| Company | Timeline | Status | |
| Telford Threadgauge Limited Director • Director | 4 Sep 1997←3 Years→16 Jul 2001 | Active | |
| Threadmaster Gauges Limited Director • Engineer | 16 Jan 1992←29 Years→12 Sep 2021 | Active | |
| Microkenilworth Limited Director • Precision Engineer | 16 Feb 1991←30 Years→12 Sep 2021 | Active | |
