Before the deal with LiveRamp was finalized, Publicis Group CEO Arthur Sadoun personally sent out 500 emails. Clients, partners, and rival holdcos all have the same message. Nothing changes. LiveRamp remains neutral. Your data is safe.
He had to send those messages. Holdco alone accounts for 5% of LiveRamp’s revenue. Losing them on day one would complicate the rationale far beyond advertising. This is a $2.2 billion bet that the next $1 trillion market will not be in the hands of the best media buyers. Funding will go to those who can help clients build AI agents that their competitors can’t imitate.
Because anyone can license an AI model. It’s not an edge. According to Sadun, the data is as follows. Specifically, the set spans 25,000 publisher domains, more than 500 data and technology partners in 14 markets, and serves 800 clients, 250 of which are Fortune 500 companies.
What LiveRamp does is take client-owned data (customer records, transaction history, behavioral signals) and allows it to be passed across the ecosystem without exposing the underlying details. The mechanism for doing so is RampID, a pseudonymous identifier that runs across publishers, retailers, CTV platforms, and data partners. It allows marketers to match CRM lists to publisher audiences, measure whether ads drive sales, and run campaigns across the open web. Thanks to Data Clean Room Habu, data never leaves the hands of its owners.
If that sounds familiar, it should. Publicis has been making a version of this bet since 2019, when it acquired Epsilon for $4.4 billion. And last year, it acquired Lotame to strengthen its post-cookie identity. Now, live lamp. At the time, each transaction had a logic of personalization and agent identity. But that throughline has never changed. Data is a permanent advantage. Technology may change and the burden of compliance may shift, but government agencies were in charge of the best data that came along first. Acquiring Liveramp is Publicis continuing that tradition.
“In 2019, we acquired Epsilon in the name of leading in personalization at scale, which allows our clients to take back control of their data from walled gardens by moving from cookies to IDs,” Sadoun told analysts on a call today (May 18). “Now, with LiveRamp, we are looking to: build the future of data co-creation, enabling our clients to generate new, proprietary, and unique data and build the smartest, most differentiated AI agents on top of leading LLMs.”
The stack will run on three different identification systems: Epsilon, Lotame, and LiveRamp, if the deal closes by the end of the year as planned. There are no plans to integrate the two companies as they operate different businesses. The point is that they are connected.
“Identity is a prerequisite for AI. Without identity, you can’t beat AI,” Sadun says. “Look at all the platforms. Without identity, you don’t win. And everyone understands that. What LiveRamp adds to the beauty is that it doubles down on data co-creation, collaboration to get new datasets. Identity entitles you, and you win by creating new asset sets and new datasets.”
In theory, it unfolds as follows. Sapient, the group’s consulting arm, will work first to modernize the legacy infrastructure that most companies still run. Its audience division, Epsilon, connects that infrastructure to real people: their identities, behaviors, and transactions. LiveRamp adds a layer of collaboration, allowing clients to pool data with partners, publishers, and retailers to improve match rates, activate audiences across the walled garden, and measure whether it actually works. AI Solutions Marcel is at the top, enabling a full range of AI solutions across our clients’ businesses.
Each part plays a different role. Overall, a client running the full stack will be using proprietary data across Epsilon, Lotame, and LiveRamp, and will not be able to compete with competitors using the same LLM with general-purpose inputs.
An example that Publicis repeated over and over again was banks. Fullstack allows banks to build wealth management agents that extract from retail banking, credit card, and wealth management data and securely connect those partners to merchant data, payment networks, and travel providers without having to see each other’s records. Agents can cross-sell faster, detect fraud more accurately, and personalize to a level not possible when working only with data they already have.
Carla Serrano, chief strategy officer at Publicis, was candid about why that difference exists. He said most companies run agents based on legacy data built to report on the past rather than make decisions for the future. And since everyone gets their information from the same common sources, no one has an advantage. “Everyone has access to the same data from the same agents, which erodes competitive advantage,” she told analysts. Publicis’ story shows how LiveRamp changes that.
That’s the differentiator that Publicis is selling. The benefits of data will grow over time and, if done well, begin to shift revenue away from advertising budgets, which rise and fall in response to macroeconomic changes, and into the kinds of enterprise transformation deals that don’t.
Strategic logic is one thing. Finances are different
LiveRamp is not a distressed asset. Last year’s revenue was $813 million, growing at 13% annually and customer retention rate is 107%. Publicis paid a 29.8% premium for something that was already working. The short-term justification is targeted cost savings and earnings per share growth of $50 million starting in the first year. The long-term bet is international. LiveRamp is currently 95% US based and Publicis is based here. Epsilon’s overseas ratio increased from 5% to 20%. That same strategy with LiveRamp’s global customer base is where the real growth numbers come from.
“The big holdcos are all facing the same existential question: In a world where AI agents autonomously plan, buy, and optimize media, what are agencies really for?” said Tom Laband, co-founder and CEO of location data business Adsquare. “The answer they’re coming together is the same: own the intelligence layer. That means own the data, the identity infrastructure, the clean rooms, the measurements. LiveRamp is giving Publicis significant rights to that layer.”
But proving that claim is easier than you might think. The issue of neutrality is not relevant to this deal, it goes to the heart of what brought so much value to LiveRamp in the first place. RampID worked because everyone was using it. And they did so because no player owned it. Things change the moment you put Publicis’ name on the door. Competitors start hedging. Vendors look for alternatives. And the industry-grade infrastructure becomes another asset: Publicis. It’s a different product. It’s much less valuable.
Sadun knows this. During the conference call, he made four promises. LiveRamp will continue to operate as an independent business with open access, no restrictions on any client’s services, and full interoperability, but client and partner data will only be used when explicitly agreed.
None of this can stop you from asking questions. Analysts asked whether a new governance structure was planned to keep competing data providers comfortable. No, that was the answer. Then a more difficult question arose. If LiveRamp remains neutral, what does the ownership give Publicis that it didn’t get in the partnership?
Sadun’s answer broke it. He said that in the advertising business, Publicis didn’t need to own LiveRamp to win. The agent transformation market is different. A commercial partnership does not allow the two companies to jointly build products or services that they could not build on their own. Net neutrality and the unique features on top of it are important.
It’s not just a paper either. Publicis has staged this play before. The market raised similar concerns when the company acquired Influential and Captivate in 2024. Currently, approximately half of the revenue from both platforms comes from clients and competitors other than Publicis. They stayed because leaving meant building it themselves.
LiveRamp CEO Scott Howe seconded it. He said the issue of neutrality had been at the heart of the deal negotiations from the beginning, and that it was “a topic that started a long time ago” and that it was not a promise that was actually settled. It was the day of the announcement that LiveRamp called hundreds of clients and all major Punisher partners. “Throughout all these conversations, there was never any concern that this promise would be kept,” he said.
This transaction does not exist in isolation. This is Publicis’ answer to a question that no holdco is trying to solve at the same time. AI agents automate things that holdcos traditionally charge for, including media planning, buying, and optimization. If tasks can be automated, questions about what agencies are actually for become less legitimate. Holdcos that are winning today are those that are reimagining the answers before the CMO comes up with them for them.
“The industry as a whole is waking up to the fact that the era of results requires a fundamentally different stack,” Adsquare’s Laband said. “The holdcos that win will be the ones whose intelligence is so deeply embedded in the way the brand operates that the agency can’t function without them. That’s the real land grab that’s happening right now.”
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