| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Energy Markets Ltd | 03796569 | 25/06/1999 | Dissolved |
| Harrington & Associates Energy Consulting Ltd | 03376276 | 01/02/1998 | Dissolved |
| ISIS VENTURES INTERNATIONAL LIMITED | 03267710 | 31/10/1996 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| IGEM HOUSE LTD | 03093169 | 22/09/2010 | 22/04/2014 | Bronze |
| PHOENIX ENERGY GROUP LTD | NI032809 | 15/02/2010 | 12/02/2018 | Bronze |
| SUTTON GRAMMAR SCHOOL TRUST | 07633715 | 01/06/2015 | 20/09/2022 | Silver |