| Tibbo Properties Ltd | Construction | 2024 |
| Tidal Turbines Ltd | Construction | 2022 |
| Tidwell Farm Holiday Rentals Ltd | Hospitality | 2020 |
| Tile Solutions UK Ltd | Construction | 2020 |
| TIM Hunter Structural Engineering Ltd | Professional & scientific | 2025 |
| Timeless Change Limited | Information & communication | 2008 |
| Tipler Comics Ltd | Wholesale & retail | 2025 |
| TL Property Advisory Ltd | Professional & scientific | 2026 |
| Toby Lidstone Photography Ltd | Professional & scientific | 2024 |
| TOM Gordon Design Limited | Arts & recreation | 2011 |
| TOM Sawyer Contractors Ltd | Construction | 2026 |
| Tomas P Lorenzo Ltd | Health & social care | 2011 |
| Tomlinson Solutions Ltd | Information & communication | 2014 |
| Tomlinson Trees Contractors Limited | Agriculture & fishing | 2018 |
| Tomlinson Web Solutions Ltd | Information & communication | 2025 |
| Tonic Creatives CIC | Education | 2021 |
| Top Cabs Torbay Limited | Transport & logistics | 2020 |
| Top Catch Limited | Wholesale & retail | 2001 |
| Torbay Accounting & Consultancy Ltd | Professional & scientific | 2014 |
| Torbay Advice Network | Other services | 2006 |
| Torbay Area Indoor Bowling Association Limited(The) | Arts & recreation | 1974 |
| Torbay Asian Food Limited | Wholesale & retail | 2020 |
| Torbay Boilers Ltd | Construction | 2025 |
| Torbay Clearance Services Limited | Other services | 2011 |
| Torbay Commercials Ltd | Wholesale & retail | 2022 |
| Torbay Community Solutions CIC | Health & social care | 2024 |
| Torbay Cosy Homes Ltd | Real estate | 2022 |
| Torbay Driving Range (2011) Limited | Arts & recreation | 2011 |
| Torbay Fruit Sales Ltd | Wholesale & retail | 2019 |
| Torbay Furniture Project CIC | Wholesale & retail | 2023 |
| Torbay Guesthouse Ltd | Hospitality | 2024 |
| Torbay Harbour Ltd | Wholesale & retail | 2025 |
| Torbay Home Care & Live-In Care Ltd | Health & social care | 2026 |
| Torbay Home Help Limited | Administrative & support | 2019 |
| Torbay International Pool League Limited | Arts & recreation | 2025 |
| Torbay Janitorial Services Limited | Other services | 2018 |
| Torbay Lead Generation Limited | Administrative & support | 2016 |
| Torbay Lettings Ltd | Real estate | 2024 |
| Torbay Lifestyle Centre Limited | Arts & recreation | 2003 |
| Torbay Mailing Services Limited | Transport & logistics | 1990 |
| Torbay Mart Ltd | Wholesale & retail | 2026 |
| Torbay MX Ltd | Wholesale & retail | 2019 |
| Torbay Pharmaceuticals Limited | Manufacturing | 2023 |
| Torbay Powder Coats Ltd | Manufacturing | 2024 |
| Torbay Properties Ltd | Real estate | 2022 |
| Torbay Property Finder & Management Ltd | Real estate | 2021 |
| Torbay PV Charters Ltd | Financial services | 2023 |
| Torbay Residential Limited | Real estate | 2021 |
| Torbay Showground Ltd | Administrative & support | 2025 |
| Torbay Steel Limited | Manufacturing | 2014 |
| Torbay Technology Ltd | Professional & scientific | 2003 |
| Torbay Techtronics Limited | Construction | 2006 |
| Torbay Thermal Insulation Limited | Construction | 2008 |
| Torbay Upholstery Ltd | Extraterritorial | 2024 |
| Torbay-Tcg Limited | Wholesale & retail | 2026 |
| Torland Services Limited | Hospitality | 2025 |
| Tormartin Limited | Professional & scientific | 2010 |
| Torquay Bathrooms Limited | Construction | 2024 |
| Torquay Land Train Limited | Transport & logistics | 2010 |
| Torquay Ltd | Financial services | 2018 |
| Torre Partnerships Limited | Real estate | 2010 |
| Torwest Ltd | Manufacturing | 2020 |
| Torwood Court Limited | Real estate | 2001 |
| Total Control Management Limited | Professional & scientific | 1996 |
| Total Heat (SW) Limited | Construction | 2022 |
| Total Security (Plymouth) Limited | Professional & scientific | 2007 |
| Total Services 2000 Limited | Construction | 1998 |
| Totnes Old Mill Limited | Extraterritorial | 2017 |
| Totnes Road Property Management Limited | Households | 2006 |
| Totnes Station Taxis Ltd | Transport & logistics | 2023 |
| Totnes Taxis Limited | Transport & logistics | 2014 |
| Tower Consulting Group Ltd | Professional & scientific | 2019 |
| TQ Design Limited | Extraterritorial | 2024 |
| TQ3 Publishing Ltd | Information & communication | 2013 |
| Traditional Country Inns Ltd | Hospitality | 2014 |
| Trakko's Toy World Ltd | Wholesale & retail | 2018 |
| Transform Building Solutions Limited | Construction | 2019 |
| Transportant Associates Limited | Administrative & support | 1995 |
| Treasure Earth C.I.C. | Other services | 2018 |
| Tres Vibes Ltd | Wholesale & retail | 2025 |
| Trialzoom Limited | Information & communication | 1981 |
| Tribal Voice Limited | Wholesale & retail | 2012 |
| Trident Fish Sales Limited | Wholesale & retail | 2014 |
| Trim and Tonic Ltd | Other services | 2022 |
| Trimology Paignton Ltd | Other services | 2026 |
| Tristan Forsey Ltd | Construction | 2015 |
| TRM Projects Limited | Construction | 2021 |
| Truck Sales and Exports SW Ltd | Wholesale & retail | 2026 |
| Trusted Assessing and Care Training Ltd | Education | 2022 |
| Tucker Buildings Limited | Construction | 2001 |
| Tudor Hotels Collection Ltd | Construction | 2014 |
| Turning Worm Enterprises Limited | Professional & scientific | 2008 |
| TWH Property Ltd | Hospitality | 2021 |
| Twig Properties Ltd | Real estate | 2022 |
| Twin Tide Estates Ltd | Real estate | 2026 |
| Two Sisters Lettings and Property Management Ltd | Real estate | 2023 |
| Twoquay Escapes Ltd | Hospitality | 2019 |
| Txbs Properties Limited | Real estate | 2023 |
| Tyres 4 Wholesale UK Ltd | Wholesale & retail | 2024 |
| Uicomms Ltd | Other services | 2025 |