| Company | Timeline | Status | |
| The National Grid Youplan Trustee Limited Director • Solicitor | 15 Dec 2022←1 Year 2 Months→16 Feb 2024 | Dissolved | |
| National Grid Offshore Limited Director • Solicitor | 18 Nov 2022←2 Years 11 Months→Current | Active | |
| National Grid Ventures Limited Director • Solicitor | 18 Nov 2022←2 Years 11 Months→Current | Active | |
| Icelink Interconnector Limited Director • Solicitor | 18 Nov 2022←2 Years 11 Months→Current | Active | |
| Supergrid Electricity Limited Director • Solicitor | 18 Nov 2022←10 Months→27 Sep 2023 | Dissolved | |
| Supergrid Energy Transmission Limited Director • Solicitor | 18 Nov 2022←10 Months→27 Sep 2023 | Dissolved | |
| Lattice Group Employee Benefit Trust Limited Director • Solicitor | 18 Nov 2022←2 Years 1 Month→2 Jan 2025 | Dissolved | |
| Gridcom Limited Director • Solicitor | 18 Nov 2022←1 Year 3 Months→4 Mar 2024 | Dissolved | |
| Transco Limited Director • Solicitor | 18 Nov 2022←1 Year 3 Months→4 Mar 2024 | Dissolved | |
| Natgrid Limited Director • Solicitor | 18 Nov 2022←10 Months→27 Sep 2023 | Dissolved | |
