| Company | Timeline | Status | |
| Robinson Farms Contracting Limited Director • Company Director  | 3 Sep 2013←12 Years→Current  | Active  | |
| Springbok Machinery Limited Director • Company Director  | 21 Jun 1999←26 Years→Current  | Active  | |
| Springbok Engineering Limited Director • Unreported  | 21 Jun 1999←26 Years→Current  | Active  | |
| Trevafield Limited Secretary • Unreported  | 11 Apr 1997←10 Years→15 Feb 2008  | Active  | |
| Trevafield Limited Director • Company Director  | 14 Mar 1992←10 Years→3 Sep 2002  | Active  | |
| Big Bolt Engineering Limited Director • Unreported  | 1 Jan 1970←55 Years→Current  | Active  | |
