| Company | Timeline | Status | |
| Graphene Nanochem Plc Director • Petroleum Engineer | 18 Apr 2006←1 Year 3 Months→30 Jul 2007 | Dissolved | |
E2 Tech Limited Director • Executive | 28 Mar 2003←9 Months→31 Dec 2003 | Dissolved | |
Weatherford Completion Systems (UK) Limited Director • Executive | 1 Nov 2000←3 Years→31 Dec 2003 | Dissolved | |
| Globalsantafe C.R. Luigs Limited Director • Sales Manager | 20 Oct 1999←5 Months→14 Apr 2000 | Dissolved | |
| Transocean Drilling U.K. Limited Director • Sales Manager | 20 Oct 1999←5 Months→14 Apr 2000 | Active | |
| Avanteq Limited Director • Managing Director | 1 Jun 1998←8 Months→23 Feb 1999 | Dissolved | |
| Iain Young Limited Secretary • Unreported | 18 Dec 1991←13 Years→11 May 2005 | Dissolved | |
