| Company | Timeline | Status | |
| Spellport Limited Director • Engineer | 25 Nov 1993←18 Years→4 Mar 2012 | Active | |
| Osmawest Limited Director • Engineer | 31 Dec 1991←5 Years→10 Dec 1997 | Active | |
| Osmawest Limited Director • Unreported | 1 Jan 1970←27 Years→10 Dec 1997 | Active | |
