| Company | Timeline | Status | |
| Breakthrough Breast Cancer Director • University Professor | 27 Sep 2012←2 Years 6 Months→31 Mar 2015 | Active | |
| Medical Screening Society Director • Medical Practitioner | 15 Apr 2003←22 Years→Current | Active | |
| Medical Screening Society Secretary • Medical Practitioner | 15 Apr 2003←22 Years→Current | Active | |
| Polypill Limited Director • Epidemiologist | 26 Nov 2001←23 Years→Current | Active | |
| The Lullaby Trust Limited Director • Doctor | 20 Mar 2001←5 Years→13 Mar 2007 | Active | |
| Intema Limited Director • Epidemiologist | 13 Nov 2000←20 Years→19 May 2021 | Dissolved | |
| Intema Limited Secretary • Epidemiologist | 13 Nov 2000←20 Years→19 May 2021 | Dissolved | |
| Logical Medical Systems Limited Director • Epidemiologist | 27 Jul 1991←34 Years→Current | Active | |
| Logical Medical Systems Limited Secretary • Unreported | 27 Jul 1991←34 Years→Current | Active | |
