| Company | Timeline | Status | |
| WSP European Holdings Limited Director • Environmental Consultant | 18 Dec 2000←15 Days→2 Jan 2001 | Active | |
| WSP Remediation Limited Director • Environmental Consultant | 16 Mar 1999←2 Years 6 Months→5 Oct 2001 | Dissolved | |
| WSP Buildings Limited Director • Environmental Consultant | 1 Jan 1998←12 Months→31 Dec 1998 | Dissolved | |
| WSP Management Services Limited Director • Environmental Biologist | 1 Aug 1995←2 Years→1 Aug 1997 | Active | |
