OpenX
"OpenX is a global leader in web and mobile advertising technology. OpenX?s vision is to unleash the full economic potential of digital media companies through superior advertising technology. OpenX provides a comprehensive platform for publishers that includes one of the first and largest programmatic ad exchanges, Demand Fusion supply side platform technology and fully featured ad serving. All these products are multiscreen and OpenX also offers one of the industry?s most robust SDKs for app developers.
OpenX is headquartered in Los Angeles and is backed by leading investors including Accel Partners, Index Ventures, SAP Ventures, and Samsung Venture Investment Corporation."