| Company | Timeline | Status | |
| 4D Optics Limited Director • Company Director | 29 May 2007←18 Years→23 Sep 2025 | Dissolved | |
| Victory Place Management Company Limited Director • Director | 14 Nov 2006←4 Years→18 Apr 2011 | Active | |
| Cambridge Research Systems Limited Director • Senior Scientist | 3 Apr 2003←3 Years→31 Jan 2007 | Active | |
