| Company | Timeline | Status | |
| Chalfont Heights Roads Committee Limited Director • Design Director | 1 Mar 2012←2 Years 4 Months→1 Jul 2014 | Active | |
| Square Dot Limited Secretary • Designer | 19 Aug 2000←25 Years→Current | Active | |
| Square Dot Limited Director • Designer | 18 Aug 2000←25 Years→Current | Active | |
