| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Darlington Partnership | 04132608 | 20/11/2002 | Dissolved |
| The Sixth Form Colleges Association Limited | 02841695 | 13/11/1993 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AGE UK NORTH YORKSHIRE & DARLINGTON | 06817492 | 12/02/2009 | 17/09/2015 | Bronze |
| BLACKWELL GRANGE GOLF CLUB LIMITED | 00794004 | 07/02/2014 | 02/02/2017 | Bronze |
| HUMANTICS COMMUNITY INTEREST COMPANY | 06724261 | 15/10/2008 | 01/12/2011 | Dissolved |
| LONGFIELD ACADEMY TRUST | 07700556 | 11/07/2011 | 05/12/2013 | Dissolved |
| RENAISSANCE THEATRE TRUST COMPANY LIMITED | 00680112 | 12/09/1991 | 13/11/1991 | Dissolved |
| THE WORK PLACE (AYCLIFFE) LIMITED | 06420612 | 07/11/2007 | 07/07/2010 | One Red Flag |