| Company | Timeline | Status | |
| Erm Eurasia Limited Director • Consultant | 8 Jul 2005←8 Years→1 Sep 2013 | Active | |
| Dames & Moore Limited Director • Engineer | 20 Nov 1996←3 Years→31 Dec 1999 | Dissolved | |
| Reverse Engineering Limited Director • Consultant | 12 Sep 1996←7 Years→7 Apr 2004 | Active | |
