| Company | Timeline | Status | |
| The Newnham Club Room Director • Retired | 9 Jan 2019←6 Years→Current | Active | |
| The Newnham Club Room Director • Retired | 9 Jan 2019←5 Years→1 Aug 2024 | Active | |
| Solar Century Holdings Limited Director • Consultant | 26 Apr 1999←4 Years→17 Dec 2003 | Active | |
| Iqe (Europe) Limited Director • Chemical Engineer | 26 Oct 1992←4 Months→1 Mar 1993 | Active | |
