| Company | Timeline | Status | |
| Chiswick Horticultural And Allotments Society Director • Retired | 28 Sep 2005←4 Months→22 Feb 2006 | Active | |
Sir William Halcrow & Partners (Malaysia) Limited Director • Chartered Engineer | 1 Mar 1996←1 Year 6 Months→1 Sep 1997 | Dissolved | |
| Halcrow Asia Limited Director • Chartered Engineer | 1 Dec 1992←4 Years→1 Sep 1997 | Active | |
| Sir William Halcrow & Partners Limited Director • Chartered Engineer | 15 Nov 1991←7 Years→24 Jul 1999 | Dissolved | |
