Quantcast is a technology company specialized in real-time advertising and audience measurement. As the pioneer of direct audience measurement in 2006, Quantcast has the most in-depth understanding of digital audiences across the Web, allowing marketers and publishers to make the smartest choices as they buy and sell the most effective targeted advertising on the market. More than 1,000 brands rely on Quantcast for real-time advertising.

As the leader in Big Data for the digital advertising industry, Quantcast directly measures more than 100 million Web destinations, incorporates over 2 trillion new data records every month and continuously processes as much as 30 petabytes of data every day. Quantcast is headquartered in San Francisco and is backed by Founders Fund, Polaris Venture Partners and Cisco Systems.