| Company | Timeline | Status | |
| T.J. Plant Limited Director • Builder | 30 Apr 2014←11 Years→Current | Active | |
| Ga Robertson Holdings Ltd Director • Unreported | 2 Dec 2013←12 Years→Current | Active | |
| G A Robertson Building Services Ltd Director • Unreported | 25 Jun 2004←21 Years→Current | Active | |
