| Company | Timeline | Status | |
Murdoch Mackenzie (Foundations) Limited Director • Civil Engineer | 28 Feb 2001←19 Years→22 Sep 2020 | Dissolved | |
| Murdoch Mackenzie Limited Director • Civil Engineer | 9 Jul 1996←29 Years→Current | Active | |
| Murdoch Mackenzie Construction Limited Director • Civil Engineer | 29 Apr 1992←33 Years→Current | Active | |
