| THE Meadow ST Merryn Management Ltd | Households | 2021 |
| THE Mowhay Coffee Shop Ltd | Hospitality | 2021 |
| THE Old Coachworks Management Company Limited | Households | 2024 |
| THE Pets Larder Ltd | Wholesale & retail | 2023 |
| THE Poppies Management (NO 1) Limited | Hospitality | 1989 |
| THE Port Isaac Pantry Ltd | Wholesale & retail | 2026 |
| THE Poultry Patch Limited | Agriculture & fishing | 2014 |
| THE Red Lion Inn ST KEW Highway Ltd | Hospitality | 2025 |
| THE Red Lion Madley Limited | Hospitality | 2026 |
| THE Southwest Fermentorium Limited | Manufacturing | 2019 |
| THE Stable Cornwall Limited | Other services | 2021 |
| THE Tannery Grampound Management Company Limited | Households | 2011 |
| THE Walker Lines Gymnasium | Arts & recreation | 2012 |
| THE White Fang Group Ltd | Financial services | 2021 |
| THE Wool Company Limited | Wholesale & retail | 2017 |
| The-Pleasure-Dome.Co.Uk Limited | Wholesale & retail | 2017 |
| Theraflex Physio Ltd | Manufacturing | 2018 |
| Thermofoam Projects Limited | Construction | 2024 |
| Thermoholdings Limited | Professional & scientific | 2017 |
| Thirstland Limited | Administrative & support | 2020 |
| Thomas & Sons Motor Company Ltd | Wholesale & retail | 2025 |
| Thomas Barriball Construction Ltd | Construction | 2021 |
| Thor Motorcycles Limited | Wholesale & retail | 2006 |
| Thorn and Willow Limited | Manufacturing | 2020 |
| Thunder Park Airsoft Ltd | Arts & recreation | 2024 |
| Tiantu Intl Freight Service Ltd | Transport & logistics | 2020 |
| TIM Salzman Associates Limited | Health & social care | 2008 |
| Toadies Property Rental Ltd | Real estate | 2025 |
| Toastie Developments Limited | Construction | 2024 |
| Tolcarne Road Flat Management Company Limited | Households | 2008 |
| TOM Mills Construction Limited | Construction | 2025 |
| TOM SIX Ltd | Hospitality | 2018 |
| Top HAT Records Limited | Wholesale & retail | 2018 |
| Track Properties Limited | Transport & logistics | 1997 |
| Treat Yourself Better Limited | Manufacturing | 2019 |
| Trebur Estates Limited | Construction | 1994 |
| Tredethy Mews Limited | Households | 2004 |
| Tree by Tree CIC | Agriculture & fishing | 2021 |
| Tregarden Manor Ltd | Hospitality | 2025 |
| Tregawne Cottages Limited | Households | 2020 |
| Trekeek Limited | Health & social care | 2014 |
| Tremeere Construction Ltd | Construction | 2024 |
| Tremeere Manor Luxury Stays Ltd | Hospitality | 2026 |
| Tremore Dairy Limited | Wholesale & retail | 2024 |
| Treore Dairy Limited | Agriculture & fishing | 2002 |
| Tresahar Gardens NO 1 Management Company Limited | Households | 2014 |
| Trevanion Court Management Company Limited | Households | 1984 |
| Trevibban Barton Management Company Limited | Households | 2001 |
| Treworgan Management Company Limited | Real estate | 2011 |
| Tricks Ltd | Arts & recreation | 2021 |
| Trinity Electronics Limited | Manufacturing | 2006 |
| Trinity Warehousing Ltd. | Transport & logistics | 2001 |
| Trinity Workshops Ltd. | Professional & scientific | 2004 |
| Trinity Worx Ltd | Professional & scientific | 2021 |
| Trisha Hewitt Communications Limited | Professional & scientific | 2018 |
| Troygrove Limited | Real estate | 1989 |
| Truro Wharfage Limited | Information & communication | 1987 |
| TSP Motor Engineering Ltd | Wholesale & retail | 2023 |
| Turner Financial Services South West Ltd | Financial services | 2010 |
| Turquoise Kebab Shop Ltd | Hospitality | 2024 |
| Two Disciples Ltd | Wholesale & retail | 2025 |
| UK TCC Ltd | Wholesale & retail | 2025 |
| UMI Consulting Ltd | Education | 2023 |
| Under African Skies Ltd | Information & communication | 2022 |
| Untangle - Creative Movement Collective C.I.C. | Health & social care | 2024 |
| Valetworx Ltd | Wholesale & retail | 2015 |
| Vangohire Ltd | Administrative & support | 2026 |
| Vicstars Travel Ltd | Administrative & support | 2025 |
| Victoria Parc (Bodmin) Management Company Limited | Real estate | 2003 |
| Vincent George Ltd | Construction | 2025 |
| Viraj Fusion Limited | Hospitality | 2022 |
| Vtec Group Limited | Professional & scientific | 2016 |
| Vulcana-Vigor Ltd | Arts & recreation | 2023 |
| WA South West Limited | Professional & scientific | 2021 |
| Wadebridge Cattle Market Limited | Real estate | 1911 |
| Waite Developments Limited | Construction | 2023 |
| Walker Lines Propco Limited | Financial services | 2026 |
| Walker Lines Steel Limited | Wholesale & retail | 2015 |
| Water Academy Limited | Education | 2020 |
| Waterside Cornwall Fisheries Ltd | Arts & recreation | 2022 |
| Wavepattern Ltd | Manufacturing | 2013 |
| WE ARE Tonia Ltd | Professional & scientific | 2021 |
| Webbe UK Ltd | Administrative & support | 2021 |
| Webmate Internet Services Limited | Information & communication | 2015 |
| West END Motors(Bodmin)Limited | Wholesale & retail | 1963 |
| Westcott Management Company Limited | Households | 1995 |
| Westcountry Plant Hire & Sales Ltd | Administrative & support | 2017 |
| Western Homes Limited | Construction | 2025 |
| Western Range Distribution Ltd | Construction | 2017 |
| Westheath Care Homes (Staffing) Ltd | Administrative & support | 2011 |
| Westheath Care Homes Ltd | Health & social care | 2014 |
| Westward Electrical Limited | Construction | 2021 |
| Wharf House Penzance Management Company Ltd | Real estate | 2017 |
| Wheal Rose Management Company Limited | Households | 2014 |
| Wheelbarrow Gardening Limited | Administrative & support | 2010 |
| Wheelbarrow Landscapes Ltd | Administrative & support | 2022 |
| When's My MOT Ltd | Wholesale & retail | 2018 |
| White Witch Games Ltd | Information & communication | 2020 |
| Whitehouse Edwards Ltd | Professional & scientific | 2025 |
| Wildlife Explorer (E a) Limited | Administrative & support | 1991 |