| Company | Timeline | Status | |
| Stretton Scientific Limited Director • Director | 14 Oct 2010←15 Years→Current | Active | |
| Highstairs Property Limited Director • Director | 13 Oct 2010←10 Years→30 Mar 2021 | Active | |
| Cepheid UK Limited Director • Scientist | 22 Apr 2002←8 Years→1 Oct 2010 | Active | |
| Butterfield Properties Limited Director • Cytogeneticist | 30 Jun 1997←28 Years→Current | Active | |
