| Company | Timeline | Status | |
| Cambridge House Residents Association Limited Director • Lecturer | 16 Feb 2006←5 Years→9 Jul 2011 | Active | |
| P S Architecture Limited Director • Teacher | 18 Nov 2003←9 Years→1 Dec 2012 | Dissolved | |
| P S Architecture Limited Secretary • Teacher | 18 Nov 2003←9 Years→1 Dec 2012 | Dissolved | |
