| Company | Timeline | Status | |
| Halcrow Water Services Limited Director • Chartered Accountant | 19 Jun 2007←4 Years→30 Nov 2011 | Dissolved | |
| Construction Industry Research And Information Association Director • Chief Executive | 8 Feb 2007←5 Years→28 May 2012 | Active | |
| Halcrow International Partnership Director • Chartered Accountant | 1 Mar 2006←5 Years→30 Nov 2011 | Active | |
| Halcrow Canada Limited Director • Chartered Accountant | 25 Nov 2004←7 Years→30 Nov 2011 | Dissolved | |
| Halcrow Asia Limited Director • Chartered Accountant | 10 Jan 2002←9 Years→14 Nov 2011 | Active | |
| Transmark Asia Limited Director • Chartered Accountant | 24 May 1999←12 Years→14 Nov 2011 | Active | |
Sir William Halcrow & Partners (Malaysia) Limited Director • Chartered Accountant | 1 Sep 1997←14 Years→30 Nov 2011 | Dissolved | |
| Halcrow (Consulting Engineers & Architects) Limited Director • Chartered Accountant | 1 Sep 1997←14 Years→30 Nov 2011 | Active | |
| Halcrow Group Limited Director • Chartered Accountant | 6 Aug 1997←14 Years→30 Nov 2011 | Active | |
| Crouch Hogg Waterman Limited Director • Chartered Accountant | 19 Jun 1997←14 Years→30 Nov 2011 | Dissolved | |
