In a move set to reshape the marketing and advertising landscape, Omnicom Group has announced it will acquire Interpublic Group in a stock-for-stock transaction. The merger will create an unrivaled marketing powerhouse with a broad spectrum of services and expertise.
The boards of both companies unanimously approved the agreement, which will see Interpublic shareholders receiving 0.344 Omnicom shares for each Interpublic share. Upon closing, Omnicom shareholders will hold 60.6% of the combined company, while Interpublic shareholders will own 39.4%. The deal is expected to close in the second half of 2025, pending regulatory and shareholder approvals.
The combined entity will bring together over 100,000 professionals and boast an impressive annual revenue of $25.6 billion. Services will span media, advertising, precision marketing, digital commerce, public relations, healthcare marketing, and branding, supported by advanced data-driven technology platforms.
“This merger is transformative,” said John Wren, Chairman and CEO of Omnicom. “Together, we will redefine the marketing landscape by accelerating innovation and delivering superior, data-driven outcomes for our clients. The integration of our talent, capabilities, and global reach ensures we are well-positioned for the future.”
Philippe Krakowsky, CEO of Interpublic, echoed the sentiment: “Joining forces with Omnicom amplifies our capabilities and enhances our ability to meet the evolving needs of our clients. This merger represents a unique opportunity to create a world-class portfolio of services and solutions.”
The merger is expected to generate $750 million in annual cost synergies and be accretive to adjusted earnings per share for both companies. Leadership roles will see Wren remaining as CEO of Omnicom, while Krakowsky and Daryl Simm will serve as Co-Presidents and COOs, with Krakowsky also co-chairing the integration committee.
The transaction underscores the companies’ shared vision of leveraging technology and data to deliver innovative marketing strategies in an era of rapid change. The new Omnicom will maintain its name and continue trading under the OMC ticker on the New York Stock Exchange.
