| Company | Timeline | Status | |
| Porphyrogenitus Limited Secretary • Associate Director Informatics | 18 Oct 2008←17 Years→Current | Active | |
Scientific Data Solutions Limited Director • Company Director | 11 Apr 1997←16 Years→7 Jan 2014 | Dissolved | |
| Porphyrogenitus Limited Director • Consultant | 30 May 1991←34 Years→Current | Active | |
