| 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 • Unreported  | 1 Jan 1970←55 Years→Current  | Active  | |
