| Company | Timeline | Status | |
| G & C Taylor Limited Secretary • Unreported | 30 May 2007←18 Years→Current | Active | |
| Diamond Diesels (UK) Limited Secretary • Unreported | 30 Jun 2005←7 Years→24 May 2013 | Active | |
| Diamond Diesels Ltd Secretary • Unreported | 14 Oct 2004←9 Years→16 Dec 2013 | Dissolved | |
