| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CFA INSTITUTE | FC023596 | 01/09/2019 | Gold |
| ENI S.P.A. | FC031342 | 08/05/2014 | Dissolved |
| KARINA LITVACK ADVISORY SERVICES LIMITED | 08517732 | 07/05/2013 | Dissolved |
| REVENUE WATCH UK | 08233701 | 28/09/2012 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CHAPTER ZERO LIMITED | 12062028 | 20/06/2019 | 03/05/2021 | One Red Flag |
| ENQUEST PLC | 07140891 | 15/09/2023 | 18/12/2023 | Bronze |
| NATURAL RESOURCE CHARTER LIMITED | 07645971 | 05/05/2013 | 07/07/2014 | Silver |
| YACHAD LTD | 07638945 | 01/01/2015 | 29/05/2019 | Gold |