| Tarka Joinery Ltd | Construction | 2021 |
| Tarka Leisure and Entertainment Ltd | Arts & recreation | 2019 |
| Tarka Media Group Ltd | Information & communication | 2025 |
| Tarka Recycling Ltd | Water & waste | 2021 |
| Tarka Removals Ltd | Transport & logistics | 2024 |
| Tarka Self Storage Ltd | Administrative & support | 2020 |
| Tarka Tots Limited | Education | 2004 |
| Tarka Trail Otters Ltd | Wholesale & retail | 2025 |
| Tarka Vending Ltd | Wholesale & retail | 2026 |
| Taurus Courts Ltd | Construction | 2023 |
| TAW & Torridge Scaffolding Ltd | Construction | 2012 |
| TAW Garage (Holdings) Limited | Real estate | 2009 |
| TAW Garages Limited | Wholesale & retail | 1967 |
| TAW Valley Organics Ltd | Agriculture & fishing | 2019 |
| Taylor Underwood Limited | Real estate | 2008 |
| TC Hotel Ltd | Hospitality | 2012 |
| TCG Studios Ltd | Wholesale & retail | 2022 |
| TDR Summers Limited | Construction | 2008 |
| Teash Trading Ltd | Wholesale & retail | 2024 |
| TEN Counties Limited | Construction | 2010 |
| TEN Recruit Limited | Professional & scientific | 2014 |
| Tennacott Farm Holidays Ltd | Hospitality | 2011 |
| Terry's Flooring Ltd. | Construction | 2003 |
| Tetcetera Ltd | Agriculture & fishing | 2024 |
| THE 762 Club | Manufacturing | 2010 |
| THE Ally Cat Fabrications Limited | Manufacturing | 2017 |
| THE Appledore Book Festival | Other services | 2016 |
| THE Bell Inn at Monkleigh Ltd | Hospitality | 2025 |
| THE Bell Inn Monkleigh LLP | | 2019 |
| THE Berry Park Project Ltd | Households | 2020 |
| THE Bideford Lighthouse Project CIC | Health & social care | 2016 |
| THE Big Domain Limited | Extraterritorial | 2003 |
| THE Bude Canal Trust Limited | Administrative & support | 1996 |
| THE Burton at Bideford | Arts & recreation | 2015 |
| THE Burton Enterprises Limited | Wholesale & retail | 2015 |
| THE Bush Inn (Morwenstow) Ltd | Administrative & support | 2017 |
| THE Butler Group Ltd | Wholesale & retail | 2020 |
| THE Coach & Horses at Buckland Brewer Limited | Hospitality | 2013 |
| THE Company of Landscapers Limited | Administrative & support | 2008 |
| THE Cool Ice Box Company Ltd | Wholesale & retail | 2011 |
| THE Curve Enterprise C.I.C. | Administrative & support | 2025 |
| THE Devon Beacon House Limited | Hospitality | 2012 |
| THE Donnachaidh Group Ltd. | Manufacturing | 2018 |
| THE Elephant Group | Education | 2019 |
| THE Event Clothing Company Limited | Manufacturing | 2015 |
| THE Farewell Collective Limited | Wholesale & retail | 2026 |
| THE Fresh Flower Company Limited | Wholesale & retail | 2016 |
| THE Gaiety, 109 Irsha Street Appledore, Company Limited | Real estate | 2018 |
| THE Gatehouse Management Company (Nantwich) Limited | Real estate | 2005 |
| THE Gayeanne Management Company Limited | Real estate | 2005 |
| THE Good AS Gold Property Group Limited | Real estate | 2022 |
| THE Grampus Inn Limited | Hospitality | 2013 |
| THE Greyhound Overton LLP | | 2025 |
| THE Henley Larder Ltd | Wholesale & retail | 2020 |
| THE Horse Place Ltd | Hospitality | 2019 |
| THE KEG & Bottle Ltd | Wholesale & retail | 2007 |
| THE Leadership Development Academy Ltd. | Professional & scientific | 2010 |
| THE Liberal Catholic Church Grail Community | Other services | 2012 |
| THE Little Wedding Company Ltd. | Manufacturing | 2012 |
| THE Mixing Bowl Method CIC | Education | 2023 |
| THE New Inn Hotel Clovelly Limited | Hospitality | 2025 |
| THE Nomad Larder Limited | Hospitality | 2022 |
| THE Northam Care Trust | Health & social care | 2000 |
| THE Old Post Office Clovelly Limited | Wholesale & retail | 2020 |
| THE Old School Owners Group Limited | Households | 2025 |
| THE Old Trawlers Ltd | Real estate | 2026 |
| THE Olden Group Limited | Professional & scientific | 2002 |
| THE Original Cottage Company Limited | Administrative & support | 2009 |
| THE Original Employee Benefit Trustee Limited | Professional & scientific | 2021 |
| THE Period & Listed Retrofit Academy Ltd | Professional & scientific | 2020 |
| THE Pirate Coffee Company Ltd | Manufacturing | 2023 |
| THE Pocket (a Climbing Gym) Ltd | Arts & recreation | 2024 |
| THE Poplars Combe Martin Limited | Hospitality | 2021 |
| THE Print Edge Ltd | Manufacturing | 2012 |
| THE Priory Management (Westward HO) Company Limited | Households | 2001 |
| THE Proper Van Company Ltd | Wholesale & retail | 2025 |
| THE Remote Camera Company Limited | Information & communication | 2022 |
| THE Resurgence Trust | Information & communication | 2006 |
| THE Sensory Hub Ltd | Education | 2026 |
| THE Sheep Show LLP | | 2025 |
| THE Solid Strike Arena Ltd | Arts & recreation | 2024 |
| THE Static Caravan Consultants Ltd | Professional & scientific | 2020 |
| THE Storkey Training Academy Ltd | Other services | 2023 |
| THE Suite Bath Ltd | Other services | 2017 |
| THE Teign Management Company NO.1 Limited | Households | 1992 |
| THE Thatched Inn (Abbotsham) Ltd | Hospitality | 2019 |
| THE Travel Chapter Group Limited | Extraterritorial | 2011 |
| THE Travel Chapter Limited | Administrative & support | 1989 |
| THE Ultimate Fish Company Limited | Hospitality | 2019 |
| THE Vicarage (2008) Limited | Health & social care | 2009 |
| THE White House (Torrington) Management Co. Limited | Households | 1988 |
| THE White Room (Devon) Limited | Wholesale & retail | 2021 |
| Thermoplan Limited | Extraterritorial | 2016 |
| Things Other Publishing Ltd | Information & communication | 2024 |
| This IS Iris Ltd | Administrative & support | 2014 |
| Thornery Property Ltd | Real estate | 2024 |
| Time 2 Care (South West) Ltd | Other services | 2013 |
| Time and Tide Media Ltd | Information & communication | 2023 |
| Timothy & Birch Ltd | Wholesale & retail | 2022 |
| TJ Access & Rescue Solutions Ltd | Professional & scientific | 2026 |