| Company | Timeline | Status | |
| Simpson Oils Limited Secretary • Company Director | 28 Aug 1996←12 Years→10 Jan 2009 | Active | |
| Hugh Simpson (Contractors) Limited Director • Company Director | 4 Apr 1989←19 Years→10 Jan 2009 | Active | |
| Hugh Simpson (Contractors) Limited Secretary • Unreported | 4 Apr 1989←19 Years→10 Jan 2009 | Active | |
