| Company | Timeline | Status | |
| Halcrow Asia Partnership Limited Director • Chartered Engineer | 27 Jan 2004←11 Years→1 Mar 2015 | Active | |
| Sir William Halcrow & Partners Limited Director • Chartered Engineer | 1 Mar 1997←7 Years→6 Dec 2004 | Dissolved | |
| Halcrow Asia Partnership Limited Director • Chartered Engineer | 1 May 1992←8 Years→14 Nov 2000 | Active | |
