| Company | Timeline | Status | |
| Sontay Limited Director • Chairman | 19 Mar 2004←21 Years→Current | Active | |
| Sangamo Limited Director • Chairman | 29 Nov 2002←15 Years→28 Feb 2018 | Active | |
Comark Limited Director • Company Director | 3 Feb 1997←1 Year 9 Months→20 Nov 1998 | Dissolved | |
| Datapaq Limited Director • Company Director | 3 Feb 1997←1 Year 9 Months→20 Nov 1998 | Active | |
| Kerry Ultrasonics Limited Director • Director | 16 Aug 1991←3 Years→30 Apr 1995 | Active | |
