| Company | Timeline | Status | |
| E. Roxburgh Ltd Director • Architect | 30 Nov 2009←15 Years→Current | Active | |
| Roxburgh Developments Ltd Director • Director | 9 Mar 2009←16 Years→Current | Active | |
| Roxburgh Developments Ltd Secretary • Architect | 4 Oct 2007←18 Years→Current | Active | |
| E. Roxburgh Ltd Secretary • Architect | 1 Oct 2007←18 Years→Current | Active | |
