| Tennant Limited | Real estate | 2005 |
| Terrasense Ltd | Professional & scientific | 2025 |
| THE Central Dartmoor Farm Cluster CIC | Agriculture & fishing | 2023 |
| THE Dartmoor Cleaning Company Ltd | Administrative & support | 2017 |
| THE Drake Manor Inn Limited | Hospitality | 2003 |
| THE Earl Grey Ltd | Professional & scientific | 2024 |
| THE Edgcumbe Hotel Ltd | Hospitality | 2024 |
| THE Feathers Management Company Limited | Households | 2007 |
| THE Flower Miners Limited | Manufacturing | 2019 |
| THE Grange Flats 1,2, 7 Management Company Ltd | Households | 2018 |
| THE Laundry Cupboard Ltd | Other services | 2020 |
| THE Nudge Unit Ltd | Professional & scientific | 2021 |
| THE Recruitment Geeks NMR Ltd | Administrative & support | 2017 |
| THE Rock Practice Limited | Health & social care | 2020 |
| THE Wedding Film Company Limited | Information & communication | 2022 |
| Three and SIX Films Ltd | Information & communication | 2009 |
| Tiger Pause Consulting Limited | Professional & scientific | 2016 |
| Tiny Wilds Limited | Health & social care | 2021 |
| TOK Time Ltd | Administrative & support | 2022 |
| Traber-Fowler Limited | Wholesale & retail | 2023 |
| TT Developments (Southwest) Ltd | Construction | 2007 |
| TT Property Management Ltd | Real estate | 2006 |
| UDO Consultancy Limited | Administrative & support | 2017 |
| Unique Rust Ltd | Manufacturing | 2018 |
| Urological Surgery Ltd | Health & social care | 2019 |
| Vision Energy Ltd | Construction | 2024 |
| Vision Operations Ltd | Construction | 2018 |
| Vixen Medical Ltd | Real estate | 2023 |
| Vmmg Ltd | Real estate | 2025 |
| Weir Quay Boatyard Limited | Manufacturing | 2021 |
| Weir Quay Community Watersports Hub Club Limited | Arts & recreation | 2010 |
| West Devon Enterprises Limited | Hospitality | 2012 |
| Whisperly Ltd | Professional & scientific | 2024 |
| Wise Roots CIC | Hospitality | 2022 |
| World Retro Limited | Wholesale & retail | 2021 |
| Worth Electrical Wholesalers Ltd | Wholesale & retail | 2014 |
| WYE Property Management Ltd | Administrative & support | 2017 |
| Yealmpton Dental Practice Limited | Health & social care | 2020 |
| Yelverton Care LLP | | 2016 |
| Yelverton Golf Club Limited | Arts & recreation | 2018 |
| Yennadon Quarry Limited | Extraterritorial | 2011 |
| Yennadon Stone Ltd | Mining & quarrying | 2004 |
| YEW Two Ltd | Manufacturing | 2014 |
| You'Re SO Vein Limited | Health & social care | 2022 |