Omnicom’s John Wren on why he’s betting big on an IPG acquisition

(Credit: Courtesy of Omnicom)

For decades, Omnicom has been one of the world’s largest advertising holding companies, guiding global brands through waves of industry transformation. Now, under the leadership of CEO John Wren, the company is embarking on its most ambitious move yet with the ongoing acquisition of rival Interpublic Group (IPG).

The deal—announced in December 2024—will create the world’s largest advertising and marketing company and mark a major shift in the industry as AI and technology reshape the way agencies work with clients.