| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| C R Personnel Services Ltd | 01601947 | 07/05/1991 | Dissolved |
| CLEVELAND PIPEWORK SERVICES LIMITED | 01439180 | 07/05/1991 | One Red Flag |
| Cleveland Engineering Design Services Ltd | 01283645 | 07/05/1991 | Dissolved |
| Cleveland Redpath Engineering Ltd | 01483187 | 07/05/1991 | Dissolved |
| Lawrence-Allison Ltd | 01163357 | 07/05/1991 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| JOHNSON MATTHEY DAVY TECHNOLOGIES INTERNATIONAL LIMITED | 00247298 | 01/11/1999 | 30/04/2011 | Dissolved |
| JOHNSON MATTHEY DAVY TECHNOLOGIES LIMITED | 00635311 | 01/11/1999 | 30/04/2011 | Bronze |
| KVAERNER E&C HOLDINGS LIMITED | 00001125 | 13/01/2000 | 16/11/2001 | Insolvent |
| KVAERNER ENGINEERING SERVICES LIMITED | 02060438 | 07/05/1991 | 01/11/1995 | Insolvent |
| Kvaerner Recruitment Services Ltd | 01266417 | 12/11/1998 | 23/11/1999 | Dissolved |
| Old Las Ltd | 01715664 | 07/05/1991 | 01/11/1995 | Dissolved |
| TRAFALGAR HOUSE OFFSHORE SERVICES LIMITED | SC143877 | 07/05/1993 | 01/11/1995 | Dissolved |
| Trafalgar House Offshore Holdings Ltd | 00949950 | 04/06/1991 | 01/11/1995 | Dissolved |