| Company | Timeline | Status | |
| Twickenham Scientific Instruments Limited Secretary • Engineer | 11 Nov 1996←29 Years→Current | Active | |
| Twickenham Scientific Instruments Limited Director • Engineer | 17 Nov 1994←31 Years→Current | Active | |
| 61 St. Margarets Road (Management) Limited Director • Engineer | 2 Dec 1991←34 Years→Current | Active | |
| 61 St. Margarets Road (Management) Limited Director • Unreported | 1 Jan 1970←56 Years→Current | Active | |
