| Company | Timeline | Status | |
| Quantum Leap Design Limited Director • Engineer | 16 Oct 2017←8 Years→Current | Active | |
SF Technology Consultants Limited Director • Engineer | 8 Jul 2013←4 Years→19 Sep 2017 | Dissolved | |
| DSMB Technology Limited Director • Engineer | 1 Nov 2011←14 Years→Current | Active | |
Claratech Limited Director • Research And Development | 20 Nov 2003←11 Years→18 Aug 2015 | Dissolved | |
