| Company | Timeline | Status | |
Cliffhanger 53 Limited Director • Engineer | 27 Oct 2006←9 Years→19 Jan 2016 | Dissolved | |
| Schlumberger Common Investment Fund Limited Director • Engineer | 23 Sep 2004←8 Years→24 Jul 2013 | Active | |
| Schlumberger Trust Company Limited Director • Engineer | 24 Jun 2004←9 Years→24 Jul 2013 | Active | |
