| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Independent Power Generators Holdings Ltd | 02588559 | 05/03/1992 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| A H S Ltd | 01036688 | 02/08/1991 | 30/06/2001 | Dissolved |
| ASSOCIATED ELECTRICITY SUPPLIES LIMITED | 02223002 | 01/08/1991 | 30/06/2001 | Dissolved |
| BELGIAN-LUXEMBOURG CHAMBER OF COMMERCE IN GREAT BRITAIN (INCORPORATED) | 00129632 | 03/09/1991 | 04/05/1998 | Bronze |
| BRITISH FRANCHISE ASSOCIATION | 01341267 | 17/12/1990 | 01/12/1993 | Gold |
| CCF & PARTNERS ASSET MANAGEMENT LIMITED | 02477040 | 05/03/1992 | 24/07/1997 | Gold |
| E T S G Ltd | 02531063 | 15/08/1991 | 31/12/1999 | Dissolved |
| ECONOMIC ENTERPRISES (DEVELOPMENTS) LIMITED | 01658122 | 15/12/1991 | 14/01/1992 | Amber |
| ECONOMIC ENTERPRISES LIMITED | 01372224 | 12/06/1991 | 22/12/2015 | Insolvent |
| GENERAL UTILITIES HOLDINGS LIMITED | 02263030 | 02/08/1991 | 18/04/1994 | Dissolved |
| SEA ADMINISTRATION LIMITED | 04055741 | 18/08/2000 | 31/12/2004 | Dissolved |
| SUTTON BRIDGE POWER GENERATION | 02586357 | 27/02/1992 | 14/12/1995 | Bronze |
| Sheffield Heat & Power Co | 02157127 | 05/10/1987 | 26/09/2000 | Dissolved |
| TOTALENERGIES GAS & POWER LIMITED | 02172239 | 11/07/1991 | 02/02/1996 | Silver |
| Top Management Partnership Ltd (The) | 01056590 | 31/10/1990 | 06/09/1996 | Dissolved |
| Uk Electric Power Ltd | 00172268 | 30/10/1998 | 18/04/2000 | Dissolved |
| VEOLIA ENERGY & UTILITY SERVICES UK LIMITED | 02585759 | 26/02/1993 | 31/12/1999 | Gold |
| VEOLIA ENERGY UK LIMITED | 00883131 | 02/08/1991 | 31/05/1999 | Amber |