An overview of Ad Age’s 82nd annual report on the biggest agency companies.
Omnicom’s acquisition of Interpublic Group of Cos. created a new No. 1 in Ad Age’s 2026 Agency Report.
But the ranking points to a broader shift: Legacy holding companies are taking a smaller share of top-25 revenue, even as Omnicom reclaimed the top spot.
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John Wren: ‘Pace of change is unlike anything we have seen before’
Ad market reaches its highest share of GDP
The AI awakening for ad agencies
Ad Tech Briefing: The shifting tides behind Publicis and The Trade Desk's détente
The No. 1 agency company is back in the top spot for the first time in 18 years.
In the agency league, Horizon Media extends its lead while Initiative debuts at No. 2.
Ad Age Datacenter’s profile of Publicis with facts, figures and agency company details.
Omnicom and WPP are reshaping their strategies.
WPP Media released its annual global midyear forecast on Tuesday, with a focus on how the ad tech landscape compares to Manifest…
Explore the latest stories, trends, and expert commentary from AdExchanger's Advertiser section—your source for news, analysis,…
