| Company | Timeline | Status | |
| Contract Air Systems (Scotland) Limited Director • Director | 26 Apr 2010←13 Years→17 Oct 2023 | Dissolved | |
| Contract Air Systems Limited Director • Project Manager | 9 Sep 1999←26 Years→Current | Active | |
| Contract Air Systems Limited Secretary • Project Manager | 9 Sep 1999←26 Years→Current | Active | |
