Nielsen Strikes 'Marketing Cloud' Deal With WPP Media's InfoSum

Weeks after announcing an expansion of its data licensing deal with WPP Media, Nielsen this morning announced a deal with recently acquired WPP Media data clean room InfoSum.

The new deal provides InfoSum access to the proprietary data sets via the Nielsen Marketing Cloud, signaling a broader shift toward cloud-based vertical integration of audience data used to plan and buy media.

Nielsen originally launched its cloud-based approach in 2023 as part of a deal with another data clean room, Snowflake, enabling customers and their platforms to access its respondent-level audience data.

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It wasn’t clear at presstime how the new deal with InfoSum differs from WPP Media’s previously announced data access and integration deal, or whether other peer agency holding companies have comparable access, but in March Nielsen also announced a similar-sounding deal with Interpublic’s Acxiom unit providing direct access to Nielsen’s “advance audience” data and analytics.

When WPP acquired InfoSum – a company previously run by WPP Media CEO Brian Lesser, who also held equity in it – it announced that InfoSum would operate as part of WPP Media and could be integral to WPP Open, WPP’s corporate-level operating system powering data, creative and media across its agencies and clients.

This morning's deal covering its marketing cloud data includes access to "premium third-party" sources that are part of Nielsen's so-called "identity graph" and audience segmentation tools used to enhance Nielsen's own, first-party data.

"By combining that with InfoSum’s privacy-first infrastructure and secure data collaboration, this strategic relationship empowers advertisers and publishers to unlock richer, faster, and more privacy-conscious solutions," InfoSum Senior Vice President-Sales North America Marc Cestaro said in a statement.

1 comment about "Nielsen Strikes 'Marketing Cloud' Deal With WPP Media's InfoSum".
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  1. Ed Papazian from Media Dynamics Inc, August 20, 2025 at 9:52 a.m.

    Expect to see more of this in the future, with the big agencies attempting to tie in client purchase data or similar information with Nielsen's TV audience ratings on a "simulation" basis. The focus will be not only on targeting but on "outcomes" like increased or decreased purchase after exposure to specific brand commercials--which is fine, Except for one thing. The base TV "audience" data produces a greatly inflated description of commercial viewing. But  adjustments, using attentiveness information, might clear up some of the confusion. We shall see.

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