| Company | Timeline | Status | |
| Directional Drilling Dynamics Limited Director • Director | 16 Aug 1989←1 Year→16 Aug 1990 | Active | |
Goldstar Designs Limited Director • Director | 28 Jul 1989←1 Day→28 Jul 1989 | Dissolved | |
Advanced Systems Engineering Limited Director • Director | 19 Jan 1989←1 Year 3 Months→19 Apr 1990 | Dissolved | |
