About COSC

To promote cooperation among state chambers of commerce by interchange of views regarding the policies and practices among existing state chambers of commerce or organizations functioning as such; to strengthen existing state chambers of commerce; and to promote the extensions of the state chamber of commerce movement throughout the country.

The idea of a national association of state chambers of commerce was originally discussed at a roundtable session on November 1, 1923, at Hotel Gibson in Cincinnati, Ohio. Among the states represented at that meeting were Connecticut, Massachusetts, Missouri, Wisconsin, Florida, Oregon, Pennsylvania, Illinois, Iowa, Ohio, Indiana, and the Chamber of Commerce of the United States. The first annual meeting of COSC, then called the National Association of State Chambers of Commerce, was held on October 9, 1924, in Pittsburgh, Pennsylvania. 


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