| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | PREMIER TRANSMISSION LIMITED | 🇬🇧United Kingdom | Active | 02/01/2026 – present |
| Officer | BELFAST GAS TRANSMISSION LIMITED | 🇬🇧United Kingdom | Active | 02/01/2026 – present |
| Officer | WEST TRANSMISSION LIMITED | 🇬🇧United Kingdom | Active | 02/01/2026 – present |
| Officer | MOYLE INTERCONNECTOR LIMITED | 🇬🇧United Kingdom | Active | 02/01/2026 – present |
| Officer | MUTUAL ENERGY LIMITED | 🇬🇧United Kingdom | Active | 02/01/2026 – present |
| Officer | DIABETES UK SERVICES LIMITED | 🇬🇧United Kingdom | Active | 21/12/2025 – present |
| Officer | NATIONAL GRID HOLDINGS ONE PLC | 🇬🇧United Kingdom | Active | 27/01/2026 – present |
| Officer | NATIONAL GRID TWENTY-FIVE LIMITED | — | Dissolved | 26/05/2026 – 09/09/2013 |
| Officer | NATIONAL GRID UK PENSION SCHEME TRUSTEE LIMITED | 🇬🇧United Kingdom | Active | 08/06/2026 – 17/06/2013 |
| Officer | NATIONAL GRID TWENTY THREE LIMITED | — | Dissolved | 31/05/2026 – 09/09/2013 |
| Officer | NATIONAL GRID BLUE POWER FINANCE LIMITED | — | Dissolved | 07/06/2026 – 09/09/2013 |
| Officer | NGET FINANCE (NO 1) LIMITED | — | Dissolved | 12/06/2026 – present |
| Officer | CADENT FINANCE PLC | 🇬🇧United Kingdom | Active | 12/06/2026 – 09/09/2013 |
01/01/2026
appointed
12/05/2023
appointed
01/12/2006
appointed