| Tony Benger Landscaping Limited | Administrative & support | 2000 |
| Tony Hyland Psychic Services Limited | Information & communication | 2014 |
| Topline Glass & Glazing Limited | Manufacturing | 2000 |
| Total Renewable Solutions South West Limited | Construction | 2012 |
| Tradelink of Devon Limited | Wholesale & retail | 2015 |
| Trademailer Ltd | Construction | 2024 |
| Traill Partners Limited | Professional & scientific | 2003 |
| Training Transformation Consultancy Limited | Professional & scientific | 2025 |
| Trakrite Services UK Ltd | Agriculture & fishing | 2018 |
| Transcend Events Ltd | Other services | 2018 |
| Transcend Marketing Ltd | Professional & scientific | 2014 |
| Truemanos Ltd | Hospitality | 2025 |
| TSD Logistics Ltd | Professional & scientific | 2011 |
| Tube Technologies Ltd | Manufacturing | 2025 |
| Tuckett Productions Limited | Extraterritorial | 2022 |
| Tukxi Limited | Wholesale & retail | 2014 |
| Turner Build Ltd | Construction | 2012 |
| Twickenham Tunes Limited | Information & communication | 1978 |
| Two Women Ltd | Arts & recreation | 2022 |
| Tytherleigh Arms Ltd | Hospitality | 2011 |
| Tytherleigh Court Management Limited | Real estate | 2004 |
| Tytherleigh Homes Ltd | Construction | 2008 |
| Uncle Leo's Ltd | Wholesale & retail | 2015 |
| Uplyme Stores Ltd | Wholesale & retail | 2021 |
| Vale Lane 1973 Limited | Extraterritorial | 2015 |
| Valhalla Invest Limited | Construction | 2016 |
| Vanilla Mortgages Limited | Financial services | 2023 |
| Vault Holdings Ltd | Financial services | 2025 |
| Verity Productions Limited | Arts & recreation | 2012 |
| Victorian and Doomsday Mills Limited | Households | 2002 |
| Victpharma Ltd | Wholesale & retail | 2022 |
| Vinilo Record Store Ltd | Wholesale & retail | 2016 |
| Vinilo Vintage Ltd | Wholesale & retail | 2022 |
| Vinyl Village Ltd | Manufacturing | 2018 |
| VON Donhoff Ltd | Professional & scientific | 2013 |
| Vortic Industries Ltd | Wholesale & retail | 2019 |
| W E Phillips & Sons Ltd | Construction | 2010 |
| W L Joinery Limited | Manufacturing | 2023 |
| W3LLS Property Ltd | Real estate | 2023 |
| Wagon UK Automotive Events Ltd | Wholesale & retail | 2020 |
| Wanderwell Safeguarding Consultants Ltd | Professional & scientific | 2015 |
| Waterwise Engineering Ltd | Water & waste | 1996 |
| Wells Carpet Brokers Limited | Wholesale & retail | 2003 |
| Wessex Energy Solutions Limited | Administrative & support | 2013 |
| West Country Blacksmithing Ltd | Manufacturing | 2014 |
| Westcrete Precast Concrete Limited | Manufacturing | 1978 |
| Western Bookshops Ltd | Wholesale & retail | 2020 |
| Western Tree Services (Commercial) Limited | Agriculture & fishing | 2003 |
| Weston Green Holdings Ltd | Real estate | 2018 |
| Westwater Developments Ltd | Construction | 2025 |
| Weycroft Mill Management Limited | Households | 2002 |
| Whatley Investments Limited | Construction | 2014 |
| Wheeler Bailey and Company Limited | Administrative & support | 2006 |
| Whitewater Property Services Ltd | Construction | 2015 |
| Wickfield Services Ltd | Construction | 2016 |
| Widworthy Commercials (SW) Ltd | Wholesale & retail | 2013 |
| WIL Mayers Construction Limited | Construction | 2002 |
| Wild & Roam Ltd | Wholesale & retail | 2025 |
| Wild Roots Childcare Ltd | Health & social care | 2024 |
| Wilkinson Electrical Services Limited | Wholesale & retail | 2008 |
| Wilmott Limited | Professional & scientific | 2006 |
| Wonderful Wellness World Ltd | Health & social care | 2026 |
| Woodscott Joinery Ltd | Manufacturing | 2013 |
| Woodson Property Renovations Ltd | Construction | 2021 |
| Worklight Theatre Ltd | Arts & recreation | 2026 |
| World Extreme Medicine Limited | Health & social care | 2002 |
| Wozlett Properties Ltd | Real estate | 2018 |
| WSM Estate Agents Limited | Real estate | 2012 |
| Yarty Party Ltd | Other services | 2016 |
| Yeomans Boats Ltd | Agriculture & fishing | 2013 |
| Yonder Hill Amenity Limited | Professional & scientific | 2016 |
| Yuwan&Cocoy Ltd | Manufacturing | 2025 |
| ZEN Fundraising Limited | Other services | 2018 |
| Zorea Vending Ltd | Wholesale & retail | 2025 |
| Zumas BON BON Limited | Other services | 2025 |