Omnicom, IPG fast-track merger with dedicated teams

With regulatory approvals secured in 14 of the 18 key markets—including the United States, India, and China—Omnicom and Interpublic Group are now fast-tracking efforts to finalize their $13.5 billion merger.

Both companies have deployed dedicated integration teams at the corporate level, working closely with external consultants to ensure a seamless and successful transition, CEO John Wren told the investors last week, e4m has learnt.

At the heart of this complex integration effort is newly appointed Chief People Officer Susan Catalano, whose mandate goes beyond aligning HR policies to building trust, preserving talent, and creating a shared culture across the combined entity.

Catalano’s role will be critical in shaping how thousands of employees—from creatives and strategists to tech and media professionals—rally behind a unified vision. “Getting the people piece right is foundational to the success of any merger,” a senior executive close to the process noted.

As e4m reported on Monday, Omnicom’s acquisition of IPG has received regulatory clearance in 14 global markets, with Australia being the most recent to grant approval. The EU is the biggest remaining market.

“We are continuing to work on the necessary approvals and remain on track to close in the second half of 2025,” an Omnicom spokesperson told e4m on Monday.

A complex exercise for India op

The merger would consolidate two of the “Big Five” holding companies into a single behemoth. While this move is poised to redraw the global advertising map, nowhere are the implications more layered—and perhaps more precarious—than in India.

After all, both the networks hold scores of agencies under their fold in India. 

Under IPG, the creative strength lies in three powerhouse networks: McCann Worldgroup India, FCB Group India, and Mullen Lowe Lintas. Omnicom’s creative muscle, on the other hand, comes from the DDB Mudra Group, TBWA India, and BBDO India.

As far as media agencies are concerned, IPG stable has Mediabrands India, Initiative, Lodestar UM, Interactive Avenues, and Rapport. On the Omnicom side, the portfolio spans agencies like OMD, PHD, Hearts & Science, and Annalect—covering strategic media planning, precision marketing, and advanced analytics. Together, these agencies form a powerful integrated ecosystem, well-positioned to serve clients across industries with end-to-end media solutions.

In a series of reports in May, e4m has reported how various agencies under both the networks have witnessed leadership churn ahead of the merger.

Adding to the anxiety of employees is CEO John Wren’s earlier announcement during Q1 call: a 40% reduction in corporate expenses as part of a broader cost-cutting strategy. He emphasized eliminating redundancies and streamlining leadership through a Unified Practice Area structure.

The early groundwork indicates that both the US-based holding companies are determined to hit the ground running post-closing, with cross-functional teams already mapping out key areas for synergy, client stewardship, and innovation which would be a mammoth task, experts believe. 

Wren says, “By combining our complementary strengths, the new Omnicom will be equipped with industry-leading resources to drive a bold era of growth for our people, deliver superior outcomes for our clients, and generate significant, long-term value for our shareholders.”

Wren also expressed pride in recent global accolades, noting that OMD Worldwide was named Media Network of the Year and DDB Worldwide won Network of the Year at the Cannes Lions Festival of Creativity. “Our ability to lead in both creative and media is a testament to Omnicom’s end-to-end capabilities and the exceptional work our teams deliver for clients every day,” he said.

Duncan Painter to Lead Data & Tech Platform

Omnicom is also aligning its existing portfolio to ensure that clients immediately benefit from the combined company—particularly through an integrated operating platform. Effective July 1, the company reorganized its most advanced data and technology assets—Omni, Omni AI, ArtBot, and Flywheel Commerce Cloud—into a single end-to-end platform organization to power its strategy forward.

Following the proposed IPG acquisition, this platform will be significantly enhanced by the addition of KINESSO and Acxiom—recognized as the world’s most accurate data platform—along with Real ID, the most comprehensive customer identity solution available today.

The newly unified platform organization will be led by Duncan Painter, a seasoned executive with a proven track record in building technology platforms across Flywheel, Experian, and Sky.

Account Wins Continue

Despite the ongoing merger process, Omnicom remains sharply focused on client delivery and business growth. In fact, the momentum continues: recent wins include Under Armour (Asia Pacific), Bimbo Global, and ASDA—underscoring the team’s ability to earn trust and deliver value even during a time of transformation, Wren noted.

“As we look to the second half of the year, we remain confident in achieving our full-year organic growth and margin targets. Our focus will remain on delivering for our clients and successfully completing the Interpublic transaction,” Wren added.