Omnicom–IPG merger: Jonathan Nelson breaks down the impact and future vision

In one of the most closely watched moves in the global advertising world, Omnicom’s proposed merger with Interpublic Group (IPG) has sparked intense debate and curiosity about structure, scale, and what the future holds for clients, agencies, and talent. At the center of this transformational moment is Jonathan Nelson, CEO of Omnicom Digital.

In this exclusive interview with Neeta Nair, Editor of IMPACT, Nelson breaks down what is poised to be one of the most significant consolidations in advertising history: the proposed merger between Omnicom and Interpublic Group (IPG). The deal, which brings together two global giants with a combined workforce of over 130,000, aims to create a more agile, tech-driven, and client-centric powerhouse in response to a rapidly evolving media and marketing landscape.

Nelson shares why this isn't just about size but about scale, synergy, and strategic depth, especially in areas like artificial intelligence, data platforms, and global service delivery.

He discusses how the merger could reshape Omnicom’s presence in key markets like India, and what it means for clients concerned about competition, talent navigating a shifting agency model, and the future of platforms like Omni and Acxiom.

Nelson offers a candid, insightful look at how Omnicom is preparing for what’s next and why young professionals entering the industry now are stepping into one of its most exciting chapters yet.

Q: The proposed Omnicom–IPG merger has sparked wide industry interest around its structure, strategy, job looses and death of agency brands. From your perspective, what does this merger represent and aim to achieve?

This is an incredibly complex transaction; we’re looking at one company with 79,000 employees acquiring another with 57,000. For most client-facing, line-level employees, there won’t be much disruption; their roles remain essential. 

That said, some redundancies are inevitable, and we’ve made certain synergy commitments to Wall Street that we intend to fulfill. However, at its core, this merger is about building a stronger, more capable organization, one that’s better positioned to serve our clients in a rapidly evolving landscape.

Q: There’s also growing concern around market concentration and the potential reduction in choice for advertisers. How do you plan to reassure clients that this merger will ultimately benefit them, enhancing the quality of services rather than limiting competition among media agencies?

I’ve never fully subscribed to the argument that this merger reduces competition. The reality is, there are hundreds of thousands of marketing companies globally, ranging from large networks to nimble independents. Advertisers continue to have a wealth of choice. What this merger allows us to do is scale our investments in areas that truly matter for clients, particularly in technology and innovation.

Take artificial intelligence, for example it’s a hot topic here at Cannes, and for good reason. However, the truth is that doing AI right and doing it at scale is incredibly resource-intensive. Combining with IPG gives us greater financial strength to invest in AI, data platforms, and new marketing technologies, all of which ultimately benefit our clients.

Now, in terms of integrating platforms like Omni from Omnicom and Acxiom or Interact from IPG, we're still early in that process. Regulatory review is ongoing, so we’ve been careful not to overlap too much just yet.

Once we have the green light, we’ll closely evaluate each platform. If IPG’s tools are better, we’ll use them. If ours are stronger, we’ll stick with them. It’s not about pride, it’s about what works best for our clients. But to be honest, we haven’t architected the full integration yet. That will come post-review.

Q: While duplication is one part of the conversation, integration also opens up opportunities for valuable additions. Is there a particular service or capability within IPG’s portfolio that you’re especially excited about bringing into the fold?

It’s a funny thing, this is a small industry, and I already know many of the incredibly talented people at Interpublic. I’m genuinely excited to work with them. One area I’m particularly enthusiastic about is Acxiom. They bring a depth of data expertise that we currently don’t have at the same scale, whether it’s in data security, cleansing, or the platform itself. It’s a massive and highly sophisticated business, and I’ve followed it closely over the years. Integrating that capability, along with the exceptional talent behind it, is something I’m truly looking forward to.

Q: Bringing together two industry giants is no small task. Realistically, what kind of timeline are we looking at for the full integration to take shape and start delivering visible impact?

We’re still waiting for regulatory approval before we can move forward in earnest. But even once that happens, the reality is, are you ever truly done with integration?

That said, our goal is to move swiftly and efficiently, especially given how fast the marketplace is evolving, particularly with advancements in technology. It’s about staying agile and making it work in a dynamic, ever-changing environment.

Q: Given the pace at which the industry is consolidating and evolving with Publicis and WPP advancing their integration strategies, and Dentsu presenting a unified offering for marketers, do you see any risk of losing competitive momentum as Omnicom and IPG await regulatory approval and begin the integration process?

I’m not entirely convinced by the notion that everything needs to be fully merged under one umbrella. While that may sound compelling on paper, it doesn’t always translate effectively in practice. Talent, for instance, doesn’t typically sign up to work for a massive monolithic organization; they join specific agencies like BBDO, Critical Mass. 

Q: An interesting dynamic in this merger is that, while Omnicom holds a larger global presence, IPG has a comparatively stronger footprint in the Indian market. How do you see this contrast playing out as the integration unfolds in a market like India?

I’m genuinely excited about that. In many ways, this is about two strengths coming together. Globally, Omnicom may be the larger entity, but in India, it’s quite the opposite; IPG has a stronger presence. So, in that market, you could say we’re the ones being added to them, and I think that’s a great thing. India is an incredibly dynamic and important market. I’ve always loved traveling there and have a deep appreciation for its culture.

Q: Could you tell us more about Omni AI, your newly launched platform, and how it’s set to enhance client-facing operations and overall service delivery?

Our new AI-driven initiative brings together the various models and agent frameworks we've developed, all within a secure and well-governed environment. The goal is to place these powerful tools directly into the hands of a large majority of our client-facing employees across Omnicom, enabling them to work smarter, faster, and more effectively. 

Q: Last year, you described generative AI as a 'superpower' for Omnicom employees. Could you elaborate on how you’re now integrating this technology across different stages of your workflow and operations? 

AI is truly at the core of what we're building. We’re developing end-to-end workflows that incorporate elements like synthetic research, synthetic audiences, and highly real, actionable creative concepts, along with advanced planning tools. It’s all powered by a vast and diverse dataset that is fundamentally reshaping how we approach and deliver our work. 

Q: What do you see as the next frontiers for AI in advertising, and how do you navigate the ethical boundaries as the technology evolves?

That’s a complex and timely question, especially as AI’s evolution moves from theory to real-world impact at incredible speed. Just two years ago, we were announcing our first major AI partnerships. Today, we have full-scale campaigns like the DALL·E Museum project and work for Temptations, Coors, and Persil live on air, built using generative AI tools that barely existed at last year’s Cannes.

Video capabilities have advanced rapidly, all within a privacy-safe, governed environment. Looking ahead, we see a convergence of modalities: video, audio, text, and graphics working seamlessly together. The most transformative shift, however, is the rise of intelligent agent frameworks, which enable models to perform specific tasks like content creation, audience simulation, and media planning. By deploying these across the company, we’re empowering employees with AI as a strategic partner, enhancing their work, not replacing it. It’s an incredibly dynamic time for the industry.

Q: Given Omnicom's significant investments in AI and the transformative merger on the horizon, what kind of opportunities do you see emerging for young talent entering the industry today?

You might not guess it, but most of Omnicom’s workforce is much younger than I am, though I was right in the median age range when I joined; I’ve just been here a while.

For young talent, this is a great time to join us. If you're passionate about creative work powered by data and the latest tech, Omnicom is the place to be. AI companies often talk about content, but no one produces more than advertising, we're creating thousands of videos every week, and AI is only going to amplify that.

So, if you're looking to be at the intersection of creativity, data, and innovation, and want to help shape the future, we’d love to have you on board.