| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Cargo | SWISS GEOTHERMAL LIMITED | — | Disuelta | 5/6/2026 – presente |
| Cargo | DAVE CLARKE & SON ELECTRICAL CONTRACTORS LIMITED | — | Disuelta | 11/6/2026 – presente |
| Cargo | DAVE CLARKE & SON LIMITED | — | Disuelta | 11/6/2026 – presente |
| Cargo | GREENHEAT SYSTEMS (UK) LIMITED | — | Disuelta | 14/6/2026 – presente |
| Cargo | GREENHEAT EUROPE LIMITED | — | Disuelta | 14/6/2026 – presente |
| Cargo | GREENHEAT GEOTHERMAL LIMITED | — | Disuelta | 14/6/2026 – presente |
31/1/2008
appointed
14/9/2006
appointed
31/1/2006
appointed