| Company | Timeline | Status | |
Compact Centrifugal Compressors Limited Director • Chartered Engineer | 23 Apr 2007←5 Years→1 Aug 2012 | Dissolved | |
| TP Group Limited Director • Research Engineer | 29 Jan 1996←6 Years→7 Aug 2002 | Active | |
| Atmosphere Control International Limited Director • Research Engineer | 29 Jan 1996←5 Years→23 Dec 2001 | Dissolved | |
Corac Energy Technologies Limited Director • Research Engineer | 13 Jul 1995←6 Years→23 Dec 2001 | Dissolved | |
