| Company | Timeline | Status | |
| Manhay Geothermal Limited Director • Director  | 1 Feb 2024←1 Year 9 Months→Current  | Active  | |
| Penhallow Geothermal Limited Director • Director  | 1 Feb 2024←1 Year 9 Months→Current  | Active  | |
| United Downs Lithium Limited Director • Director  | 4 Nov 2022←3 Years→Current  | Active  | |
| Geogen Limited Director • Director  | 6 Jan 2021←4 Years→Current  | Active  | |
| Geocubed Limited Director • Director  | 1 Jul 2020←1 Year 9 Months→28 Mar 2022  | Active  | |
| United Downs Geothermal Limited Director • Unreported  | 17 Jul 2017←8 Years→Current  | Active  | |
| SKRL Limited Director • Director  | 13 Mar 2015←9 Years→26 Mar 2024  | Dissolved  | |
| Geon Energy Limited Director • Unreported  | 25 Nov 2014←10 Years→Current  | Active  | |
| Geothermal Engineering Limited Director • Engineer  | 4 Aug 2008←17 Years→Current  | Active  | |
| Blues Match Limited Director • Engineer  | 23 Feb 2007←18 Years→Current  | Active  | |
