| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Person with significant control | PEARSON DRILLING LTD | 🇬🇧United Kingdom | Liquidation | 18/06/2024 – present |
| Person with significant control | BOREHOLE SOLUTIONS (NORTH) LIMITED | 🇬🇧United Kingdom | Active | 18/06/2024 – 27/01/2023 |
| Person with significant control | GEOENVIRO SOLUTIONS LTD | 🇬🇧United Kingdom | Active | 18/06/2024 – 15/03/2023 |
| Person with significant control | BOREHOLE SOLUTIONS INTERNATIONAL RIG SALES LTD | 🇬🇧United Kingdom | Dissolved | 18/06/2024 – present |
15/03/2023
resigned
27/01/2023
resigned
28/08/2019
appointed