| Company | Timeline | Status | |
| National Grid Hydrogen Limited Director • Chartered Accountant | 30 Sep 2025←2 Months→Current | Active | |
| Carbon Sentinel Limited Director • Chartered Accountant | 30 Sep 2025←2 Months→Current | Active | |
| National Grid Carbon Limited Director • Chartered Accountant | 30 Sep 2025←2 Months→Current | Active | |
| TP Leasing Limited Director • Company Director | 21 Jul 2025←4 Months→Current | Active | |
| National Grid Energy Metering Limited Director • Chartered Accountant | 1 Sep 2023←2 Years 3 Months→Current | Active | |
| National Grid Interconnector Holdings Limited Director • Chartered Accountant | 1 Sep 2023←2 Years 3 Months→Current | Active | |
| National Grid Twenty Seven Limited Director • Chartered Accountant | 1 Sep 2023←2 Years 3 Months→Current | Active | |
| National Grid Twenty Eight Limited Director • Chartered Accountant | 1 Sep 2023←2 Years 3 Months→Current | Active | |
| National Grid William Limited Director • Chartered Accountant | 1 Sep 2023←2 Years 3 Months→Current | Active | |
| Birch Sites Limited Director • Chartered Accountant | 1 Sep 2023←2 Years 3 Months→Current | Active | |
