Metamarkets is the leading provider of interactive analytics for the $30B programmatic marketing industry, and the inventor of the Druid open-source data store. Metamarkets enables thousands of users around the globe to visually explore trends across trillions of media transactions via a massively parallelized, distributed platform.  Customers, including AOL, Twitter and Yahoo!, rely on Metamarkets’ always-on infrastructure for real-time visibility into data streams exceeding millions of events per second.  With offices in San Francisco and New York, Metamarkets is backed by Khosla Ventures, Data Collective, IA Ventures, and True Ventures.