thestrategysmith Ltd | Real estate | 2020 |
| Thesygn LAB Ltd | Professional & scientific | 2020 |
| They.Design Ltd | Information & communication | 2022 |
| THG Systemer Ltd | Administrative & support | 2008 |
| Think Active Labs Ltd | Information & communication | 2019 |
| Think Consulting Ltd | Information & communication | 2017 |
| Think DO Make Ltd | Information & communication | 2017 |
| Think Fusioncore Ltd | Professional & scientific | 2023 |
| Think Global Impact Ltd | Professional & scientific | 2025 |
| Think Skyward Ltd | Wholesale & retail | 2025 |
| Think! Flooring Ltd | Construction | 2011 |
| Thinknaturalfoods Ltd | Manufacturing | 2025 |
| Thinkroomten Limited | Professional & scientific | 2007 |
| Thiotech Limited | Professional & scientific | 2021 |
| Third EYE Neurotech Ltd | Health & social care | 2014 |
| Third Stone Investments Limited | Financial services | 2023 |
| Thirsty GAL Drinks Ltd | Hospitality | 2021 |
| Thirteen Property Holdings Limited | Financial services | 2024 |
| Thirty-Six Lime Street Limited | Real estate | 1985 |
| This IS Coco Limited | Information & communication | 2022 |
| This Little World Limited | Professional & scientific | 2008 |
| Thislife Collective CIC | Education | 2026 |
| Thomas & Meighen Solicitors Limited | Professional & scientific | 2002 |
| Thomas Blake Cosmetic Creams Limited | Manufacturing | 2008 |
| Thomas Foster Limited | Professional & scientific | 2019 |
| Thomas Gatherar Ltd | Construction | 2013 |
| Thomas James Investments Limited | Real estate | 2018 |
| Thomas Levi Construction Ltd | Construction | 2023 |
| Thomas Magnay & Co LLP | | 2013 |
| Thomas Moody & Sons Limited | Real estate | 2024 |