| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | BARROW GAS STORAGE LIMITED | — | Dissolved | 26/05/2026 – 29/02/2012 |
| Officer | BACTON STORAGE COMPANY LIMITED | — | Dissolved | 01/06/2026 – 29/02/2012 |
| Officer | CENTRICA BAIRD LIMITED | — | Dissolved | 03/06/2026 – 29/02/2012 |
29/02/2012
resigned
12/07/2010
appointed
16/09/2009
appointed