| Company | Timeline | Status | |
| Argyle Engineering Limited Secretary • Director | 1 Nov 2003←21 Years→Current | Active | |
Washbourn & Garrett Limited Secretary • Director | 1 Nov 2003←11 Years→13 Nov 2014 | Dissolved | |
| Hoghton Holding Company Limited Director • Director | 2 Sep 2002←23 Years→Current | Active | |
Hargood Engineers Limited Secretary • Company Director | 2 Dec 1996←18 Years→24 Mar 2015 | Dissolved | |
Washbourn & Garrett Limited Director • Director | 13 Apr 1993←21 Years→13 Nov 2014 | Dissolved | |
Hargood Engineers Limited Director • Director | 31 Dec 1991←23 Years→24 Mar 2015 | Dissolved | |
| Argyle Engineering Limited Director • Director | 12 Oct 1991←34 Years→Current | Active | |
| Metrail Engineering Limited Director • Director/secretary | 1 Oct 1991←34 Years→Current | Active | |
| Metrail Engineering Limited Secretary • Unreported | 1 Oct 1991←34 Years→Current | Active | |
| Winleafe Limited Secretary • Unreported | 5 Jul 1991←34 Years→Current | Active | |
