| Wesag LLP | | 2010 |
| Wessex Agronomy Limited | Wholesale & retail | 2003 |
| West Country Grounds Maintenance Ltd | Administrative & support | 2017 |
| West Devon Business Information Point Limited | Administrative & support | 1995 |
| West Devon Community and Voluntary Services | Other services | 2007 |
| West Devon Developments Ltd | Construction | 2022 |
| Westbound Group Ltd | Professional & scientific | 2026 |
| Westloaf Limited | Manufacturing | 2024 |
| Westwood (South West) Limited | Construction | 2014 |
| Westworld Design LLP | | 2005 |
| WFS Property Investments Limited | Real estate | 2022 |
| WG Partners Capital Limited | Professional & scientific | 2019 |
| WG Partners LLP | | 2011 |
| Whinfell Services Ltd | Transport & logistics | 2026 |
| White Knight Music Publishing Limited | Other services | 1980 |
| White Star Heritage Ltd | Administrative & support | 2021 |
| White Wood Management & Associates Limited | Agriculture & fishing | 2018 |
| Whitehouse Adaptations Limited | Construction | 2025 |
| Wicked Exotics Limited | Agriculture & fishing | 2025 |
| Wild Brook Limited | Manufacturing | 2023 |
| William Steele Ltd | Professional & scientific | 1999 |
| Willowax Ltd | Manufacturing | 2020 |
| Wired Consultancy Limited | Information & communication | 2011 |
| Wonderstruck Ltd | Education | 2008 |
| Wongs 168 Ltd | Hospitality | 2023 |
| Woodland Instead Stewardship CIC | Agriculture & fishing | 2026 |
| Wren Music | Arts & recreation | 2008 |
| WSD Property Ltd | Real estate | 2022 |
| WSM Developments Limited | Real estate | 2020 |
| WSM Property Group Limited | Real estate | 2021 |
| WSM Property Management Limited | Real estate | 2020 |
| XR Productions Ltd | Information & communication | 2023 |
| Xrsha Records Ltd | Information & communication | 2023 |
| YES Touring Limited | Arts & recreation | 2022 |
| Yolk Street Ltd | Hospitality | 2025 |
| YOU Learning Centre CIC | Education | 2025 |
| Your Golf Marketing Limited | Professional & scientific | 2024 |
| Zamora Health and Beauty Limited | Health & social care | 2007 |