| Company | Timeline | Status | |
| PSC Plant Limited Director • Director  | 10 Apr 2013←12 Years→Current  | Active  | |
PT McWilliams Contracts Limited Director • None  | 30 Sep 2011←4 Years→15 Dec 2015  | Dissolved  | |
| PT McWilliams Limited Director • Health And Safety Director  | 12 Feb 2004←20 Years→9 May 2024  | Dissolved  | |
