Available from version 5.0.0 (Audience Manager required).
If you are collecting data with Piwik PRO Analytics you can use that data to create audiences. An audience is a group of people who share specific traits, for example Apple users, visitors from UK, dog lovers, and more. Audience Manager builds an audience basing on the data collected from your website and the traits that you set up for an audience.
Once you build an audience, you can use it in Tag Manager, Personalization, or export it to a third-party advertising tool.