| Company | Timeline | Status | |
| Rio Tinto Diamonds Limited Director • Director | 31 Mar 2014←2 Years 4 Months→23 Aug 2016 | Dissolved | |
| Iea Environmental Projects Limited Director • Risk Management | 10 Apr 2013←12 Years→Current | Active | |
| Iea Coal Research Limited Director • Risk Management | 10 Apr 2013←12 Years→Current | Active | |
| Iea Coal Research Limited Director • Risk Management | 10 Apr 2013←12 Years→19 Aug 2025 | Active | |
