OpenX operates the world's leading independent supply-side platform, a core component of the programmatic advertising ecosystem. The company's platform connects publishers and advertisers globally, handling a substantial volume of digital ad transactions. Its technical infrastructure is built entirely on the cloud, leveraging Google Cloud Platform to deliver performance and scalability.
The platform processes over 500 billion ad requests daily and serves more than one million ad creatives. It supports targeting and delivery across multiple digital channels, including mobile, display, and connected television. OpenX works with over 200,000 brands and maintains direct relationships with more than two million publisher domains.
The company's technical work involves cloud-native infrastructure, programmatic advertising systems, identity resolution, and omnichannel targeting. OpenX is headquartered in Pasadena, California, with a presence across North America, Europe, Asia, and Australia. The firm states a commitment to responsible media practices and notes it was the first ad exchange to achieve CarbonNeutral® certification and Net-Zero verification.
