| Company | Timeline | Status | |
| Science Photo Books Limited Director • Unreported | 1 Dec 2021←3 Years→Current | Active | |
| 1 Sunderland Terrace Limited Secretary • Researcher | 21 Aug 1996←29 Years→Current | Active | |
| 1 Sunderland Terrace Limited Director • Unreported | 21 Aug 1996←29 Years→Current | Active | |
| Science Photo Library Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
