| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ADVANCED ENERGY MONITORING SYSTEMS LIMITED | 01589111 | 01/03/1998 | 31/03/2003 | Not Trading |
| AECOM DESIGN BUILD LIMITED | 02699219 | 22/01/1993 | 23/04/1997 | Silver |
| BRADFORD CABLE COMMUNICATIONS LIMITED | 02664803 | 21/11/1992 | 17/12/1993 | Dissolved |
| Botan Ltd | 00429595 | 30/09/1992 | 05/11/1993 | Dissolved |
| Esmil Ltd | 02406558 | 30/09/1992 | 01/08/1994 | Dissolved |
| Fospur International Ltd | 00253582 | 30/09/1992 | 05/11/1993 | Dissolved |
| Fospur Ltd | 00937045 | 30/09/1992 | 31/03/1995 | Dissolved |
| KELDA WATER SERVICES LIMITED | 02180706 | 30/09/1994 | 30/06/1997 | Gold |
| THE YORKSHIRE CABLE GROUP LIMITED | 02782818 | 02/08/1993 | 07/06/1996 | Dissolved |
| The M T L Partnership Ltd | 01778698 | 01/11/1993 | 01/07/1996 | Dissolved |
| WHITE ROSE ENVIRONMENTAL OPERATIONS LIMITED | 02428371 | 30/09/1992 | 21/04/1995 | Dissolved |
| Y W Enterprises Ltd | 02180734 | 19/04/1993 | 01/11/1993 | Dissolved |
| YORKSHIRE CABLE COMMUNICATIONS LIMITED | 02490136 | 06/04/1992 | 21/12/1992 | Amber |
| YORKSHIRE WINDPOWER LIMITED | 02528475 | 01/07/1992 | 29/06/1993 | Silver |
| Yorkshire Renewable Energy Ltd | 02507131 | 31/05/1992 | 08/10/1993 | Dissolved |
| Yorkshire Water (China) Ltd | 02354948 | 20/10/1994 | 30/06/1997 | Dissolved |