| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | HELLENES LIMITED | 🇬🇧Regno Unito | Active | 30/12/2025 – present |
| Officer | NOV HOLDING UK 1 LIMITED | 🇬🇧Regno Unito | Active | 06/03/2026 – present |
| Officer | NOV HOLDING UK 2 LIMITED | 🇬🇧Regno Unito | Active | 06/03/2026 – present |
| Officer | MSI PIPE PROTECTION TECHNOLOGIES UK LIMITED | 🇬🇧Regno Unito | Dissolved | 14/04/2026 – present |
| Officer | REEDHYCALOG UK LTD | 🇬🇧Regno Unito | Active | 17/12/2025 – present |
| Officer | SLIP CLUTCH SYSTEMS LIMITED | 🇬🇧Regno Unito | Dissolved | 29/05/2026 – present |
| Officer | PIPEX PX LTD | 🇬🇧Regno Unito | Dissolved | 23/05/2026 – present |
| Officer | TUBOSCOPE VETCO CAPITAL LIMITED | 🇬🇧Regno Unito | Active | 23/03/2026 – present |
| Officer | ENERGY EQUIPMENT CORPORATION LIMITED | — | Dissolved | 10/06/2026 – 30/09/2015 |
| Officer | DNOW UK LIMITED | 🇬🇧Regno Unito | Active | 08/05/2026 – 10/06/2014 |
| Officer | NATIONAL OILWELL (U.K.) LIMITED | 🇬🇧Regno Unito | Active | 15/12/2025 – 30/09/2015 |
| Officer | CAPITAL VALVES HOLDINGS LIMITED | 🇬🇧Regno Unito | Dissolved | 27/05/2026 – 10/06/2014 |
| Officer | CAPITAL VALVES HOLDINGS LIMITED | 🇬🇧Regno Unito | Dissolved | 27/05/2026 – 30/09/2011 |
| Officer | ANS (1001) LTD | — | Dissolved | 04/06/2026 – present |
| Officer | NATIONAL OILWELL (U.K.) LIMITED | 🇬🇧Regno Unito | Active | 15/12/2025 – 30/09/2011 |
| Officer | ANS (1002) LIMITED | — | Dissolved | 04/06/2026 – present |
| Officer | TUBOSCOPE VETCO CAPITAL LIMITED | 🇬🇧Regno Unito | Active | 23/03/2026 – 30/09/2011 |
14/04/2026
Scotland → United Kingdom
30/12/2025
United Kingdom → Scotland
11/09/2009
appointed