| Company | Timeline | Status | |
| Tamar Selections Limited Director • Retired | 1 May 2017←8 Years→Current | Active | |
| Berkmann Family Holdings Limited Director • Consultant | 14 Jun 2005←3 Years→15 Nov 2008 | Active | |
| Berkmann Wine Cellars Limited Director • Consultant | 1 Jan 2003←5 Years→27 Nov 2008 | Active | |
| Cheesman Associates Limited Director • Manager | 25 Sep 2002←23 Years→Current | Liquidation | |
