| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Agentbook Ltd | 03959548 | 22/12/2000 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| E R L Environmental Resources Ltd | 02216105 | 17/07/1991 | 01/05/2001 | Dissolved |
| ENVIRONMENTAL RESOURCES MANAGEMENT LIMITED | 01014622 | 17/07/1992 | 01/05/2001 | Silver |
| ERM (OVERSEAS HOLDINGS) LIMITED | 03698847 | 15/01/1999 | 01/05/2001 | Bronze |
| ERM EURASIA LIMITED | 02451345 | 17/07/1991 | 01/05/2001 | Amber |
| ERM HOLDINGS LIMITED | 04067993 | 31/01/2001 | 21/02/2006 | Dissolved |
| ERM INTERNATIONAL SERVICES LIMITED | 03771741 | 15/06/1999 | 20/04/2000 | N/A |
| ERM LIMITED | 03128071 | 20/11/1995 | 01/05/2001 | Silver |
| ERM OVERSEAS LIMITED | 01621654 | 17/07/1991 | 01/05/2001 | Dissolved |
| ERM-ASIA PACIFIC HOLDINGS, LIMITED | 03067139 | 12/06/1995 | 01/06/2001 | Silver |
| ERM-EUROPE,LTD | 02137137 | 31/12/1991 | 01/05/2001 | Bronze |
| Enviromation Ltd | 03200830 | 20/05/1996 | 01/05/2001 | Dissolved |
| Environmental Holdings Ltd | 01748103 | 17/07/1991 | 01/05/2001 | Dissolved |
| Environmental Resource Management Ltd | 02880493 | 08/06/1994 | 01/05/2001 | Dissolved |
| Environmental Resources Ltd | 02874210 | 08/06/1994 | 01/05/2001 | Dissolved |
| Environmental Resources Management (Scotland) Ltd | SC147214 | 29/10/1993 | 01/05/2001 | Dissolved |
| Erm - Enviroclean Ltd. | 02614988 | 28/05/1991 | 01/05/2001 | Dissolved |
| Erm Asia Pacific Pty. Ltd. | 03768756 | 15/06/1999 | 01/05/2001 | Dissolved |
| Erm Energy Ltd | 01188219 | 17/07/1991 | 01/05/2001 | Dissolved |
| Erm Management Systems Ltd | 01952801 | 08/06/1994 | 01/05/2001 | Dissolved |
| Erm Planning Ltd | 02540823 | 06/09/1991 | 01/05/2001 | Dissolved |
| Erm Risk Ltd | 03768749 | 15/06/1999 | 01/05/2001 | Dissolved |
| Erm Social Strategies Ltd | 01782985 | 08/06/1994 | 01/05/2001 | Dissolved |
| Erm Waste Management Ltd | 01156022 | 08/06/1994 | 01/05/2001 | Dissolved |
| Four Elements (Holdings & Management) Ltd | 02423021 | 15/09/1992 | 01/05/2001 | Dissolved |
| Four Elements Ltd | 02423019 | 15/09/1992 | 01/05/2001 | Dissolved |
| IMPAX ENVIRONMENTAL MARKETS PLC | 04348393 | 08/01/2002 | 03/10/2003 | Silver |
| Resource Management International Ltd | 01589507 | 17/07/1991 | 01/05/2001 | Dissolved |
| THE QUARTERLY HIGH INCOME TRUST PLC | 02691478 | 07/12/1992 | 23/08/2002 | Dissolved |