| Company | Timeline | Status | |
| Stormont House (Whitelands) Management Limited Director • Environmental Scientist | 1 Apr 2017←8 Years→Current | Active | |
| Whitelands Park Estate Management Limited Director • Environmental Scientist | 1 Apr 2017←8 Years→Current | Active | |
| Rod Hughes And Associates Ltd Director • Chemical Engineer | 1 Jun 2000←25 Years→Current | Active | |
| Davidson Clark Ltd Director • Chemical Engineer | 1 Nov 1993←32 Years→Current | Active | |
