| Company | Timeline | Status | |
| Lead Paint Survey Limited Director • Scientist | 8 Nov 2016←8 Years→Current | Active | |
| Lead Survey Ltd Director • Scientist | 7 Nov 2016←8 Years→Current | Active | |
| Constructive Conservation Limited Director • Conservation Scientist | 5 Dec 2014←10 Years→Current | Active | |
Vista Partitioning Products Limited Director • Development Scientist | 30 Jun 2013←3 Years→13 Jun 2017 | Dissolved | |
Vista Partitioning Products Limited Secretary • Scientist | 3 Jun 2009←8 Years→13 Jun 2017 | Dissolved | |
| Heritage Testing Limited Director • Director | 4 Feb 2005←20 Years→Current | Active | |
