| Company | Timeline | Status | |
| Carlwood Properties Limited Secretary • Unreported | 12 Aug 1997←28 Years→Current | Active | |
| John A. Stephens Limited Secretary • Unreported | 28 Jun 1991←34 Years→Current | Active | |
| Castle Concrete Limited Secretary • Unreported | 7 Jun 1991←34 Years→Current | Active | |
| Castle Concrete Limited Director • Company Secretary | 7 Jun 1991←34 Years→Current | Active | |
| Evenbay Limited Secretary • Unreported | 31 Dec 1990←33 Years→2 Apr 2024 | Dissolved | |
