| Company | Timeline | Status | |
| Parker Wilson Sustain LLP Designated LLP Member • Unreported | 11 Apr 2008←5 Years→30 Apr 2013 | Active | |
| Parker Wilson Holdings Limited Director • Director | 14 Oct 2005←1 Year 12 Months→13 Oct 2007 | Active | |
| Pwa Parker Wilson Limited Director • Engineer | 1 Nov 1999←13 Years→29 May 2013 | Active | |
