| Company | Timeline | Status | |
| Devonport Royal Dockyard Limited Director • Chartered Engineer | 25 Oct 1994←1 Year 5 Months→31 Mar 1996 | Active | |
| Appledore Shipbuilders (2004) Limited Director • Chartered Engineer | 10 Jun 1994←1 Year 9 Months→31 Mar 1996 | Active | |
| Balfour Beatty Plc Director • Chartered Engineer | 24 Apr 1992←5 Years→30 Apr 1997 | Active | |
| Balfour Beatty Group Limited Director • Chartered Engineer | 15 Jul 1991←3 Years→21 Sep 1994 | Active | |
| Amentum Clean Energy Limited Director • Engineer | 6 Jul 1991←→30 Jun 1991 | Active | |
| PWR Power Projects Limited Director • Chartered Engineer | 1 Jan 1970←21 Years→30 Jun 1991 | Active | |
