| Company | Timeline | Status | |
| Prototype Productions Limited Director • Engineer | 6 May 1998←9 Years→31 Aug 2007 | Active | |
| Prototype Productions Limited Secretary • Engineer | 6 May 1998←9 Years→31 Aug 2007 | Active | |
| 4it Limited Director • Engineer | 15 Jan 1996←11 Years→30 Jun 2007 | Dissolved | |
