| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CAYTHORPE GAS STORAGE LIMITED | 05283117 | 01/08/2020 | Amber |
| CENTRICA ENERGY STORAGE LIMITED | 03294124 | 01/08/2020 | Bronze |
| CENTRICA HYDROGEN INNOVATIONS LIMITED | 06795997 | 03/06/2024 | Silver |
| CENTRICA OFFSHORE UK LIMITED | 04248952 | 01/08/2020 | Bronze |
| CENTRICA STORAGE HOLDINGS LIMITED | 04573558 | 26/03/2021 | Silver |
| HIIROC LIMITED | 11925215 | 20/06/2024 | Amber |
| HUMBER ENERGY BOARD LIMITED | 15833528 | 04/10/2024 | Amber |
| SPIRIT ENERGY LIMITED | 10854461 | 14/07/2021 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CENTRICA ONSHORE PROCESSING UK LIMITED | 04037670 | 30/07/2021 | 14/09/2023 | Dissolved |