| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | BYDAND DRILLING LIMITED | 🇬🇧Regno Unito | Active | 01/06/2026 – 12/07/2010 |
| Officer | IAN RITCHIE LIMITED | — | Dissolved | 15/06/2026 – present |
| Officer | CLASS INSTRUMENTATION LTD | 🇬🇧Regno Unito | Active | 01/05/2026 – 28/06/1998 |
12/07/2010
resigned
08/04/2010
appointed
20/09/1996
appointed