| Company | Timeline | Status | |
GB Calibration Limited Director • Engineer | 21 Sep 2018←1 Year→8 Oct 2019 | Dissolved | |
| GB Calibration Services Limited Director • Engineer | 7 Nov 2007←18 Years→Current | Active | |
| GB Calibration Services Limited Secretary • Unreported | 7 Nov 2007←8 Years→13 May 2016 | Active | |
| Manchester Precision Engineering Limited Director • Engineer | 16 Aug 2004←1 Month→4 Oct 2004 | Active | |
