| Company | Timeline | Status | |
| Audiology Unit Materials Limited Director • Director | 1 May 2010←15 Years→Current | Active | |
| Chand Britton Limited Director • Accountant | 20 Mar 2003←22 Years→Current | Active | |
| Audiology Unit Materials Limited Director • Accountant | 5 Apr 2001←8 Years→1 Apr 2010 | Active | |
| Subco Limited Director • Accountant | 24 Nov 1995←29 Years→Current | Active | |
| Subco Limited Secretary • Accountant | 24 Nov 1995←29 Years→Current | Active | |
