| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CORPRO GROUP LIMITED | SC180829 | 01/11/2013 | 23/06/2017 | One Red Flag |
| CORPRO SYSTEMS LIMITED | SC110438 | 01/11/2013 | 27/06/2017 | Bronze |
| OMEGA WELL MONITORING LIMITED | SC192323 | 01/11/2013 | 27/06/2017 | Silver |
| RESERVOIR GROUP CORING LIMITED | SC394385 | 01/11/2013 | 27/06/2017 | One Red Flag |
| RESERVOIR GROUP LIMITED | SC311980 | 05/11/2013 | 23/06/2017 | Silver |
| STORECORE LIMITED | 02784918 | 01/11/2013 | 26/06/2017 | Dissolved |
| STRATUM RESERVOIR PETROPHYSICS (UK), LTD. | SC159306 | 01/11/2013 | 27/06/2017 | One Red Flag |
| WELLTOOLS LIMITED | SC259046 | 01/11/2013 | 14/06/2017 | Not Trading |
| WELLVENTION LIMITED | SC367516 | 05/11/2013 | 26/06/2017 | Silver |