| Company | Timeline | Status | |
| Valaris Plc Secretary • Unreported | 21 Sep 2009←2 Months→14 Dec 2009 | Liquidation | |
| Ensco Holdco Limited Secretary • Unreported | 21 Aug 2009←1 Year 3 Months→10 Dec 2010 | Active | |
| Ensco Services Limited Secretary • Businessman | 1 Apr 2006←5 Years→11 Apr 2011 | Active | |
| Ensco U.K. Limited Secretary • Businessman | 1 Apr 2006←5 Years→11 Apr 2011 | Active | |
| Ensco Offshore U.K. Limited Secretary • Businessman | 1 Apr 2006←4 Years→3 Dec 2010 | Active | |
