| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CAMBRIAN RENEWABLE ENERGY LIMITED | 04803358 | 01/08/2019 | 06/03/2020 | Silver |
| CARRINGTON POWER LIMITED | 04706728 | 01/08/2019 | 06/03/2020 | Silver |
| COOLKEERAGH ESB LIMITED | NI042138 | 01/08/2019 | 21/04/2020 | Silver |
| CORBY POWER LIMITED | 02329494 | 01/08/2019 | 06/03/2020 | Gold |
| CROCKAGARRAN WIND FARM LTD | NI065453 | 01/08/2019 | 06/03/2020 | Silver |
| CROCKDUN WINDFARM (NI) LIMITED | NI633987 | 01/08/2019 | 06/03/2020 | Dissolved |
| CURRYFREE WIND FARM LIMITED | NI068191 | 01/08/2019 | 06/03/2020 | Silver |
| DEVON WIND POWER LIMITED | 03536976 | 01/08/2019 | 06/03/2020 | Bronze |
| ECO2 CAMBRIAN LIMITED | 05504383 | 01/08/2019 | 06/03/2020 | Dissolved |
| ELECTRIC IRELAND LIMITED | 07481435 | 01/08/2019 | 14/04/2020 | Dissolved |
| ESB ASSET DEVELOPMENT UK LIMITED | 06925667 | 01/08/2019 | 06/03/2020 | Gold |
| ESB ELECTRIC IRELAND LIMITED | 07481410 | 01/08/2019 | 14/04/2020 | Dissolved |
| ESB GROUP (UK) LIMITED | 04182868 | 01/08/2019 | 06/03/2020 | Amber |
| ESB SOLAR (NORTHERN IRELAND) LIMITED | NI631677 | 01/08/2019 | 06/03/2020 | One Red Flag |
| ESBII UK LIMITED | 04048938 | 01/08/2019 | 06/03/2020 | Silver |
| FACILITY MANAGEMENT UK LIMITED | 04048782 | 01/08/2019 | 06/03/2020 | Gold |
| HUNTER'S HILL WIND FARM LIMITED | NI067362 | 01/08/2019 | 06/03/2020 | Silver |
| KIRK HILL WIND FARM LIMITED | 09172034 | 11/12/2019 | 06/03/2020 | One Red Flag |
| KNOTTINGLEY POWER LIMITED | 05902446 | 01/08/2019 | 06/03/2020 | Silver |
| SELECTUSONLINE LIMITED | 04077163 | 30/08/2001 | 31/03/2003 | Not Trading |
| WEST DURHAM WIND FARM (HOLDINGS) 2 LIMITED | 05654029 | 01/08/2019 | 06/03/2020 | Dissolved |
| WEST DURHAM WIND FARM (HOLDINGS) LIMITED | 06310696 | 01/08/2019 | 06/03/2020 | Dissolved |
| WEST DURHAM WINDFARM LIMITED | 03658399 | 01/08/2019 | 06/03/2020 | Silver |