OpenX

Leading independent SSP focused on premium publishers

OpenX is a leading independent supply-side platform (SSP) that connects premium publishers with advertisers through programmatic advertising technology. Founded in 2008, the company has evolved from an ad exchange into a comprehensive programmatic platform that helps publishers maximize revenue from their digital inventory across display, video, and mobile formats. OpenX serves thousands of publishers globally, processing billions of ad transactions daily. The company operates one of the largest independent ad exchanges, competing with major players like Google Ad Manager and Amazon Publisher Services. OpenX differentiates itself through its focus on transparency, brand safety, and premium inventory quality. The platform leverages advanced machine learning and real-time bidding technology to optimize yield for publishers while providing advertisers access to high-quality inventory. OpenX has positioned itself as a key alternative to the dominant tech platforms in the programmatic advertising ecosystem, emphasizing publisher control, fair marketplace dynamics, and privacy-compliant solutions. The company has adapted to industry changes including header bidding, privacy regulations like GDPR and CCPA, and the deprecation of third-party cookies.