| Company | Timeline | Status | |
| Drysdale Brothers (Larbert) Limited Director • General Manager | 6 Nov 2013←5 Years→15 Jul 2019 | Active | |
| Abacus Valves International Limited Director • Project Director | 15 Sep 2008←2 Years 10 Months→22 Jul 2011 | Active | |
PCS Valve & Controls Limited Director • Director | 9 Feb 2006←8 Years→23 Jan 2015 | Dissolved | |
