Association of National Advertisers
The Association of National Advertisers (ANA) represents the marketing community in the United States. Its headquarters is in New York City and it has another office in Washington, D.C. ANA's membership include over 1,600 companies with 40,000 brands that collectively spend over 400 billion dollars in marketing communications and advertising.
Source: Wikipedia — Association of National Advertisers (CC BY-SA 4.0)