| Company | Timeline | Status | |
| English National Ballet Director • Retired Retail Director | 17 Sep 2020←5 Years→Current | Active | |
| Shrewsbury Estates Limited Director • Director | 7 Apr 2010←15 Years→Current | Active | |
| John Berk Limited Secretary • Unreported | 18 Oct 2002←23 Years→Current | Active | |
David Berk Limited Director • Director | 30 Nov 1993←22 Years→10 Jun 2016 | Dissolved | |
