| Company | Timeline | Status | |
| Rotech Group Limited Director • Chief Executive Officer | 1 Apr 2011←2 Years 9 Months→13 Jan 2014 | Active | |
| Rotech Fabrication Limited Director • Chief Executive Officer | 24 Jun 2010←1 Year 4 Months→11 Nov 2011 | Dissolved | |
| Rotech Engineering Limited Director • Chief Executive Officer | 24 Jun 2010←1 Year 4 Months→11 Nov 2011 | Active | |
| Aberdeen Renewable Energy Group Director • Group Chief Executive | 17 Feb 2010←3 Months→9 Jun 2010 | Active | |
| Global Underwater Hub Limited Director • Managing Director | 5 Sep 2007←2 Years 9 Months→11 Jun 2010 | Active | |
Acergy Services Limited Director • Commercial Director | 23 Mar 2006←2 Years 3 Months→27 Jun 2008 | Dissolved | |
| Subsea 7 Blue Space Limited Director • Managing Director | 9 Jan 2006←2 Years 5 Months→27 Jun 2008 | Active | |
| Boskalis Subsea Services Limited Director • Company Director | 11 Aug 2003←1 Year 5 Months→4 Feb 2005 | Active | |
| Bibby Holdings Limited Director • Company Director | 11 Aug 2003←1 Year 5 Months→4 Feb 2005 | Active | |
