| Company | Timeline | Status | |
| National Grid Helicopters Limited Director • Company Director | 1 Sep 2025←3 Months→Current | Active | |
| National Grid Telecoms Limited Director • Company Director | 1 Sep 2025←3 Months→Current | Active | |
| National Grid Distributed Energy Limited Director • Company Director | 1 Dec 2023←9 Months→16 Sep 2024 | Active | |
| Carbon Sentinel Limited Director • Company Director | 1 Dec 2023←9 Months→16 Sep 2024 | Active | |
| National Grid Carbon Limited Director • Company Director | 1 Dec 2023←9 Months→16 Sep 2024 | Active | |
| National Grid Interconnector Holdings Limited Director • Company Director | 1 Feb 2023←7 Months→1 Sep 2023 | Active | |
| Thamesport Interchange Limited Director • Company Director | 1 Feb 2023←1 Year 7 Months→16 Sep 2024 | Active | |
| HGS Metering Limited Director • Company Director | 1 Apr 2022←1 Year 6 Months→29 Sep 2023 | Active | |
| Droylsden Metering Services Limited Director • Company Director | 1 Apr 2022←1 Year 6 Months→29 Sep 2023 | Dissolved | |
