| Company | Timeline | Status | |
| Magsurvey Limited Director • Director | 3 Nov 2002←3 Years→8 Jul 2006 | Dissolved | |
| Spectra-Map Limited Director • Geologist | 3 Apr 2000←21 Years→19 Jul 2021 | Active | |
Fugro Limited Director • Geophysical Consultant | 4 Mar 1996←6 Years→30 Apr 2002 | Dissolved | |
