| Company | Timeline | Status | |
| Ithaca Zeta Limited Director • Director | 1 Jan 2019←3 Years→30 Jun 2022 | Active | |
| Austia Limited Director • Director | 13 Mar 2017←8 Years→Current | Active | |
| Petroleum Geology Conferences Limited Director • Managing Director | 10 Dec 2012←3 Years→5 Apr 2016 | Dissolved | |
| Gesgb Director • Managing Director | 11 Jan 2012←3 Years→13 Jan 2015 | Active | |
| Ithaca SP E&P Limited Director • Managing Director | 3 Oct 2008←4 Years→1 May 2013 | Active | |
| Ineos UK E&P Holdings Limited Director • Geophysicist | 17 Apr 2003←2 Years 10 Months→22 Feb 2006 | Active | |
| Ineos UK SNS Limited Director • Geophysicist | 17 Apr 2003←2 Years 10 Months→22 Feb 2006 | Active | |
