WPP’s Acquisition of InfoSum

Cleary Gottlieb represented WPP plc (WPP) in its acquisition of InfoSum, the world’s leading data collaboration platform.

InfoSum will join GroupM, WPP’s media investment group, to power the creation of a new generation of AI-enhanced marketing solutions for clients, delivered through the industry’s most powerful and secure data infrastructure.

The transaction was announced on April 3, 2025. The terms of the transaction were not disclosed.

InfoSum’s technology enables WPP clients to swiftly deploy secure data environments optimized for federated learning and allow marketers to rapidly scale their custom AI models and onboard their data faster. By integrating InfoSum’s capabilities with WPP Open – WPP’s intelligent marketing operating system – WPP clients can safely unlock the full potential of their customer data, enriched through advanced AI.

InfoSum’s extensive global data network represents hundreds of billions of data signals across multiple dimensions of data from media platforms including Channel 4, DIRECTV, ITV, Netflix, News Corp, and Samsung Ads, as well as major retailers and identity and data partners including Experian, TransUnion, Circana, Dynata, and NCSolutions.

Headquartered in London, WPP provides services to clients through various agencies, including integrated creative, media, public relations, and specialist agencies. WPP’s agencies operate in over 100 countries supporting a client base, of more than 300 of the Fortune 500 companies. WPP’s ordinary shares are listed on the London Stock Exchange and are also quoted on the New York Stock Exchange in the form of American depositary receipts.

For more information, please see the press release.