Agencies bought at end of 2022 include Fiftyfive5 and Melon.
There were 76 deals globally in November, with North America being the most active.
April sees surge in private equity-backed deals, Havas, Stagwell and Horizon among the high-profile buyers.
Campaign AI M&A watch: There were 74 marketing services deals in July.
There were 369 marketing deals in first half of 2021.
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