| Company | Timeline | Status | |
| National Gas Transmission Pension Scheme Nominee Company Two Limited Director • Director | 15 Jul 2025←3 Months→Current | Active | |
| National Gas Transmission Pension Scheme Nominee Company One Limited Director • Director | 15 Jul 2025←3 Months→Current | Active | |
| National Gas Transmission Pension Trustee Limited Director • Director | 15 Jul 2025←3 Months→Current | Active | |
| Leonard Cheshire Disability Director • Director | 21 Jul 2021←1 Year 8 Months→25 Mar 2023 | Active | |
| Revitalise Respite Holidays Director • Accountant | 28 Apr 2020←2 Years 11 Months→27 Mar 2023 | Active | |
| NGG Finance Plc Director • Accountant | 22 Mar 2013←4 Years→13 Nov 2017 | Active | |
| National Grid Holdings Limited Director • Accountant | 22 Mar 2013←4 Years→13 Nov 2017 | Active | |
| National Grid (Us) Holdings Limited Director • Accountant | 22 Mar 2013←4 Years→13 Nov 2017 | Active | |
| National Grid Holdings One Plc Director • Accountant | 22 Mar 2013←4 Years→13 Nov 2017 | Active | |
| Legal & General (Caerus) Limited Director • Accountant | 21 Jan 2013←2 Years 10 Months→30 Nov 2015 | Dissolved | |
