| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Cargo | OXFORD RENEWABLE TECHNOLOGIES LIMITED | — | Disuelta | 13/6/2026 – presente |
| Cargo | OXECO U.K. LIMITED | — | Activa | 12/6/2026 – 21/4/2008 |
| Cargo | VELOCYS LIMITED | 🇬🇧United Kingdom | Activa | 14/6/2026 – 14/5/2007 |
| Cargo | VELOCYS TECHNOLOGIES LIMITED | 🇬🇧United Kingdom | Activa | 22/12/2025 – 29/3/2006 |
21/4/2008
resigned
14/5/2007
resigned
8/12/2005
appointed