Microsoft has awarded its global media planning and buying mandate to Publicis Groupe following a competitive review, bringing an end to its long-standing partnership with Dentsu.
The move, first reported by Ad Age on April 1, 2026, signals a strategic shift as Microsoft looks to strengthen its global media operations with a more data-driven and integrated approach.
Dentsu had handled Microsoft’s media business since 2014 through its network, including Carat, and had successfully retained the account during a 2018 review. The latest decision therefore represents a significant change for the agency group.
The pitch process drew participation from several major global agency networks, including WPP and Interpublic Group. Omnicom Group did not take part due to a conflict linked to its relationship with Apple. Publicis ultimately secured the business, further strengthening its position among global technology advertisers.
Microsoft’s marketing investment underscores the scale of the win, with the company reportedly spending around $1.5 billion annually on advertising. As a result, this transition is being viewed as a major shift within the global media landscape rather than a routine account change.
In parallel, Publicis has been enhancing its data and analytics capabilities, including the acquisition of AdgeAI, aimed at improving campaign measurement and optimization.
The partnership is expected to enable Microsoft to benefit from more precise targeting, improved efficiency across markets, and stronger performance forecasting. More broadly, the move reflects a wider industry trend, where brands are increasingly prioritizing agency partners with advanced capabilities in AI, identity data, and predictive analytics.
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