| Company | Timeline | Status | |
| Pentney Engineering Limited Secretary • Unreported | 7 Jun 1999←16 Years→10 Nov 2015 | Dissolved | |
| Wahlco Engineered Products Limited Secretary • Unreported | 7 Jun 1999←15 Years→10 Jun 2014 | Dissolved | |
| Thermatrix Limited Secretary • Unreported | 26 May 1998←27 Years→Current | Liquidation | |
