| Company | Timeline | Status | |
| Broughton Electronics Limited Secretary • Unreported | 19 Feb 1998←27 Years→Current | Active | |
| Radec Associates Limited Secretary • Unreported | 29 May 1991←11 Years→5 Feb 2003 | Dissolved | |
| System Design Evaluation Limited Secretary • Unreported | 29 May 1991←11 Years→5 Feb 2003 | Active | |
| Radec Engineering Limited Secretary • Unreported | 29 May 1991←11 Years→5 Feb 2003 | Active | |
