| Company | Timeline | Status | |
| J.H.Cowper Investments Limited Director • Director | 18 Dec 2001←23 Years→Current | Active | |
| Dove Marine Limited Director • Company Director | 5 Oct 2001←24 Years→Current | Active | |
| Tyneside Estate Office Limited Director • Company Director | 1 Jul 2001←24 Years→Current | Active | |
| Dove Marine Limited Secretary • Secretary | 4 Sep 2000←25 Years→Current | Active | |
| Tyneside Estate Office Limited Secretary • Unreported | 27 Sep 1993←32 Years→Current | Active | |
| J.H.Cowper Investments Limited Secretary • Company Secretary | 1 Jan 1970←55 Years→Current | Active | |
