Omnicom posts over $4 billion Q3 revenue, eyes Nov closure of Interpublic merger

Advertising giant Omnicom Group has reported third-quarter 2025 revenue of $4.04 billion, posting an organic growth of 2.6%, as the company prepares to finalise its landmark merger with Interpublic Group (IPG) next month.

“We expect to close the Interpublic acquisition next month, creating the world’s leading marketing and sales company. Together, we will emerge with the industry’s most talented team and a powerful platform designed to accelerate growth through strategic advantages in data, media, creativity, production, and technology,” said John Wren, Chairman and Chief Executive Officer of Omnicom in an official statement.

“We’re already seeing strong momentum with significant new business wins across both companies, underscoring the compelling opportunities this acquisition creates. Our enhanced ability to deliver revenue growth, operate with greater efficiency, and generate healthy free cash flow only strengthens our confidence in the future - for our clients, our people and for long-term shareholder value,” Wren added.

For the quarter ended September 30, 2025, net income stood at $341.3 million, down from $385.9 million in the same quarter last year, reflecting an 11.6% decline due largely to merger-related and repositioning expenses.

Operating income came in at $530.1 million, while non-GAAP adjusted EBITDA stood at $651 million, representing a 16.1% margin, slightly ahead of last year’s 16.0%.

Diluted earnings per share were $1.75, compared to $1.95 a year ago. On a non-GAAP adjusted basis, EPS rose to $2.24, up from $2.03 last year. Revenue increased 4% year-on-year, boosted by $102.4 million in organic growth and a 1.4% positive foreign exchange impact, while acquisition and disposition revenue were not significant. By discipline, the strongest organic growth came from Media & Advertising (up 9.1%), followed by Execution & Support (2.0%) and Precision Marketing (0.8%). These gains were partially offset by declines in Healthcare (-1.9%), Public Relations (-7.5%), Experiential (-17.7%), and Branding & Retail Commerce (-16.9%).

Geographically, Latin America led with a robust 27.3% organic growth, followed by Middle East & Africa (5.9%), the United States (4.6%), and the United Kingdom (3.7%). Growth in Asia-Pacific (-3.7%), Euro Markets & Other Europe (-3.1%), and Other North America (-0.2%) softened the overall topline.

 Despite margin pressures and integration expenses, Omnicom’s steady topline growth and double-digit adjusted profitability signal continued resilience in a soft advertising market.

 The imminent merger with Interpublic is expected to redefine the global agency landscape, giving the combined entity unmatched scale across creative, media, and data-driven marketing.

The company said it remains focused on leveraging synergies and maintaining disciplined cost control as it enters what could be the most transformative quarter in its history.