| Company | Timeline | Status | |
| The Modern Valve Radio Company Ltd Director • Consultant Designer | 12 Apr 2003←22 Years→Current | Active | |
| The Modern Valve Radio Company Ltd Secretary • Consultant Designer | 12 Apr 2003←22 Years→Current | Active | |
| The Industrial Video Recording Company Limited Secretary • Unreported | 5 Apr 2003←22 Years→Current | Active | |
