| Company | Timeline | Status | |
| Quartztec Europe Limited Director • Director | 16 Oct 2015←7 Years→2 Aug 2023 | Active | |
| Quartztec Holdings Limited Director • Managing Director And Company Chairman | 17 Sep 2015←7 Years→2 Aug 2023 | Active | |
| Surrey Nanosystems Limited Director • Director | 7 Feb 2007←8 Years→31 May 2015 | Active | |
| Thermco Systems Limited Director • Company Director | 17 Nov 2003←21 Years→Current | Active | |
| Tokyo Electron Europe Limited Director • Director | 1 Dec 1994←8 Years→1 Apr 2003 | Active | |
