| Company | Timeline | Status | |
Coalbed Systems Ltd Director • Engineer | 18 Jun 2009←8 Years→15 Aug 2017 | Dissolved | |
| Intelligent Drilling Tools Limited Director • Engineer | 8 Dec 2008←16 Years→Current | Active | |
| Cutting And Wear Limited Director • Director | 20 Feb 1998←27 Years→Current | Active | |
| Quicktip Limited Director • Director | 2 Jan 1992←33 Years→Current | Active | |
| Cutting & Wear Resistant Developments Limited Director • Director | 31 Oct 1991←34 Years→Current | Active | |
