| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ESB ASSET DEVELOPMENT UK LIMITED | 06925667 | 06/03/2020 | Gold |
| ESB GROUP (UK) LIMITED | 04182868 | 11/01/2023 | Amber |
| ESB SOLAR (NORTHERN IRELAND) LIMITED | NI631677 | 06/03/2020 | One Red Flag |
| ESBII UK LIMITED | 04048938 | 20/03/2023 | Silver |
| FIVE ESTUARIES OFFSHORE WIND FARM LIMITED | 12292474 | 21/03/2024 | Amber |
| GWYNT GLAS (ESB) HOLDING COMPANY LTD | 15576333 | 19/03/2024 | Amber |
| GWYNT GLAS OFFSHORE WIND FARM LIMITED | 13499295 | 07/05/2024 | Amber |
| HAVBREDEY LIMITED | SC717714 | 09/05/2023 | Gold |
| MALIN SEA WIND LIMITED | 14766347 | 29/03/2023 | Silver |
| SHETLAND OFFSHORE WIND LIMITED | 14306989 | 19/08/2022 | Silver |
| SPIORAD NA MARA LIMITED | SC717716 | 09/05/2023 | Silver |
| WESTERN ISLES OFFSHORE WIND N2 LIMITED | 14234278 | 09/05/2023 | Bronze |
| WESTERN ISLES OFFSHORE WIND N4 LIMITED | 14234236 | 09/05/2023 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| INSTITUTION OF AGRICULTURAL ENGINEERS(THE) | 00648041 | 10/05/2005 | 08/05/2008 | Silver |
| REG GREENBURN LIMITED | SC508240 | 19/07/2017 | 14/01/2019 | Silver |
| REG KNOCKODHAR LIMITED | SC566750 | 19/07/2017 | 14/01/2019 | Amber |
| THAMESIDE ENERGY RECOVERY FACILITY LIMITED | 11144508 | 12/07/2022 | 23/09/2022 | Amber |