| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CRC-EVANS PIPELINE INTERNATIONAL, INC. | FC023809 | 03/04/2002 | Bronze |
| Offshore Pipeline Services Ltd | 02400480 | 03/07/1991 | Dissolved |
| Pipetex Ltd | 02095241 | 18/12/1991 | Dissolved |
| Scaleadapt Limited | 02781260 | 28/03/1993 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CRC-EVANS OFFSHORE LIMITED | SC313377 | 23/07/2007 | 26/09/2008 | Silver |
| P I H HOLDINGS LIMITED | 03335609 | 28/05/1997 | 18/08/2008 | Amber |
| PIH KAZAKHSTAN LIMITED | 04036329 | 28/03/2001 | 18/08/2008 | Dissolved |
| PIH SERVICES LIMITED | 03814515 | 30/07/1999 | 18/08/2008 | One Red Flag |
| PIPELINE INDUCTION HEAT LIMITED | 01478556 | 19/03/1992 | 18/08/2008 | One Red Flag |
| THE PIPELINE INDUSTRIES GUILD LIMITED | 02563351 | 16/09/1991 | 21/05/1992 | Gold |
| UNIVERSAL INSPECTION SYSTEMS LIMITED | SC125587 | 06/10/2006 | 25/09/2008 | Dissolved |