| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Cargo | NATIONAL GRID UK PENSION SCHEME TRUSTEE LIMITED | 🇬🇧United Kingdom | Activa | 8/6/2026 – 31/5/2021 |
| Cargo | NATIONAL GRID TWENTY THREE LIMITED | — | Disuelta | 31/5/2026 – 11/10/2022 |
| Cargo | NATIONAL GRID TWENTY-FIVE LIMITED | — | Disuelta | 26/5/2026 – presente |
| Cargo | NATGRIDTW1 LIMITED | — | Activa | 24/5/2026 – 14/2/2023 |
| Cargo | NATIONAL GRID US 6 LLC | 🇺🇸United States | Activa | 10/12/2025 – presente |
| Cargo | NATIONAL GRID HOLDINGS ONE PLC | 🇬🇧United Kingdom | Activa | 27/1/2026 – presente |
14/2/2023
resigned
11/10/2022
resigned
7/12/2015
appointed