| Company | Timeline | Status | |
| Fugro Pension Trustees Limited Director • Director | 24 Aug 2007←18 Years→Current | Active | |
CGG Seismic Imaging (UK) Limited Director • Geophysicist | 15 Dec 2004←8 Years→31 Aug 2013 | Dissolved | |
| Robertson (UK) Limited Director • Director Seismic Processing | 1 Jul 2002←2 Years 6 Months→31 Dec 2004 | Active | |
