| THE Retrofit Company (SW) Ltd | Construction | 2024 |
| THE Rivers Trust | Education | 2004 |
| THE Scientific and Medical Network | Education | 2002 |
| THE Singer's Piano Limited | Education | 2020 |
| THE Studio Hair & Spa (Staines) Limited | Other services | 2011 |
| Then Group Ltd | Financial services | 2025 |
| Things Happen Here Ltd | Hospitality | 2023 |
| Thomas Dent Construction Limited | Construction | 2015 |
| TIM Fuge Leadwork Limited | Construction | 2017 |
| Timber Frame Design & Build Limited | Construction | 2020 |
| TJD Transport Limited | Transport & logistics | 2024 |
| TMA Inspections Limited | Manufacturing | 2004 |
| TOM Isted Limited | Arts & recreation | 2023 |
| Total Energy Solutions Ltd | Administrative & support | 2005 |
| Total Innovation EU Ltd | Wholesale & retail | 2008 |
| Toyday Toy Shop Limited | Wholesale & retail | 2009 |
| Treand Networks Limited | Other services | 2018 |
| Tregrill Design & Build Limited | Construction | 2014 |
| Treluggan Marina Limited | Manufacturing | 2003 |
| Trencrom Access Ltd | Transport & logistics | 2023 |
| Trevigro Accounts Ltd | Professional & scientific | 2023 |
| Tristan Mallett Engineering Ltd | Manufacturing | 2020 |
| Truck Mafia Ltd | Wholesale & retail | 2025 |
| TST (South West) CIC | Education | 2016 |
| Underhill Rentals Limited | Real estate | 2025 |
| Uniity IT Ltd | Information & communication | 2021 |
| Upwind Renewables Ltd | Construction | 2025 |
| Vega Power Ltd | Energy | 2026 |
| Vitality Fitness Tavistock Ltd | Arts & recreation | 2024 |
| Viztide Sotware Limited | Information & communication | 2025 |
| VO2 Fit Limited | Construction | 2008 |
| Vocal Footprint Community Interest Company | Arts & recreation | 2022 |
| Wakem Roofing Solutions Limited | Construction | 2022 |
| Watergate Hauliers & Agricultural Contractors Limited | Extraterritorial | 2015 |
| WE ARE Cornwall Holidays Ltd. | Hospitality | 2024 |
| Webber Architecture Limited | Professional & scientific | 2021 |
| Westcountry Embroidery SW Limited | Wholesale & retail | 2019 |
| Westcountry Rivers Limited | Professional & scientific | 1995 |
| Westcountry Rivers Trust | Agriculture & fishing | 2008 |
| Westward Instruments Employee Ownership Trustee Ltd | Professional & scientific | 2026 |
| Wheelsong Books Ltd | Information & communication | 2017 |
| Whetman Equipment Limited | Manufacturing | 2021 |
| Whole Country Care Limited | Administrative & support | 2024 |
| Whyte's Builders Ltd | Construction | 2023 |
| Wildlife Woodlands Ltd | Agriculture & fishing | 2005 |
| William Stewart Holtam Limited | Professional & scientific | 2018 |
| Wmpr Ltd. | Wholesale & retail | 2005 |
| Wolf Construction & Renewables SW Ltd | Construction | 2023 |
| Wyld Thyngz Limited | Education | 2016 |
| Wyre Catchment C.I.C. | Professional & scientific | 2021 |
| York Property Holdco Limited | Real estate | 2017 |
| York Property SPV 1 Limited | Real estate | 2017 |
| York Property SPV 2 Limited | Real estate | 2018 |
| Zaggy Lane (Callington) Ltd | Construction | 2023 |
| Zebraice Limited | Financial services | 2020 |
| Zero Carbon O&M Services Ltd | Public administration | 2021 |
| Zodiac Properties (UK) Limited | Financial services | 2014 |