| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | GAST PLEDGECO LIMITED | — | Active | 28/03/2026 – 11/03/2024 |
| Officer | GAST TOPCO LIMITED | — | Liquidation | 14/01/2026 – 11/03/2024 |
| Officer | GAST MIDCO LIMITED | — | Active | 28/03/2026 – 11/03/2024 |
| Officer | NATIONAL GRID ELECTRICITY GROUP TRUSTEE LIMITED | — | Active | 13/02/2026 – 01/10/2024 |
| Officer | NATIONAL GRID US 6 LLC | 🇺🇸United States | Active | 10/12/2025 – present |
| Officer | NATIONAL GRID HOLDINGS ONE PLC | 🇬🇧United Kingdom | Active | 27/01/2026 – present |
| Officer | NATGRIDTW1 LIMITED | — | Active | 24/05/2026 – 01/10/2024 |
| Officer | THE NATIONAL GRID GROUP QUEST TRUSTEE COMPANY LIMITED | 🇬🇧United Kingdom | Liquidation | 01/01/2026 – 01/10/2024 |
| Officer | NATIONAL GRID TWENTY-FIVE LIMITED | — | Dissolved | 26/05/2026 – 22/11/2019 |
| Officer | NATIONAL GRID TWENTY THREE LIMITED | — | Dissolved | 31/05/2026 – present |
01/10/2024
resigned
11/03/2024
resigned
01/11/2017
appointed