| Company | Timeline | Status | |
| Labgas UK Limited Director • Director | 25 Nov 2010←14 Years→Current | Active | |
Burke Electronics Limited Director • Engineer | 1 Apr 1999←19 Years→29 May 2018 | Dissolved | |
Burke Electronics Limited Secretary • Engineer | 1 Apr 1999←19 Years→29 May 2018 | Dissolved | |
| Speck Analytical Limited Director • Manager | 9 Jun 1998←27 Years→Current | Active | |
