The marketing industry is at a key inflection point.

Consumer expectations are rising. The industry is full of shaky promises, fragmentation and complexity. Brands are forced to do more with fewer resources. And as a marketer, you need to reach your brand goals and prove your performance.

The status quo won’t work anymore. Marketing solutions need to create more than just campaigns—they must create provable outcomes.


We’re here to drive your success.

For 50+ years, we’ve been the leader in outcome-based marketing. We enable marketing that’s built on proof, not promises. Through Epsilon PeopleCloud, the marketing platform for personalizing consumer journeys with performance transparency, Epsilon helps marketers anticipate, activate and prove performance. Powered by CORE ID®, the most accurate and stable identity management platform representing 200+ million people, Epsilon’s award-winning data and technology is rooted in privacy by design and underpinned by powerful AI.


With full control of customer relationships, you’ll draw a line between your marketing investment and real business outcomes.


We put privacy at the center of everything we do.

At Epsilon, consumer data privacy is a priority. Truth, trust and transparency are at the heart of everything we do, and all our solutions are proactively designed with those values built in.

For decades, we’ve had a hand in shaping the industry’s compliance around privacy. We’re active supporters of organizations that advocate to restore the balance between our clients and consumers, including the NAI and Not for Profit Alliance (we’re board members of both). We’re among the first to partner with the IAB on data labeling and transparency initiatives, and we’re rated #1 in data accuracy by numerous third-party validation sources.


At the core of Publicis Groupe, we're powering change in the industry.

In 2019, Publicis Groupe acquired Epsilon in one of the largest acquisitions in marketing history. The event puts Epsilon at the center of operations for Publicis around the world and sets the stage for Epsilon leading the industry in its own transformation.