| Company | Timeline | Status | |
| Quattro Design Architects Limited Secretary • Architect | 16 May 2003←11 Years→31 May 2014 | Active | |
| Quattro Design Architects Limited Director • Architect | 16 May 2003←11 Years→31 May 2014 | Active | |
| Quattro Design Limited Director • Architect | 18 Sep 1992←21 Years→31 May 2014 | Active | |
| Quattro Design Limited Secretary • Unreported | 18 Sep 1992←21 Years→31 May 2014 | Active | |
