Beckon

Founded in 2011 with a mission to create elegant, intuitive software to help marketers understand and beautifully communicate the business impact of everything they do.

Klout

Klout allows users to track the impact of their opinions, links and recommendations across your social graph. Data is collected about the content users create, how people interact with that content and the size and composition of their networks. Klout identifies influencers and provides tools for influencers to monitor their influence.

AppNexus

AppNexus provides a comprehensive, state-of-the-art real-time bidding platform with access to the major display advertising exchanges and aggregators.