| Company | Timeline | Status | |
| Kane International Limited Director • Consultant | 26 Jul 2002←10 Years→18 Jan 2013 | Active | |
| Research Engineers Limited Director • Divisional Chief Executive | 1 Nov 1996←3 Years→15 Mar 2000 | Dissolved | |
| Analytical Development Company Limited Director • Company Director | 28 Jul 1994←6 Years→6 Mar 2001 | Dissolved | |
| Telegan Gas Monitoring Limited Director • Director | 5 Jul 1993←7 Years→31 May 2001 | Dissolved | |
| Halma It Services Limited Director • Director | 4 Jul 1992←8 Years→6 Mar 2001 | Dissolved | |
| Crowcon Detection Instruments Limited Director • Director | 1 Jan 1970←31 Years→31 May 2001 | Active | |
