| Company | Timeline | Status | |
| Qi Instruments Limited Director • Technical Director | 19 Nov 2015←6 Years→1 Mar 2022 | Dissolved | |
| SS Enterprise Limited Director • Technical Director | 26 Apr 1999←26 Years→Current | Active | |
| SS Scientific Limited Director • Technical Director | 10 Jan 1996←29 Years→Current | Active | |
