| Company | Timeline | Status | |
| Spec Partners Ltd Director • Geophysicist | 12 Jan 2009←16 Years→Current | Active | |
| Spectrum Geo Limited Director • Chief Exec Officer | 29 Dec 2005←2 Years 11 Months→24 Nov 2008 | Active | |
| TGS-Nopec Geophysical Company (UK) Limited Director • Gen Mgr | 16 Apr 1998←1 Year 8 Months→30 Dec 1999 | Dissolved | |
