| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Person with significant control | CRUSADER MARITIME SERVICES LIMITED | 🇬🇧United Kingdom | Active | 20/12/2025 – present |
| Person with significant control | PGRIFFITHS (INTERNATIONAL) LIMITED | 🇬🇧United Kingdom | Active | 20/12/2025 – present |
| Person with significant control | ARGYLL DATA DEVELOPMENT LTD | 🇬🇧United Kingdom | Active | 29/10/2025 – present |
| Person with significant control | ARGYLL ENERGY DEVELOPMENT LTD | 🇬🇧United Kingdom | Active | 28/10/2025 – present |
| Person with significant control | EUROPEAN PERFORMANCE MANAGEMENT SYSTEMS LIMITED | — | Dissolved | 26/06/2024 – present |
05/04/2026
Scotland → United Kingdom
20/12/2025
United Kingdom → Scotland
02/05/2017
appointed