| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | SWISS GEOTHERMAL LIMITED | — | Dissolved | 05/06/2026 – present |
| Officer | DAVE CLARKE & SON ELECTRICAL CONTRACTORS LIMITED | — | Dissolved | 11/06/2026 – present |
| Officer | DAVE CLARKE & SON LIMITED | — | Dissolved | 11/06/2026 – present |
| Officer | GREENHEAT SYSTEMS (UK) LIMITED | — | Dissolved | 14/06/2026 – present |
| Officer | GREENHEAT EUROPE LIMITED | — | Dissolved | 14/06/2026 – present |
| Officer | GREENHEAT GEOTHERMAL LIMITED | — | Dissolved | 14/06/2026 – present |
31/01/2008
appointed
14/09/2006
appointed
31/01/2006
appointed