Founded in 1917, the American Association of Advertising Agencies (AAAA) is the national trade association representing the advertising agency business in the
United States.

 Its membership produces approximately 80 percent of the total advertising volume placed by agencies nationwide. Although virtually all of the large, multi-national agencies are members of the AAAA, more than 60 percent of our membership bills less than $10 million per year. 

The AAAA is a management-oriented association that offers its members the services, expertise and information regarding the advertising agency business. 

Source: American Association of Advertising Agencies