| Company | Timeline | Status | |
| Permanent-Way Institution (Incorporated) Director • Unreported | 2 Jul 2021←4 Years→Current | Active | |
| Institute For Sustainability Director • None | 1 Dec 2009←5 Years→31 Mar 2015 | Dissolved | |
WJ Associates Limited Director • Civil Engineer | 17 Sep 1992←24 Years→29 Nov 2016 | Dissolved | |
