| Company | Timeline | Status | |
Stantec Treatment Holding Limited Director • Director | 6 Feb 2007←3 Years→23 Dec 2010 | Dissolved | |
| Biwater Holdings Limited Director • Company Director | 1 Nov 2002←4 Years→13 Dec 2006 | Liquidation | |
| Bournemouth Water Limited Director • Director | 21 Sep 2001←10 Months→26 Jul 2002 | Dissolved | |
| Sembcorp Utilities Services Limited Director • Chartered Engineer | 7 Dec 2000←1 Year 6 Months→4 Jul 2002 | Active | |
| Kew Lodge Management Co.Limited Director • Director | 26 Jan 1999←16 Years→20 Nov 2015 | Active | |
| Career Consultants On-Line Ltd Director • Consulting Engineer | 31 Dec 1998←16 Years→15 Dec 2015 | Active | |
| Halcrow Group Limited Director • Chartered Engineer | 3 Apr 1998←1 Year→30 Apr 1999 | Active | |
| Swan Group Director • Chartered Engineer | 1 Jul 1997←3 Years→21 Feb 2001 | Active | |
| Crouch Hogg Waterman Limited Director • Chartered Engineer | 3 Jun 1997←16 Days→19 Jun 1997 | Dissolved | |
| Burderop Investments Limited Director • Chartered Engineer | 1 May 1996←2 Years 12 Months→30 Apr 1999 | Dissolved | |
