| Company | Timeline | Status | |
| Sentinel Properties Limited Director • Company Director And Secretary | 16 Sep 1991←34 Years→Current | Active | |
| Sentinel Properties Limited Secretary • Company Director And Secretary | 16 Sep 1991←34 Years→Current | Active | |
Portman Engineering Limited Director • Chartered Civil Engineer | 29 Jul 1991←27 Years→8 Jan 2019 | Dissolved | |
| Gamemove Limited Director • Chartered Engineer | 1 Jan 1970←47 Years→29 Mar 2017 | Active | |
