| Company | Timeline | Status | |
| Jon Clay Consultancy Limited Director • Director | 4 Dec 2024←1 Year→Current | Active | |
| NG Jersey Limited Director • Company Director | 5 Mar 2018←3 Years→29 Jun 2021 | Converted/Closed | |
| NGT Holding Company (Isle Of Man) Limited Director • Company Director | 1 Nov 2017←5 Years→14 Sep 2023 | Converted/Closed | |
| National Grid Us 6 LLC Director • Company Director | 1 Nov 2017←8 Years→Current | Active | |
| National Grid Jersey Investments Limited Director • Company Director | 1 Nov 2017←4 Years→3 May 2022 | Converted/Closed | |
| Natgridtw1 Limited Director • Company Director | 1 Nov 2017←2 Years 3 Months→12 Feb 2020 | Active | |
| Natgrid One Limited Director • Company Director | 1 Nov 2017←4 Years→21 Jun 2022 | Dissolved | |
| National Grid Twelve Limited Director • Company Director | 1 Nov 2017←2 Years 3 Months→12 Feb 2020 | Active | |
| National Grid (Us) Partner 1 Limited Director • Company Director | 1 Nov 2017←5 Years→14 Apr 2023 | Active | |
| Lattice Group Limited Director • Company Director | 1 Nov 2017←5 Years→14 Apr 2023 | Active | |
