| Company | Timeline | Status | |
| Structural Science Limited Secretary • Director | 18 Apr 2001←24 Years→Current | Active | |
| Structural Science Limited Director • Director | 18 Apr 2001←24 Years→Current | Active | |
| Visual Software Construction Limited Director • Structural Engineer | 7 Aug 1996←1 Year 7 Months→31 Mar 1998 | Active | |
