| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | GN SURVEYS LTD | 🇬🇧Regno Unito | Active | 11/04/2026 – 25/11/2022 |
| Officer | MICROSTIM LTD | 🇬🇧Regno Unito | Active | 09/01/2026 – present |
| Officer | P.D.F. LIMITED | 🇬🇧Regno Unito | Active | 19/05/2026 – present |
| Officer | EPI AMERICAS LTD | 🇬🇧Regno Unito | Active | 11/05/2026 – present |
| Officer | EPI GLOBAL LTD | 🇬🇧Regno Unito | Active | 21/05/2026 – present |
| Officer | E P I COLOMBIA LTD | 🇬🇧Regno Unito | Active | 19/05/2026 – present |
| Officer | EPI GROUP HOLDINGS LTD | 🇬🇧Regno Unito | Active | 21/05/2026 – present |
| Officer | E P I LIMITED | 🇬🇧Regno Unito | Active | 22/04/2026 – present |
| Officer | INDEPENDENT SEISMIC MANAGEMENT LIMITED | — | Dissolved | 01/06/2026 – 01/05/2015 |
| Officer | STRATEGIC SEISMIC MANAGEMENT LIMITED | — | Dissolved | 02/06/2026 – 31/03/2016 |
25/11/2022
resigned
01/06/2020
appointed
27/01/2009
appointed