| Company | Timeline | Status | |
| Sci Central Limited Director • Director | 14 Feb 2005←5 Years→1 Apr 2010 | Active | |
| Cleanlandfill Co. Limited Director • Unreported | 10 Nov 1998←2 Years 2 Months→31 Jan 2001 | Active | |
Cawarden Demolition Co. Limited Director • Proposed Director | 14 Dec 1994←6 Years→31 Jan 2001 | Liquidation | |
