Omnicom on Wednesday officially completed its acquisition of Interpublic Group (IPG), closing what is being described as one of the most significant consolidations the global advertising and marketing industry has ever witnessed. With regulatory approval secured and all closing conditions satisfied, the merger creates a powerhouse positioned to lead the next era of data-driven and AI-enabled brand building.
A key focus during integration is leadership continuity. John Wren will remain Chairman and CEO, while Phil Angelastro continues as EVP & CFO. Philippe Krakowsky and Daryl Simm have taken over as Co-Presidents and Chief Operating Officers. Krakowsky, along with Patrick Moore and E. Lee Wyatt Jr., has also joined Omnicom’s Board. The full organisational structure for the unified company is expected to be made public on December 1, 2025.
The combined Omnicom positions itself as a next-gen growth platform by bringing together the widest range of capabilities across creative, media, data, CRM, analytics, commerce and marketing solutions all integrated through Omni, the company’s proprietary intelligence architecture. According to Omnicom, this tech framework reshapes how creativity, talent and technology will come together to deliver growth solutions for global clients.
Calling the deal transformative, John Wren said, “This is a defining moment for our company and our industry. 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.”
EU grants unconditional approval to Omnicom–IPG merger
Pro Forma Financials Filed with SEC
With annualised pro forma revenue surpassing USD 25 billion, the merged entity will continue to be listed on the New York Stock Exchange under the ticker “OMC.” Under the merger terms, IPG shareholders received 0.344 Omnicom shares for each IPG share. This results in legacy Omnicom shareholders owning approximately 60.6% of the combined company, while former IPG shareholders now hold nearly 39.4% on a fully diluted basis.
The company has submitted unaudited pro forma financial statements to the U.S. Securities and Exchange Commission (SEC), giving the public its first formal regulatory snapshot of the operational structure and financial baseline of the post-merger organisation. Omnicom has also initiated a USD 2.95 billion exchange offer for IPG’s outstanding senior notes, effectively refinancing IPG’s debt under the merged company’s capital structure. The exchange, along with related consent solicitations, is directly tied to the merger’s completion, underscoring how critical the debt restructuring is to the new entity’s financial architecture.
Industry watchers note that while pro forma data provides early visibility into the combined business, the numbers should be read with caution since integration-related synergies, restructuring expenses, headcount efficiencies and consolidated operational costs have not yet been factored in.
FCB, DDB in Focus as Omnicom–IPG Merger Reshapes Creative Landscape
What Makes This Deal Stand Out
This merger has been in discussion for months and dramatically reshapes the competitive landscape. Unlike previous holding company consolidations driven by geography or specific specialisations, this is essentially a merger of equals, two long-established networks with similar global footprints, overlapping service portfolios, and strongly rooted cultures.
Both groups operate on a “house of brands” model and oversee extensive rosters of creative, digital, media, PR and specialist agencies. With little differentiation in geographic strengths, nearly every capability, offering and market presence overlaps raising inevitable questions about integration choices and rationalisation.
Anxious wait for 1.2 lakh staffers as Omnicom and IPG seal mega merger
A High-Intensity Push Ahead
The merger comes at a time when the advertising business is undergoing rapid shifts. Big Tech companies, consulting firms and AI-first disruptors are steadily eating into the traditional agency space. To stay ahead, the new Omnicom is expected to move aggressively in emerging areas such as AI, automation, retail media, and outcome-based marketing.
However, this also signals upcoming restructuring within legacy agency brands as overlapping operations are assessed and streamlined.
