Activate Your Audiences Across the Open Web. Seamlessly.

Industry-leading technology, premium service, and huge scale make us the world's most dynamic exchange for data and identity — whether cookies are here or not.

OpenX is the first ad exchange to go carbon neutral and achieve CarbonNeutral® company certification from Natural Capital Partners. We’ve been on an ongoing mission to drastically reduce our environmental impact, joining thousands of the world’s leading companies on the path to Net-Zero. Learn more.

Big, global and omnichannel

Our exchange covers all device types and formats at scale. Quality at every step. That’s why the world’s largest publishers, marketers, and DSPs confidently partner with us.

Benefits of Our Exchange »

Find your perfect audience

Bring your own first-party data, or leverage our third-party data. Either way, we’ll identify, reach, and help you engage your audiences across every supply channel.

Explore the benefits of OpenAudience™ »
Google Cloud

OpenX is the only 100% cloud-based exchange, giving us the most efficient tech stack in the industry.

Audience creation. Optimization. Bid guidance. Tell us what you’re working toward, and we’ll do the heavy lifting.