| Company | Timeline | Status | |
| Low Energy Designs Ltd Director • Retired Engineer | 12 Dec 2007←1 Year 7 Months→31 Jul 2009 | Active | |
| Barnett Engineering Limited Secretary • Company Director | 3 Dec 1992←32 Years→Current | Active | |
| Barnett Engineering Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
