| Company | Timeline | Status | |
| Prgco Limited Director • Unreported | 31 Mar 2020←5 Years→Current | Active | |
| Premier Research International Us Limited Director • Unreported | 31 Mar 2020←5 Years→Current | Active | |
| Premier Research Germany Limited Director • Unreported | 31 Mar 2020←5 Years→Current | Active | |
| Premier Research Group Limited Director • Unreported | 31 Mar 2020←5 Years→Current | Active | |
