OpenX (company)

OpenX is a programmatic advertising technology company. The company has developed an integrated technology platform that combines ad server and a real-time bidding (RTB) exchange with a standard supply-side platform (SSP) ensuring the highest real-time value for any trade. OpenX was founded in 2008 and has raised over $75 million from Accel, Index, Samsung, Dentsu, Mangrove Capital and others.

According to Pixelate, OpenX Marketplace had the highest quality ad inventory in 2015, beating Google's ad marketplace (Google Adx). OpenX integrations are widely distributed / long tail and currently sees the second most impressions (2%) on the internet, after Google. Its new traffic quality platform for viewability and fraud detection technology has the ability to leverage this position by seeing impressions earlier than existing ad verification / pre-bid solutions used by DSP and agency trading desks.