| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | IRIS EMISSIONS SERVICES LIMITED | 🇬🇧Regno Unito | Active | 09/02/2026 – present |
| Person with significant control | ASTECH SYSTEM SERVICES LIMITED | 🇬🇧Regno Unito | Active | 01/10/2025 – present |
| Officer | ASTECH SYSTEM SERVICES LIMITED | 🇬🇧Regno Unito | Active | 31/01/2026 – present |
| Officer | COGDEM | 🇬🇧Regno Unito | Active | 15/04/2026 – 01/04/2026 |
| Officer | GAS ANALYSIS AND SENSING GROUP LIMITED | 🇬🇧Regno Unito | Active | 15/04/2026 – 01/04/2026 |
| Officer | THE SOURCE TESTING ASSOCIATION | 🇬🇧Regno Unito | Active | 15/04/2026 – 01/04/2026 |
| Officer | COGDEM | 🇬🇧Regno Unito | Active | 15/04/2026 – 01/04/2026 |
| Officer | GAS ANALYSIS AND SENSING GROUP LIMITED | 🇬🇧Regno Unito | Active | 15/04/2026 – 01/04/2026 |
| Person with significant control | THE SOURCE TESTING ASSOCIATION | 🇬🇧Regno Unito | Active | 26/06/2024 – 01/04/2026 |
| Person with significant control | COGDEM | 🇬🇧Regno Unito | Active | 24/06/2024 – 01/04/2026 |
| Person with significant control | GAS ANALYSIS AND SENSING GROUP LIMITED | 🇬🇧Regno Unito | Active | 22/06/2024 – 01/04/2026 |
| Officer | THE SOURCE TESTING ASSOCIATION | 🇬🇧Regno Unito | Active | 15/04/2026 – 01/04/2026 |
| Person with significant control | A & G CARRUTHERS LIMITED | 🇬🇧Regno Unito | Dissolved | 19/06/2024 – present |
| Person with significant control | BONO BOB LIMITED | 🇬🇧Regno Unito | Active | 19/06/2024 – present |
| Person with significant control | MIDGET MUSIC LIMITED | 🇬🇧Regno Unito | Active | 18/06/2024 – present |
| Person with significant control | ENH LIMITED | 🇬🇧Regno Unito | Dissolved | 18/06/2024 – present |
| Person with significant control | ESSENTIAL FILM & DEVELOPMENT LIMITED | — | Dissolved | 18/06/2024 – present |
| Person with significant control | POLITE STORM LIMITED | 🇬🇧Regno Unito | Active | 18/06/2024 – present |
| Person with significant control | COUNTRY CAMPING LIMITED | 🇬🇧Regno Unito | Dissolved | 19/06/2024 – present |
01/04/2026
resigned
30/01/2026
appointed
06/04/2016
appointed