| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| AISS LTD | 08230819 | 27/09/2012 | Silver |
| NATIONAL VULCAN ENGINEERING INSURANCE GROUP LIMITED | NF001459 | 14/11/1966 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Aldway Nvsp Ltd | 01832877 | 24/05/1992 | 15/09/1997 | Dissolved |
| B. E. INSPECTION LIMITED | 01473734 | 12/12/1997 | 18/12/1998 | Dissolved |
| COBCO (222) LIMITED | 00244138 | 19/04/1991 | 19/03/1998 | Dissolved |
| Hazard Management Ltd | 02592686 | 18/03/1993 | 31/01/1996 | Dissolved |
| NATIONAL VULCAN ENGINEERING INSURANCE GROUP LIMITED | 00001471 | 10/06/1992 | 26/07/1999 | Dissolved |
| RELECTRONIC-REMECH LTD. | 02585109 | 13/07/1993 | 17/08/1999 | Dissolved |
| SAFETY ASSESSMENT FEDERATION LIMITED | 03078710 | 06/07/1995 | 13/10/1995 | Silver |
| Vulcan Boiler Engineering Services Ltd | 00228316 | 24/05/1992 | 26/07/1999 | Dissolved |