| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Council of Museums in Wales(The) | 01594138 | 01/04/2003 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| COLLECTIONS TRUST | 01300565 | 16/05/2003 | 27/03/2009 | Silver |
| INTERNATIONAL COUNCIL OF MUSEUMS (UNITED KINGDOM) | 01683625 | 13/11/2008 | 01/04/2010 | Gold |
| MENTRAU AMGUEDDFEYDD AC ORIELAU CENEDLAETHOL CYMRU / NATIONAL MUSEUMS & GALLERIES OF WALES ENTERPRISES LIMITED | 02449244 | 14/04/2003 | 08/08/2010 | One Red Flag |
| NATIONAL COAL MINING MUSEUM FOR ENGLAND TRUST LTD | 01702426 | 30/07/2004 | 08/08/2010 | Silver |