OnAudience

Mid-tier European third-party audience data marketplace and DMP provider with strong Central and Eastern European presence

OnAudience was a data-driven advertising technology company founded in Poland that operated as a Data Management Platform (DMP) and audience data marketplace. The company specialized in collecting, processing, and monetizing behavioral and demographic audience data, offering advertisers, agencies, and publishers access to pre-built and custom audience segments for use in programmatic advertising campaigns. OnAudience built one of the largest third-party data marketplaces in Central and Eastern Europe, with reach extending to global markets through integrations with major demand-side platforms and data exchanges. The company's core offering centered on its audience data marketplace, where buyers could access hundreds of pre-defined segments spanning interests, purchase intent, demographics, and B2B attributes. OnAudience also provided white-label DMP solutions for publishers and media companies looking to monetize their first-party data assets. Its technology enabled real-time audience targeting, lookalike modeling, and data enrichment, positioning it as a key data enabler within the programmatic supply chain across European markets. OnAudience operated as part of the GroupOne holding, a Polish digital marketing and technology group. The company faced significant headwinds from the broader industry shift away from third-party cookies and tightening data privacy regulations under GDPR, which heavily impacted the third-party data marketplace business model. These structural changes, combined with the deprecation of cookie-based tracking, contributed to the company's eventual wind-down. OnAudience's legacy reflects the broader challenges faced by third-party data providers in adapting to a privacy-first advertising ecosystem.