Quantcast is an audience measurement and targeting company. The pioneer of direct audience measurement, we start with the industry’s most in-depth understanding of digital audiences to help marketers and publishers buy and sell the most effective targeted advertising and drive conversions through the full funnel. Our products let publishers match their audience to the exact consumers an advertiser wants to reach with impression level targeting. Ranked Fast Company‘s #3 Most Innovative Company on the Web and the Overall Winner of AlwaysOn’s Global 250 Top Private Companies, Quantcast is used by the world’s leading advertisers, the top 10 media agencies and 100+ million web destinations. Launched in 2006, Quantcast is headquartered in San Francisco and backed by Founders Fund, Polaris Venture Partners, Revolution Ventures and Cisco Systems.