| Company | Timeline | Status | |
| Crrabb Limited Director • Engineer | 18 Jun 2010←9 Years→20 May 2020 | Active | |
| Turbine Controls Holdings Limited Secretary • Engineer | 12 Aug 2009←12 Years→17 Mar 2022 | Active | |
| Turbine Controls Holdings Limited Director • Engineer | 12 Aug 2009←12 Years→17 Mar 2022 | Active | |
Turbine Systems Limited Director • Engineer | 17 May 1992←28 Years→13 Oct 2020 | Dissolved | |
| Turbine Controls Limited Director • Projects Director | 1 Jan 1991←29 Years→20 May 2020 | Active | |
