| Company | Timeline | Status | |
| Pentney Engineering Limited Director • Director | 16 Feb 1999←16 Years→10 Nov 2015 | Dissolved | |
| Wahlco Engineered Products Limited Director • Director | 16 Feb 1999←15 Years→10 Jun 2014 | Dissolved | |
| Thermatrix Limited Director • Executive | 24 Aug 1993←32 Years→Current | Liquidation | |
