| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| AVON ENERGY PARTNERS LIMITED | 03194917 | 27/09/1999 | Dissolved |
| Foray 1103 Ltd | 03542873 | 23/04/1999 | Dissolved |
| Midlands Electricity International Ltd | 02855831 | 02/03/1998 | Dissolved |
| Midlands Hydrocarbons (Pakistan) Ltd | 03095028 | 09/12/1998 | Dissolved |
| Midlands Investments Ltd | 02475225 | 02/01/1997 | Dissolved |
| Midlands Power (Bangladesh) Ltd | 03095037 | 09/12/1998 | Dissolved |
| Midlands Power (One) Ltd | 02855919 | 01/01/1999 | Dissolved |
| Midlands Power (Pakistan) Ltd | 03095065 | 09/12/1998 | Dissolved |
| Midlands Power (Philippines) Ltd | 02814645 | 09/12/1998 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AQUILA POWER INVESTMENTS LIMITED | 03600770 | 12/12/2000 | 31/01/2003 | Dissolved |
| AQUILA STERLING LIMITED | 04391954 | 11/03/2002 | 31/01/2003 | Dissolved |
| AVON ENERGY PARTNERS HOLDINGS | 03196714 | 27/09/1999 | 31/01/2003 | Dissolved |
| Aquila Transport Ltd | 03440992 | 11/11/1997 | 31/01/2003 | Dissolved |
| E.ON ENERGY UK LIMITED | 02820647 | 30/03/2001 | 31/01/2003 | Dissolved |
| E.ON RETAIL LIMITED | 02878650 | 02/01/1997 | 31/01/2003 | Dissolved |
| E.ON UK POWER TECHNOLOGY LIMITED | 02878651 | 02/01/1997 | 31/01/2003 | Dissolved |
| ELECTRICITY PENSIONS LIMITED | 02416242 | 07/01/1997 | 31/01/2003 | One Red Flag |
| ELECTRICITY PENSIONS TRUSTEE LIMITED | 02479327 | 07/01/1997 | 31/01/2003 | Bronze |
| EQUANS ENERGY SERVICES UK LIMITED | 02665215 | 10/07/1998 | 31/01/2003 | Bronze |
| INTERNATIONAL POWER (UCH) | 03095019 | 09/12/1998 | 31/01/2003 | Dissolved |
| INTERNATIONAL POWER (UCH) SERVICES LIMITED | 03141679 | 09/12/1998 | 31/01/2003 | Gold |
| MAGNOLIA POWER (TPL) | 02579333 | 09/12/1998 | 31/01/2003 | Dissolved |
| MIDLANDS ELECTRICITY GROUP LIMITED | 02706727 | 01/01/2002 | 31/01/2003 | Dissolved |
| MIDLANDS GENERATION (OVERSEAS) LIMITED | 02772596 | 09/12/1998 | 31/01/2003 | Dissolved |
| MIDLANDS POWER (UK) LIMITED | 02251099 | 09/12/1998 | 31/01/2003 | Dissolved |
| MIDLANDS POWER INTERNATIONAL LIMITED | 02618314 | 02/01/1997 | 31/01/2003 | Dissolved |
| MIDLANDS SALES LIMITED | 02573405 | 08/01/1997 | 31/01/2003 | Dissolved |
| MR ELECTRIC LIMITED | 03402410 | 11/07/2002 | 31/01/2003 | Dissolved |
| Midlands Electricity (Share Scheme Trustees) Limited | 02525166 | 01/02/1999 | 31/01/2003 | Dissolved |
| Midlands Power (Consultancy) Ltd | 02585916 | 09/12/1998 | 31/01/2003 | Dissolved |
| Midlands Power (Europe) Ltd | 02776789 | 05/12/1998 | 31/01/2003 | Dissolved |
| Midlands Power (H P L) Ltd | 02598875 | 09/12/1998 | 31/01/2003 | Dissolved |
| Midlands Power (Indus) Ltd | 03094893 | 09/12/1998 | 31/01/2003 | Dissolved |
| NATIONAL GRID ELECTRICITY DISTRIBUTION (WEST MIDLANDS) PLC | 03600574 | 29/05/2001 | 31/01/2003 | Silver |
| NATIONAL GRID ELECTRICITY DISTRIBUTION MIDLANDS LIMITED | 02366928 | 02/01/1997 | 31/01/2003 | Silver |
| POWERGEN UK LIMITED | 02878653 | 02/01/1997 | 31/01/2003 | Dissolved |
| Peregrine Midlands Ltd | 03187581 | 01/09/1997 | 13/07/2001 | Dissolved |
| Powerline Energy Services Ltd | 02738926 | 08/06/1999 | 31/01/2003 | Dissolved |
| SISYPHUS QUEBEC LIMITED | 02680737 | 18/02/2000 | 31/01/2003 | Dissolved |
| WPD MIDLANDS NETWORKS CONTRACTING LIMITED | 02710658 | 11/07/2002 | 31/01/2003 | Dissolved |
| WPD MIDLANDS PROPERTIES LIMITED | 03600545 | 29/05/2001 | 31/01/2003 | Dissolved |