| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| DURHAM COUNTY WASTE MANAGEMENT COMPANY LIMITED | 02651168 | 04/10/2010 | Dissolved |
| NORTH EAST ENTERPRISE COMPANY LIMITED | 07936333 | 29/05/2012 | Dissolved |
| PREMIER WASTE MANAGEMENT LIMITED | 03616068 | 04/10/2010 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| DURHAM VILLAGES REGENERATION LIMITED | 04305805 | 01/07/2009 | 24/01/2020 | Amber |
| SILVERSTONE TECHNOLOGY CLUSTER LIMITED | 10324273 | 12/11/2021 | 08/11/2023 | Silver |
| VISIT COUNTY DURHAM | 05756346 | 10/07/2009 | 23/01/2020 | Gold |