| Company | Timeline | Status | |
| Ellis Patents Holdings Limited Director • Company Director | 1 Mar 2012←13 Years→Current | Active | |
| Ryedale Y.M.C.A Director • Company Director | 13 Feb 1996←9 Years→7 Dec 2005 | Active | |
| Derwent Training Association Director • Company Director | 1 Jun 1993←6 Years→10 Apr 2000 | Active | |
| Ellis Patents Limited Secretary • Unreported | 15 Jul 1991←5 Years→20 Jan 1997 | Active | |
| Ellis Patents Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
