| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| THE ANGLESEY SEA SALT COMPANY LIMITED | 03284469 | 20/02/2017 | Silver |
| YNYS MON INVESTMENTS LIMITED | 12820943 | 18/08/2020 | Amber |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AUTUMN METERS LIMITED | 12508783 | 10/03/2020 | 23/09/2020 | Dissolved |
| ELECTRICITY NORTH WEST LIMITED | 02366949 | 15/10/2019 | 12/12/2019 | Silver |
| ENFINIUM DEVELOPMENT HOLDINGS LIMITED | 12921512 | 02/10/2020 | 13/01/2022 | Silver |
| ENFINIUM DEVELOPMENTS LIMITED | 12929630 | 05/10/2020 | 13/01/2022 | Bronze |
| ENFINIUM ENERGY 2 LIMITED | SC573334 | 07/01/2021 | 15/06/2021 | Bronze |
| ENFINIUM ENERGY LIMITED | SC286672 | 07/01/2021 | 15/06/2021 | Gold |
| ENFINIUM FERRYBRIDGE 1 LIMITED | 07712297 | 07/01/2021 | 15/06/2021 | Silver |
| ENFINIUM FERRYBRIDGE 2 LIMITED | 09685158 | 07/01/2021 | 15/06/2021 | Silver |
| ENFINIUM HOLDINGS 1 LIMITED | 12958067 | 16/10/2020 | 13/01/2022 | Silver |
| ENFINIUM HOLDINGS 2 LIMITED | 12964297 | 21/10/2020 | 13/01/2022 | Gold |
| ENFINIUM HOLDINGS 3 LIMITED | 12966990 | 22/10/2020 | 13/01/2022 | Silver |
| ENFINIUM HOLDINGS 4 LIMITED | 12970460 | 23/10/2020 | 13/01/2022 | Silver |
| ENFINIUM HOLDINGS 5 LIMITED | 12973689 | 26/10/2020 | 13/01/2022 | Bronze |
| ENFINIUM LIMITED | 07593865 | 04/02/2021 | 17/09/2021 | Silver |
| ENFINIUM SKELTON GRANGE HOLDINGS LIMITED | 11919976 | 07/01/2021 | 15/06/2021 | Gold |
| ENFINIUM SKELTON GRANGE LIMITED | 11922924 | 07/01/2021 | 15/06/2021 | Bronze |
| SPRING METERS LIMITED | 12508576 | 10/03/2020 | 23/09/2020 | Dissolved |
| SUMMER METERS LIMITED | 12508639 | 10/03/2020 | 23/09/2020 | Dissolved |