| Company | Timeline | Status | |
Uniq Architecture Limited Director • Designer | 1 Sep 2010←4 Years→13 Jan 2015 | Dissolved | |
| Ivon Blumer Architects Limited Director • Unreported | 16 Mar 2003←22 Years→Current | Active | |
| Ivon Blumer Architects Limited Secretary • Unreported | 2 Sep 1998←27 Years→Current | Active | |
