| ضابط | HGS METERING LIMITED | 🇬🇧United Kingdom | نشط | 29/04/2026 – 31/03/2016 |
| ضابط | NATIONAL GRID PARTNERS LIMITED | — | نشط | 01/05/2026 – 01/03/2016 |
| ضابط | NATIONAL GRID PARTNERS LIMITED | — | نشط | 01/05/2026 – 01/03/2016 |
| ضابط | NATIONAL GRID ENERGY METERING LIMITED | — | نشط | 05/05/2026 – 24/03/2016 |
| ضابط | NATIONAL GRID WILLIAM LIMITED | — | نشط | 26/05/2026 – 18/02/2016 |
| ضابط | NATIONAL GRID IFA 2 LIMITED | — | نشط | 09/05/2026 – 31/03/2016 |
| ضابط | NATIONAL GRID IFA 2 LIMITED | — | نشط | 09/05/2026 – 17/07/2014 |
| ضابط | NATIONAL GRID VIKING LINK LIMITED | — | نشط | 10/05/2026 – 24/06/2014 |
| ضابط | NATIONAL GRID VIKING LINK LIMITED | — | نشط | 10/05/2026 – 31/03/2016 |
| ضابط | THE NATIONAL GRID GROUP QUEST TRUSTEE COMPANY LIMITED | 🇬🇧United Kingdom | التصفية | 01/01/2026 – 09/03/2016 |
| ضابط | NG NOMINEES LIMITED | 🇬🇧United Kingdom | التصفية | 01/01/2026 – 01/03/2016 |
| ضابط | NATIONAL GRID ELECTRICITY GROUP TRUSTEE LIMITED | — | نشط | 19/05/2026 – 01/03/2016 |
| ضابط | NGC EMPLOYEE SHARES TRUSTEE LIMITED | 🇬🇧United Kingdom | التصفية | 17/12/2025 – 17/03/2016 |
| ضابط | NATIONAL GRID NORTH SEA LINK LIMITED | — | نشط | 19/05/2026 – 30/11/2013 |
| ضابط | NEMO LINK LIMITED | — | نشط | 18/05/2026 – 30/11/2013 |
| ضابط | NATIONAL GRID INTERCONNECTOR HOLDINGS LIMITED | — | نشط | 18/05/2026 – 29/05/2013 |
| ضابط | NATIONAL GRID VENTURES LIMITED | — | نشط | 19/05/2026 – 30/11/2013 |
| ضابط | NATIONAL GRID WILLIAM LIMITED | — | نشط | 26/05/2026 – 04/11/2014 |
| ضابط | CARBON SENTINEL LIMITED | — | نشط | 19/05/2026 – 01/02/2013 |
| ضابط | NGP(IM7S)SUB LIMITED | 🇬🇧United Kingdom | تم حلها | 25/05/2026 – حاضر |
| ضابط | NATIONAL GRID INTERCONNECTOR HOLDINGS LIMITED | — | نشط | 18/05/2026 – 31/03/2016 |
| ضابط | NEMO LINK LIMITED | — | نشط | 18/05/2026 – 01/03/2016 |
| ضابط | CARBON SENTINEL LIMITED | — | نشط | 19/05/2026 – 31/03/2016 |
| ضابط | NATIONAL GRID VENTURES LIMITED | — | نشط | 19/05/2026 – 31/03/2016 |
| ضابط | NATIONAL GRID NORTH SEA LINK LIMITED | — | نشط | 19/05/2026 – 31/03/2016 |
| ضابط | NATIONAL GRID TWENTY SEVEN LIMITED | — | نشط | 20/05/2026 – 18/02/2016 |
| ضابط | NATIONAL GRID TWENTY EIGHT LIMITED | — | نشط | 20/05/2026 – 18/02/2016 |
| ضابط | NATIONAL GRID TWENTY-FIVE LIMITED | — | تم حلها | 26/05/2026 – 08/03/2016 |
| ضابط | NATGRIDTW1 LIMITED | — | نشط | 24/05/2026 – 08/03/2016 |
| ضابط | STARGAS NOMINEES LIMITED | 🇬🇧United Kingdom | نشط | 08/01/2026 – 08/03/2016 |
| ضابط | NG NOMINEES LIMITED | 🇬🇧United Kingdom | التصفية | 01/01/2026 – 01/03/2016 |
| ضابط | GRAIN LNG LIMITED | 🇬🇧United Kingdom | نشط | 10/12/2025 – 01/03/2016 |
