mediarithmics

A European-focused CDP and data marketing platform competing with global players by emphasizing privacy compliance, first-party data activation, and data collaboration for both brands and publishers.

mediarithmics is a Paris-based data marketing platform founded in 2013, offering a comprehensive suite of tools for audience data collection, unification, segmentation, and activation. The platform serves both brands and media publishers, enabling them to build first-party data strategies, orchestrate personalized customer experiences, and monetize audience assets. Its core offering combines CDP capabilities with data clean room functionality, audience management, and real-time decisioning. The company positions itself as a privacy-first alternative to walled gardens, helping clients reduce dependency on third-party cookies by leveraging first-party and second-party data partnerships. mediarithmics supports data collaboration between advertisers and publishers through its clean room technology, allowing secure data sharing without exposing raw personal data. This makes it particularly relevant in the context of the evolving identity landscape and increasing regulatory scrutiny around data privacy in Europe and beyond. mediarithmics targets enterprise clients including major retailers, telcos, media groups, and financial services companies across Europe. Its platform integrates with a wide range of marketing and advertising technologies, including DSPs, DMPs, CRMs, and analytics tools. The company competes with global CDP and data platform vendors while differentiating on European data sovereignty, flexibility, and its dual focus on both buy-side and sell-side use cases.