| Company | Timeline | Status | |
| Diamond Diesels Enterprises Limited Director • Retired | 7 Nov 2016←1 Year 5 Months→18 Apr 2018 | Active | |
| Diamond Diesels Investments Limited Director • None | 15 Dec 2009←8 Years→18 Apr 2018 | Active | |
| G & C Taylor Limited Director • Director | 30 May 2007←18 Years→Current | Active | |
| Diamond Diesels Ltd Director • Director | 14 Oct 2004←13 Years→18 Apr 2018 | Dissolved | |
| Diamond Diesels (UK) Limited Director • Product Support Manager | 28 Nov 2001←16 Years→18 Apr 2018 | Active | |
