| Company | Timeline | Status | |
| Dartford Metalcrafts Ltd Secretary • Engineer | 1 Apr 2005←20 Years→Current | Active | |
| Dartford Metalcrafts Ltd Director • Engineer | 29 Sep 2000←25 Years→Current | Active | |
| Quartic Engineering Ltd Secretary • Unreported | 29 Sep 1997←7 Years→31 Jul 2005 | Active | |
| Quartic Properties Ltd Director • Engineer | 20 Nov 1991←33 Years→Current | Active | |
| Quartic Engineering Ltd Director • Engineer | 7 Aug 1991←34 Years→Current | Active | |
