| Company | Timeline | Status | |
| Provian Construction Limited Director • Director/general Manager | 27 Sep 1991←10 Years→31 Jul 2002 | Active | |
| Bowzell Plant Limited Director • Director | 27 Sep 1991←10 Years→31 Jul 2002 | Active | |
| Brett Asphalt Limited Director • Director/general Manager | 27 Sep 1991←7 Years→4 Jan 1999 | Dissolved | |
| Bowzell Limited Director • Director | 27 Sep 1991←10 Years→31 Jul 2002 | Active | |
