| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CORPRO GROUP LIMITED | SC180829 | 25/06/1999 | 01/11/2013 | One Red Flag |
| CORPRO SYSTEMS LIMITED | SC110438 | 25/06/1999 | 01/11/2013 | Bronze |
| INFOASSET LIMITED | 04381383 | 16/10/2008 | 19/03/2014 | Gold |
| RESERVOIR GROUP CORING LIMITED | SC394385 | 11/04/2011 | 01/11/2013 | One Red Flag |
| RESERVOIR GROUP LIMITED | SC311980 | 16/05/2007 | 05/11/2013 | Silver |
| STORECORE LIMITED | 02784918 | 11/04/2008 | 01/11/2013 | Dissolved |
| STRATUM RESERVOIR PETROPHYSICS (UK), LTD. | SC159306 | 17/08/2001 | 01/11/2013 | One Red Flag |
| WELLTOOLS LIMITED | SC259046 | 25/11/2011 | 01/11/2013 | Not Trading |
| WELLVENTION LIMITED | SC367516 | 18/11/2011 | 05/11/2013 | Silver |