| Company | Timeline | Status | |
| Aquila Instruments Limited Director • Director | 17 Jan 2000←3 Years→26 Mar 2003 | Active | |
| Zemax Europe Limited Secretary • Manager | 19 May 1993←2 Years→31 May 1995 | Dissolved | |
| Zemax Europe Limited Director • Manager | 19 May 1993←18 Years→29 Dec 2011 | Dissolved | |
