| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Edison Mission Overseas | 03829346 | 17/08/1999 | Dissolved |
| Eme International Dragon Ltd | 03982255 | 20/04/2000 | Dissolved |
| First Hydro Renewables (Cowl) Ltd | 04195159 | 05/04/2001 | Dissolved |
| South Australian Holdings Ltd | 03888619 | 01/12/1999 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CARESALE SERVICES LIMITED | 03749079 | 20/04/1999 | 23/02/2005 | Dissolved |
| EDISON FIRST POWER LIMITED | FC021831 | 03/06/1999 | 23/02/2005 | Dissolved |
| EME FINANCE UK LIMITED | 03793004 | 16/06/1999 | 23/02/2005 | Dissolved |
| Eme Ascot | 04094244 | 17/10/2000 | 14/01/2005 | Dissolved |
| Eme Atlantic Holdings | 04029452 | 04/07/2000 | 23/02/2005 | Dissolved |
| Eme Buckingham | 04094862 | 18/10/2000 | 23/02/2005 | Dissolved |
| Energy Generation Finance U K Ltd | 03793027 | 16/06/1999 | 16/12/2004 | Dissolved |
| FHH (GUERNSEY) LIMITED | FC025237 | 26/05/2004 | 16/12/2004 | Dissolved |
| FHH NO.1 LIMITED | 04984508 | 03/12/2003 | 16/12/2004 | Bronze |
| FHH NO.2 LIMITED | 04984510 | 03/12/2003 | 16/12/2004 | Dissolved |
| FIRST HYDRO FINANCE PLC | 03085928 | 25/08/1998 | 16/12/2004 | Gold |
| FIRST HYDRO HOLDINGS COMPANY | 03140052 | 24/11/1998 | 16/12/2004 | Bronze |
| FIRST HYDRO RENEWABLES LIMITED | 04194499 | 04/04/2001 | 23/02/2005 | Dissolved |
| First Hydro Renewables Number 2 Ltd | 04135170 | 21/06/2001 | 23/02/2005 | Dissolved |
| IPM EAGLE SERVICES LIMITED | 02703635 | 25/08/1998 | 16/12/2004 | Dissolved |
| IPM EAGLE TRUSTEE COMPANY LIMITED | 04050878 | 07/08/2000 | 28/09/2005 | Dissolved |
| IPM ENERGY COMPANY (UK) LIMITED | 02500718 | 25/08/1998 | 16/12/2004 | Silver |
| IPM ENERGY LIMITED | 02704476 | 25/08/1998 | 16/12/2004 | Silver |
| IPM HYDRO (UK) LIMITED | 03123340 | 24/11/1998 | 16/12/2004 | Dissolved |
| IPM MARKETING AND SERVICES LIMITED | 03749201 | 21/04/1999 | 16/12/2004 | Dissolved |
| IPM OPERATIONS AND MAINTENANCE LIMITED | 03139053 | 24/11/1998 | 16/12/2004 | Dissolved |
| LYB GENERATION HOLDINGS | 03317486 | 24/11/1998 | 16/12/2004 | Dissolved |
| LYB VICTORIA GENERATION LIMITED | 03317485 | 24/11/1998 | 16/12/2004 | Dissolved |
| MAJESTIC ENERGY | 03732369 | 19/03/1999 | 16/12/2004 | Dissolved |
| MAPLEKEY HOLDINGS LIMITED | 03792960 | 16/06/1999 | 23/02/2005 | Dissolved |
| MAPLEKEY UK FINANCE LIMITED | 03792979 | 16/06/1999 | 23/02/2005 | Not Trading |
| MAPLEKEY UK LIMITED | 03749198 | 21/04/1999 | 23/02/2005 | Not Trading |
| NRG FIRST POWER HOLDINGS I | 03758394 | 21/04/1999 | 23/02/2005 | Dissolved |
| NRG FIRST POWER HOLDINGS II | 03913098 | 28/03/2000 | 23/02/2005 | Dissolved |
| PILGRIM HOUSE (ROTHERHITHE) MANAGEMENT COMPANY LIMITED | 03471335 | 09/10/2001 | 01/06/2006 | Gold |
| Pride Hold | 02351876 | 25/08/1998 | 23/02/2005 | Dissolved |
| RAPID ENERGY LIMITED | 03039628 | 25/08/1998 | 16/12/2004 | Dissolved |
| Redbill Contracts Ltd | 03732362 | 20/04/1999 | 23/02/2005 | Dissolved |
| VGL (GUERNSEY) LIMITED | FC025238 | 26/05/2004 | 16/12/2004 | Dissolved |