| Company | Timeline | Status | |
| Kerett Electronic Services Limited Director • Company Director | 5 Aug 1998←27 Years→Current | Active | |
| Kerett Electronic Services Limited Director • Electronics Engineer | 5 Aug 1998←1 Day→5 Aug 1998 | Active | |
| Powersense Technology Limited Director • Electronics Engineer | 31 Aug 1991←11 Years→31 Jul 2003 | Dissolved | |
