| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| A Full Head of Steam Ltd | 03788740 | 26/07/1999 | Dissolved |
| Birston Land Ltd | 04995679 | 01/02/2007 | Dissolved |
| Cafe De Ville Ltd | 03199478 | 16/05/1996 | Dissolved |
| Darlington Business Centres Ltd | 02016019 | 31/12/1990 | Dissolved |
| Felster Land Ltd | 04788683 | 06/04/2004 | Dissolved |
| Flocliffe Enterprises Ltd | 01721515 | 14/09/1991 | Dissolved |
| Goundry Estates Ltd | 04308465 | 22/10/2001 | Dissolved |
| Goundry Estates Ltd | 04308465 | 22/10/2001 | Dissolved |
| Hitched-Up Marketing Ltd | 03788948 | 14/06/1999 | Dissolved |
| IMP HOTEL LIMITED | 01319416 | 11/07/1991 | Bronze |
| Mordent Systems Ltd | 03491025 | 12/01/1998 | Dissolved |
| Mordent Systems Ltd | 03491025 | 12/01/1998 | Dissolved |
| Northern Sky Music Ltd | 03625893 | 16/11/1999 | Dissolved |
| OCCUMAX LIMITED | 03172560 | 14/03/1996 | Dissolved |
| Parker,A C,Ltd | 02041665 | 31/12/1990 | Dissolved |
| S. P. GAINFORD LIMITED | 01832160 | 02/05/1991 | Dissolved |
| THE AMERICAN DINING CAR COMPANY LIMITED | 03047413 | 19/04/1995 | Silver |
| VELTMAN LAND LIMITED | 05177389 | 12/07/2004 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| County Durham Emergency Volunteers | 03060723 | 24/05/1995 | 30/08/2000 | Dissolved |