| Company | Timeline | Status | |
| Rockhopper Exploration Plc Director • Geologist | 1 Feb 2014←9 Years→1 Oct 2023 | Active | |
A J Summers Ltd Director • Director | 17 Dec 2012←3 Years→19 Jan 2016 | Dissolved | |
| Dart Energy (Europe) Limited Director • Manager | 28 Feb 2008←1 Year 2 Months→21 May 2009 | Active | |
| The Industry Technology Facilitator Director • Manager | 29 Jun 2005←3 Years→4 Feb 2009 | Dissolved | |
| BG Group Pension Trustees Limited Director • Manager | 6 Jun 2001←10 Years→1 Nov 2011 | Active | |
