In a deal that will reshape the advertising and communications industry, Omnicom has completed its $13 billion deal for Interpublic, creating a marketing behemoth that will seek to leverage its scale and generative artificial intelligence to reimagine the sector.

“This is a defining moment for our company and our industry,” said John Wren, chairman and CEO of Omnicom, in a statement Wednesday. “With the completion of the deal, Omnicom is setting a new standard for modern marketing and sales leadership — creating stronger brands, delivering superior business outcomes, and driving sustainable growth. We’re excited about this next chapter. I want to thank our people, clients, and shareholders for the trust they have placed in us.”

In a deal that will reshape the advertising and communic

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