| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Ashact Dames & Moore Projects Ltd | 02398440 | 28/04/1995 | Dissolved |
| Daysemi Limited | 02075729 | 31/10/1991 | Dissolved |
| Northern Energetics Co Ltd | 03008343 | 12/09/1996 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| D M G Consulting Ltd | 01939301 | 28/04/1995 | 16/05/1997 | Dissolved |
| DAMES & MOORE LIMITED | 02223084 | 20/11/1996 | 31/12/1999 | Dissolved |
| Daamoore Research | 02327558 | 12/12/1992 | 01/12/1999 | Dissolved |
| ERM EURASIA LIMITED | 02451345 | 08/07/2005 | 01/09/2013 | Amber |
| O'BRIEN-KREITZBERG & ASSOCIATES LIMITED | 02899945 | 11/09/1995 | 01/12/1999 | Dissolved |
| REVERSE ENGINEERING LIMITED | 02744578 | 12/09/1996 | 07/04/2004 | Silver |