| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | INDUSTRIAL GROUP INTERNATIONAL LTD | 🇬🇧Regno Unito | Active | 10/03/2026 – present |
| Person with significant control | INDUSTRIAL GROUP INTERNATIONAL LTD | 🇬🇧Regno Unito | Active | 26/06/2024 – present |
| Person with significant control | JOHNSTON ASSETS LIMITED | 🇬🇧Regno Unito | Active | 22/06/2024 – 06/04/2016 |
| Person with significant control | JOHNSTON CRANE HIRE LIMITED | 🇬🇧Regno Unito | Active | 18/06/2024 – 06/04/2016 |
| Person with significant control | JOHNSTON RIGGING HOLDINGS LIMITED | 🇬🇧Regno Unito | Active | 19/06/2024 – present |
| Officer | JOHNSTON RIGGING (FIFE) LIMITED | 🇬🇧Regno Unito | Active | 19/01/2026 – present |
| Officer | JOHNSTON RIGGING HOLDINGS LIMITED | 🇬🇧Regno Unito | Active | 27/02/2026 – present |
| Officer | JOHNSTON ASSETS LIMITED | 🇬🇧Regno Unito | Active | 23/12/2025 – present |
| Officer | — | — | Active | 08/01/2026 – present |
01/01/2022
appointed
06/04/2016
resigned
01/11/2013
appointed