When Publicis Groupe announced its $2.167 billion acquisition of LiveRamp, the industry found itself asking a question it had never had to ask before. LiveRamp wasn’t one identity vendor among many. It was the connective tissue letting competing agencies, brands and platforms move data and identity across each other’s walled gardens, on the understanding that the pipes themselves answered to no one.
No other company in ad tech held that position, which is exactly why the LiveRamp acquisition has raised a question with no precedent: Can shared infrastructure survive being owned by a direct competitor of the companies that rely on it?
Publicis offered the predictable defense. CEO Arthur Sadoun called the deal a “nonevent” for clients, since “LiveRamp technology is neutral by design.” That’s a claim about code, not incentives. Code doesn’t set product road maps or pricing. A direct competitor does.
Omnicom answered with actions instead. Originally contracted with LiveRamp through Q1 2028, CEO John Wren moved the drop-dead date up by nearly a year, telling investors: “I don’t see there is any way that you can get any value keeping LiveRamp independent of the rest of your infrastructure.”
WPP reached the same conclusion on its own. At Cannes, CEO Cindy Rose confirmed WPP had stopped using LiveRamp. Asked if it was tied to Publicis, her answer left nothing to interpretation: “What do you think?”
The open question now is what the market looks like in three years.
Three holding companies, one verdict
Follow the actions, not the statements, and the answer is already visible: The major holding companies are building their own identity infrastructure.
Publicis is buying the connective tissue outright. Omnicom, through its acquisition of IPG, now holds Acxiom, arguably the most valuable identity asset in the industry. WPP has been here before. It built Xaxis into a market-leading activation business through years of sustained investment. InfoSum gives WPP the clean room piece, and WPP’s history says it will build or buy the rest. Dentsu and Havas haven’t moved yet. Expect them to.
The same consolidation is running through the rest of the market. TransUnion spent years assembling an identity stack: TruSignal, Signal, Tru Optik, then Neustar for $3.1 billion. Experian bought Tapad, then Audigent. Zeta bought LiveIntent. ID5 bought TrueData. Each is a proprietary system in the making, connecting the open web back to a graph one company owns.
That’s the market taking shape: a handful of proprietary identity stacks, each controlled by a company with its own competing interests, where a single neutral interconnect used to sit. The holding companies just told you what they think of that arrangement. Nobody with capital chose dependence.
Consolidation cuts two ways
For the acquirers, every deal builds a proprietary lane. For everyone else, it produces something stranger: homogenization. As TransUnion and Experian get bigger, they increasingly buy from the same handful of underlying data suppliers. Two “proprietary” graphs assembled from the same licensed feedstock aren’t proprietary in any way that matters. Scale converges. The genuinely scarce asset isn’t the biggest graph; it’s the signal you generate and control yourself, that nobody else can license.
The value of that signal is about to compound. Publicis didn’t frame the LiveRamp deal around activation. It framed it around building smarter agents, with Sadoun saying the quiet part out loud in the announcement itself: “Agents built on co-created data learn and improve with every signal,” unlike competitors training their agents on stagnant, generic data.
As media buying shifts to agentic systems, identity signals stop being just targeting inputs and become training data. The company that controls the pipes controls the signal, and the signal improves the algorithm itself. That’s a feedback loop, and feedback loops reward ownership. While holding companies build self-reinforcing loops on proprietary signals, everyone else is left renting graphs increasingly assembled from the same feedstock. The gap between owned signal and licensed signal is about to widen, and it widens fastest for whoever owns nothing.
This leaves independent agencies, mid-market brands and publishers with the question that matters most. The holding companies moved because they ran the math on dependency and didn’t like the answer. What share of your addressable identity runs through pipes a direct competitor controls? When your infrastructure options are LiveRamp under Publicis, or whatever emerges from Omnicom, WPP or the next roll-up, are you willing to run your addressability and training data through an asset owned and controlled by a potential competitor?
Publicis didn’t create that problem. It just started the clock.
“Data-Driven Thinking” is written by members of the media community and contains fresh ideas on the digital revolution in media.
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