advertising network, and a custom exchange.

AppNexus also provides a digital advertising delivery platform that enables publisher clients to maximize revenue across various demand sources, AppNexus Publisher Suite that powers advertisement serving, planning and forecasting, diverse marketplace sales, and direct campaign management solutions, PriceCheck, a header bidding solution for banner, video, and interstitial advertising units, and AppNexus Apps program, an application platform for third-party technology vendors and existing customers to build features for their own clients and reach new audiences.

Brian O'Kelley and Mike Nolet founded AppNexus in September 2007, with its headquarters in New York City and additional offices in several cities in the United States and other countries.