| Company | Timeline | Status | |
| Energivault Limited Director • Company Director | 2 Mar 2020←1 Year 4 Months→19 Jul 2021 | Active | |
| Organic Heat Exchangers Limited Director • Geologist | 21 Oct 2016←9 Years→Current | Active | |
| Groundwater & Geothermal Services Ltd Director • Geologist | 16 May 2013←9 Years→25 Oct 2022 | Dissolved | |
