| Tregonebris Trading Limited | Manufacturing | 2011 |
| Tregower Optical Ltd | Professional & scientific | 2025 |
| Tregowris Court Residents Management Company Ltd | Households | 2002 |
| Treleague Dairy Ltd | Manufacturing | 2015 |
| Trelowarren Estate Ltd | Real estate | 2000 |
| Treloweth Concepts Limited | Construction | 2012 |
| Tremaine Holdings Limited | Financial services | 2025 |
| Tremorvu Holidays Ltd | Hospitality | 2020 |
| Trenance Ltd | Manufacturing | 2002 |
| Trevelyan Holdings Ltd | Wholesale & retail | 2025 |
| Trevissome Park Phase 4 Limited | Real estate | 2023 |
| Trevow Helston CIC | Health & social care | 2024 |
| Trewennack Limited | Administrative & support | 2023 |
| Tribe of Maya Ltd | Wholesale & retail | 2025 |
| True Blue Signs LP | | 2019 |
| TSO Imaging Ltd | Information & communication | 2013 |
| TSO Ventures (SW) Ltd | Information & communication | 2019 |
| Tucker Car Hire Ltd | Administrative & support | 2019 |
| Twin Detailing Ltd | Administrative & support | 2024 |
| Tyac Ltd | Hospitality | 2025 |
| TYM Property Limited | Real estate | 2024 |
| Tyrefinders Limited | Wholesale & retail | 2015 |
| Tyson Utilities Limited | Construction | 2010 |
| UK Radon Limited | Professional & scientific | 2011 |
| Underhill PHR Limited | Construction | 2024 |
| Unicus Global Limited | Professional & scientific | 2024 |
| Unmasking Nutrition Ltd | Health & social care | 2025 |
| Urban Gypset Limited | Wholesale & retail | 2015 |
| V.T.I. Consultancy Limited | Information & communication | 2009 |
| Van DER Endt Limited | Real estate | 2006 |
| Varga Pharm Ltd | Wholesale & retail | 2023 |
| Vavoom Ltd | Administrative & support | 2010 |
| Verdant Publishing Ltd | Information & communication | 2024 |
| Veritron Ltd | Information & communication | 2025 |
| VHQ Helston Ltd | Wholesale & retail | 2015 |
| Vickys Bread Limited | Wholesale & retail | 2024 |
| Viewpoint Solutions (SW) Limited | Professional & scientific | 2015 |
| Vincent Assets Limited | Financial services | 2022 |
| Vipco Ltd | Information & communication | 2025 |
| Vounder Solutions Limited | Information & communication | 2012 |
| W.C. Matthews & SON Limited | Construction | 2010 |
| Waggin' Good Times Limited | Other services | 2017 |
| Waji Cornwall Limited | Agriculture & fishing | 2025 |
| Walsh Newton Limited | Construction | 2005 |
| Warrens Bakery Franchise Limited | Administrative & support | 2016 |
| Warrens Bakery Limited | Wholesale & retail | 1979 |
| Warrens Bakery Travel (Basingstoke) Limited | Extraterritorial | 2015 |
| Warrens Bakery Travel (Bath Spa) Limited | Extraterritorial | 2015 |
| Warrens Bakery Travel (Cardiff) Limited | Real estate | 2023 |
| Warrens Bakery Travel (Liverpool Street) Limited | Real estate | 2025 |
| Warrens Bakery Travel (Slough ) Limited | Hospitality | 2024 |
| Warrior Installations (SW) Limited | Construction | 2011 |
| Warwick Plumbing & Heating Ltd | Construction | 2021 |
| Water MA Trout Garage Limited | Extraterritorial | 2026 |
| WDP Associates Ltd | Construction | 2020 |
| Welloe Rock Limited | Real estate | 2017 |
| Wells Renovations Ltd | Construction | 2011 |
| Wendron Stoves Limited | Wholesale & retail | 2018 |
| West Seton Livery Ltd | Arts & recreation | 2011 |
| Westcountry Slate Supplies Ltd | Wholesale & retail | 2009 |
| Western Maintenance (IOS) Ltd | Administrative & support | 2012 |
| Westley Garage Helston Limited | Wholesale & retail | 2017 |
| Westlink Design Limited | Professional & scientific | 2015 |
| Wheal Dream Limited | Hospitality | 2010 |
| Wheal Georgia Management Company Limited | Real estate | 2023 |
| Whirlwind Sports Community CIC | Education | 2017 |
| White FOX Construction Limited | Construction | 2019 |
| White Towans Ltd | Professional & scientific | 2012 |
| Wholeship Limited | Professional & scientific | 2016 |
| Wibberley Renovations Ltd | Construction | 2026 |
| Wigwag Group Ltd | Wholesale & retail | 2024 |
| Wild Edges Tallow Ltd | Wholesale & retail | 2025 |
| Wildlife Groundswell CIC | Professional & scientific | 2023 |
| Williams & Rose Developments Limited | Construction | 2012 |
| Williams Brothers Building Contractors Ltd | Construction | 2021 |
| Willows Mews (Helston) Limited | Real estate | 2010 |
| Wind Farm Aviation Safeguarding Ltd | Professional & scientific | 2022 |
| WK Electrical (Cornwall) Limited | Construction | 2012 |
| Woodburners & Fires Southwest Ltd | Construction | 2024 |
| Words and Ideas UN Limited | Professional & scientific | 2023 |
| Wormington & Co Limited | Professional & scientific | 2024 |
| Wrecked Point Ltd | Hospitality | 2021 |
| WS Commercial Properties Limited | Real estate | 2007 |
| WT Flockhart Limited | Construction | 2002 |
| Yellow Hammer Media Group Limited | Professional & scientific | 2023 |
| Young & Co Building Contractors Limited | Construction | 2025 |
| Youth Cafes Cornwall CIC | Education | 2013 |
| Zappsy Ltd | Information & communication | 2026 |
| Zelda School | Education | 2007 |
| Zoar Garages Limited | Wholesale & retail | 2003 |