| Company | Timeline | Status | |
| Clarence Murray (Potato Growers And Farmers) Limited Director • Farmer | 30 Sep 1999←26 Years→Current | Active | |
Montrose Potatoes (Services) Limited Director • Farmer | 15 Aug 1999←21 Years→22 Sep 2020 | Dissolved | |
| Carnegie Fuels Limited Director • Farmer | 31 Dec 1988←20 Years→30 Apr 2009 | Active | |
| D M Carnegie Director • Farmer | 24 Oct 1988←37 Years→Current | Active | |
