| 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←33 Years→Current | Active | |
| Barnett Engineering Limited Director • Company Director | 16 Nov 1991←34 Years→Current | Active | |
