| Company | Timeline | Status | |
| Combine World Limited Director • Sales Director | 8 Aug 2014←5 Years→3 Sep 2019 | Active | |
| Oliver Ag 2010 Limited Director • Director | 17 Sep 2010←15 Years→Current | Active | |
| Oliver Agriculture Limited Director • Director | 5 Jun 2008←17 Years→Current | Active | |
| A.T. Oliver & Sons Limited Director • Sales Manager | 20 Dec 2004←20 Years→Current | Active | |
| Ato Holdings Limited Director • Branch Manager | 16 Jul 2001←3 Years→20 Dec 2004 | Active | |
