| Company | Timeline | Status | |
| Safety Essentials Limited Director • Engineer | 13 Apr 2004←4 Years→6 Jun 2008 | Dissolved | |
| Safety Essentials Limited Secretary • Engineer | 13 Apr 2004←4 Years→6 Jun 2008 | Dissolved | |
| Ixtech Limited Director • Engineer | 17 Sep 2002←23 Years→Current | Active | |
| Ixtech Limited Secretary • Engineer | 17 Sep 2002←5 Years→28 Sep 2007 | Active | |
Duxbury Projects Limited Director • Engineer | 13 Aug 2002←14 Years→16 Aug 2016 | Dissolved | |
Duxbury Projects Limited Secretary • Engineer | 13 Aug 2002←14 Years→16 Aug 2016 | Dissolved | |
