| Company | Timeline | Status | |
| 3 Alpha Consultants Ltd Director • Scientist | 20 May 2016←7 Years→30 Jan 2024 | Dissolved | |
| UK Radon Association Director • Physicist | 16 Oct 2014←2 Years 2 Months→2 Jan 2017 | Active | |
| The Radon Council Limited Director • Laboratory Manager | 10 Jul 2014←12 Months→9 Jul 2015 | Active | |
Dream5 Ltd Director • Physicist | 16 May 2011←2 Years 8 Months→15 Jan 2014 | Dissolved | |
