| Trewcare Limited | Health & social care | 1996 |
| Trillium Property Ltd | Real estate | 2023 |
| Triple P Engineering Ltd | Professional & scientific | 2019 |
| Tripp Removals & Storage Limited | Transport & logistics | 2015 |
| Trjz 112 Limited | Hospitality | 2025 |
| Trpcm Limited | Hospitality | 2023 |
| True Butterflies Ltd | Health & social care | 2017 |
| Trulysmile Ltd | Health & social care | 2025 |
| Truro Physiotherapy Limited | Public administration | 2014 |
| TS Lord Nelson Limited | Education | 2025 |
| Tshc (the Smart Home Company) Ltd | Information & communication | 2016 |
| Tubix Ltd | Construction | 2026 |
| Tudor Rose Protection Ltd | Administrative & support | 2023 |
| TUF Products Ltd | Manufacturing | 2021 |
| Tugdock Submersible Platforms Limited | Transport & logistics | 2025 |
| Tunes Festivals Ltd | Arts & recreation | 2024 |
| Tunes in the Dunes Limited | Arts & recreation | 2014 |
| Turbo Diggers Limited | Construction | 2018 |
| Turn to Starboard | Other services | 2014 |
| Turton Catering Limited | Hospitality | 2010 |
| Tutwork Limited | Professional & scientific | 2025 |
| Tyringham & Co Limited | Real estate | 2025 |
| UA Assets & Capital Ltd | Administrative & support | 2023 |
| UK Leadtech Ltd | Financial services | 2012 |
| Ukrainian Soul Ltd | Hospitality | 2022 |
| Ungraded Ltd | Wholesale & retail | 2023 |
| Unique Seating Ltd | Manufacturing | 2024 |
| Update Aesthetics Limited | Health & social care | 2020 |
| Update Property South West Ltd | Real estate | 2024 |
| Upekkha Limited | Hospitality | 2022 |
| Urbanomic Media Ltd | Information & communication | 2014 |
| Valley Management Cornwall Limited | Administrative & support | 2020 |
| Venn Creative Limited | Professional & scientific | 2009 |
| Vernon Place Management Limited | Households | 1991 |
| Versatile Commerce Limited | Information & communication | 2017 |
| Viaduct Ltd | Professional & scientific | 2013 |
| Vice Grip Ltd | Arts & recreation | 2013 |
| Videotext Communications Limited | Information & communication | 1995 |
| View NOW Ltd | Information & communication | 2022 |
| Vinery Meadow Management Limited | Households | 2010 |
| Vision Independent Financial Planning Ltd | Financial services | 2008 |
| Vision Money Commercial Ltd | Financial services | 2022 |
| Vision Money Ltd | Financial services | 2010 |
| Vital Media Group Limited | Information & communication | 2026 |
| Volt Works Cornwall Ltd | Construction | 2026 |
| Voyse Limited | Administrative & support | 2013 |
| W.C. Rowe (Falmouth) Limited | Manufacturing | 1975 |
| Wadebridge Storage Limited | Other services | 2020 |
| Wake & SKI Ltd | Arts & recreation | 2024 |
| Wandering Brittain Ltd | Hospitality | 2025 |
| Warblium Studios Ltd | Information & communication | 2025 |
| Warren Golf Club Limited | Education | 2021 |
| Water & GAS Services - Cornwall Ltd | Construction | 2016 |
| Waters Consulting Limited | Professional & scientific | 2016 |
| Waters Marine Ltd | Manufacturing | 2019 |
| Waterside Kernow Limited | Hospitality | 2024 |
| Watson and the Warren Ltd | Hospitality | 2026 |
| Watson Ventures Ltd | Other services | 2024 |
| Watson-Marlow Limited | Manufacturing | 1990 |
| Watt Electrical (SW) Ltd | Construction | 2023 |
| WE Believe 2 CIC | Education | 2024 |
| Wealden Homes Limited | Real estate | 1970 |
| Wendy Titman Associates Limited | Education | 1998 |
| West Country Developments Limited | Construction | 2005 |
| West Leisure Limited | Hospitality | 2003 |
| Westcott Falmouth Limited | Hospitality | 2018 |
| Westcountry Woodworking Machinery Limited | Wholesale & retail | 2004 |
| Westwall Electrical Limited | Construction | 2000 |
| Wheal Silver Property Management Company Limited | Real estate | 2000 |
| Wheel of Merit CIC | Other services | 2022 |
| Wheeler Electrical Services Falmouth Ltd | Construction | 2019 |
| White Groundworks Limited | Construction | 2011 |
| White Noise Coffee Roasters Ltd | Manufacturing | 2025 |
| Whitts Stanley Limited | Financial services | 2003 |
| Wild Agri Ltd | Agriculture & fishing | 2013 |
| Wild Ideas & Co. Ltd | Wholesale & retail | 2023 |
| Wild Pony Falmouth Ltd | Wholesale & retail | 2019 |
| Wildnosh Ltd. | Manufacturing | 2018 |
| Will Kemp Ltd | Information & communication | 2020 |
| Willington Asset Management Limited | Real estate | 2023 |
| Willow and Stone Ltd | Wholesale & retail | 2009 |
| Wilshaw Dental Laboratory Ltd | Manufacturing | 2006 |
| Windsport International Limited | Wholesale & retail | 1995 |
| Windwards Close Ltd | Households | 2019 |
| Winfreys Property Limited | Real estate | 2021 |
| Wing Cheung Food Limited | Hospitality | 2019 |
| WJ Properties Cornwall Ltd | Real estate | 2025 |
| Wodan Paint Solutions Ltd | Construction | 2025 |
| Wolsrap Limited | Wholesale & retail | 2015 |
| Women in Mining | Other services | 2007 |
| Wonky Cat Press Ltd | Information & communication | 2024 |
| Woodstock Skitz Limited | Other services | 1996 |
| Woolf Dens Ltd | Hospitality | 2025 |
| Workboat Wise Ltd | Manufacturing | 2023 |
| WPS Cornwall Limited | Construction | 2010 |
| Write Lines Media Limited | Information & communication | 2013 |
| X for WHY Ltd | Information & communication | 2020 |
| XPL RD Ltd | Hospitality | 2025 |
| Xpress Garage & Tyres Ltd | Wholesale & retail | 2019 |
| Xpress Garage Falmouth Ltd | Wholesale & retail | 2023 |