| Company | Timeline | Status | |
| Quadnetics Group Limited Director • Director | 22 Jan 2002←2 Years 9 Months→1 Nov 2004 | Active | |
| Synectic Systems Limited Director • Engineer | 1 Jan 1996←9 Years→30 Sep 2005 | Active | |
| Quadrant Video Systems Limited Director • Technical Director | 24 Mar 1995←7 Years→1 May 2002 | Dissolved | |
| Stanmore Systems Ltd Director • Technical Director | 23 Apr 1993←9 Years→1 May 2002 | Active | |
| Quadrant Research & Development Limited Director • Technical Director | 10 Jan 1992←10 Years→1 May 2002 | Active | |
