| Company | Timeline | Status | |
121tri Limited Director • Sports Coaching | 16 Mar 2012←6 Years→17 Apr 2018 | Dissolved | |
| Phosphor Holdings Limited Director • Electrical Engineer | 15 Sep 2003←22 Years→Current | Active | |
| O.R. Building Services Limited Director • Engineer | 12 Feb 1999←11 Years→8 Jul 2010 | Active | |
| Nrgon Limited Director • Electrical Engineer | 27 Nov 1997←27 Years→Current | Active | |
