mediarithmics and Easyence merge. The group becomes the key player in Retail + Media, Register here.
As the first media group to integrate mediarithmics' Connect ID, Reworld Media allows advertisers to reconcile their CRM data with the main activatable identifiers of the Open Web through a shared, interoperable solution that respects the confidentiality of personal data.
Reworld Media has joined Connect ID, the advertising ID orchestration and reconciliation solution launched by mediarithmics last April. In a context of increasing ID fragmentation and the decline of third-party cookies, this integration allows advertisers to better leverage their CRM data on the open web. This results in improved audience recognition, more effective campaign activation, and enhanced performance measurement.
Following the deployment of the CDP and then the Data Clean Room from mediarithmics in 2025, Reworld Media is now extending this collaboration with its participation in Connect ID.
The solution allows advertisers to reconcile their CRM data with the proprietary identifiers of Connect ID contributing partners, including Reworld Media, in order to improve the recognition and activation of their audiences in environments with or without cookies, without exchanging raw data.
Brands, whether or not they are clients of the Mediarithmics platform, can thus strengthen their targeting and measurement strategies on the Open Web, including in cross-device scenarios. Audiences can be activated on Reworld Media's inventory as well as on other digital environments: Open Web, CTV, social, and conversational.
With more than 40 million proprietary identifiers and 1,200 first-party data segments, Reworld Media is thus pursuing its strategy aimed at making its data ever more actionable, interoperable and performance-oriented.
Data is now a strategic pillar of Reworld Media's development and represents a rapidly growing revenue stream for the group. By leveraging the power of its media environments, the richness of its proprietary signals, and its ability to activate audiences in increasingly fragmented environments, Reworld Media is progressively building a data and technology infrastructure designed to meet new advertising needs.
The integration of Connect ID is fully in line with this ambition: to make data a strategic asset capable of connecting content, audiences, intent and performance within the same activation ecosystem, while offering advertisers more fluid, measurable and interoperable devices.
“One of the major challenges in the market today is enabling data to flow and communicate with each other despite the fragmentation of identifiers. With Connect ID, we are strengthening our ability to reconcile our first-party data with advertisers' data much more seamlessly, even outside of traditional technology environments. This interoperability is essential for building more effective, measurable, and sustainable activations in a cookieless world.”
Marion Collombat, Data & GEO Director at Reworld Media
“With Connect ID, our ambition is to enable advertisers to better reconcile and activate their CRM data on the open web through an ecosystem of premium partners. We also want to build a more transparent and balanced model, in which those who contribute to identifier reconciliation are compensated according to the value they bring. Reworld Media’s participation perfectly illustrates this approach.”
Gilles Chételat, CEO of mediarithmics
