| Company | Timeline | Status | |
| Chiltern Survey Equipment Limited Director • Company Director | 8 Nov 1991←29 Years→13 Jul 2021 | Dissolved | |
Martglade Limited Secretary • Unreported | 8 Nov 1991←25 Years→6 Jun 2017 | Dissolved | |
Martglade Limited Director • Company Director | 8 Nov 1991←25 Years→6 Jun 2017 | Dissolved | |
| Pulsar Measuring Systems Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
