| Company | Timeline | Status | |
| Health Analytics Ltd Director • Engineer  | 30 Jun 2009←6 Years→3 Jun 2016  | Dissolved  | |
Sqlphone Limited Director • Engineer  | 4 Sep 2000←17 Years→31 Jul 2018  | Dissolved  | |
Sharepaper Limited Director • Electronics Engineer  | 9 Aug 1994←25 Years→3 Mar 2020  | Dissolved  | |
| S.J.B. Properties Limited Director • Electronics Engineer  | 7 Aug 1991←30 Years→8 Mar 2022  | Active  | |
