| Company | Timeline | Status | |
Plain Trading Limited Director • Engineer | 18 Feb 2009←6 Years→8 Dec 2015 | Dissolved | |
| Extreme Instrumentation Limited Director • Director | 24 Oct 2007←18 Years→Current | Active | |
| Alan Dick Engineering Limited Director • Engineer | 22 May 2001←18 Years→10 Jul 2019 | Active | |
| Newton Engineering Group Limited Director • Engineer | 28 Feb 2001←24 Years→Current | Active | |
| Newton Technical Services Limited Director • Engineer | 23 Jun 1997←28 Years→Current | Active | |
| Newton Technology Group Plc Director • Engineer | 26 Mar 1997←28 Years→Current | Active | |
| Metals Research Limited Director • Unreported | 10 Jan 1997←28 Years→Current | Active | |
| S G Controls Limited Director • Unreported | 27 Dec 1996←28 Years→Current | Active | |
| International Ceramics Trading Limited Director • Engineer | 17 Feb 1995←26 Years→21 Sep 2021 | Dissolved | |
| APT Asia Limited Director • Engineer | 15 Feb 1995←26 Years→9 Nov 2021 | Dissolved | |
