| Company | Timeline | Status | |
| Iconism Limited Secretary • Engineer | 31 Oct 2001←24 Years→Current | Active | |
| Dartford Metalcrafts Ltd Director • Engineer | 16 Mar 2000←25 Years→Current | 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 | |
