| Company | Timeline | Status | |
| Trewithen Energy Limited Director • Director | 7 Nov 2014←10 Years→Current | Active | |
| Great Gardens Of Cornwall Limited Director • Director | 19 Apr 2006←19 Years→Current | Active | |
| Great Gardens Of Cornwall Limited Secretary • Director | 19 Apr 2006←19 Years→Current | Active | |
| Trewithen Farms Limited Director • Chartered Surveyor | 21 Apr 2005←20 Years→Current | Active | |
| Trewithen Farms Limited Secretary • Chartered Surveyor | 21 Apr 2005←20 Years→Current | Active | |
| Trewithen Estate Limited Director • Chartered Surveyor | 29 Jan 1999←26 Years→Current | Active | |
| Probus Garden Estate Limited Director • Chartered Surveyor | 29 Jan 1999←26 Years→Current | Active | |
Stratton & Holborow Limited Director • Director | 11 Mar 1998←13 Years→5 May 2011 | Dissolved | |
