| Company | Timeline | Status | |
| Frogmore Hall Management Company Limited Director • Director | 12 Jun 2007←7 Years→1 Jan 2015 | Active | |
| Frogmore Hall Management Company Limited Secretary • Director | 12 Jun 2007←5 Years→19 Sep 2012 | Active | |
| Arthenella Limited Secretary • Director | 17 Feb 1993←32 Years→Current | Active | |
| Electro-Detectors Limited Director • Teacher | 11 Oct 1991←34 Years→Current | Active | |
| Electro-Detectors Limited Secretary • Unreported | 11 Oct 1991←34 Years→Current | Active | |
