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Achieve unrivaled accuracy and reach—without walls

Effective marketing starts with knowing your customers—but walled gardens keep much of that knowledge hidden. That’s why Epsilon built a better way. COREid® services provide the industry’s most accurate, stable and scalable identity resolution solutions to recognize and reach 200M+ U.S. consumers in a privacy-safe way.

Fill the gaps in your customer data with COREid solutions

At Epsilon, we see data as little bits, bytes and blocks of all the actions that people take, online and offline. Watch how COREid services connect it all so you'll see each person fully, clearly and securely across all your marketing.

Activate and measure with a complete picture of connected identity

An industry-verified complete solution

Epsilon’s COREid was the only identity solution to capture all nine of the potential identifiers outlined in Digiday+’s “A guide to the top ID alternatives for publishers” report. COREid’s strong offline and online foundation ensures persistency, efficiency, and more accurate reach.

Future-proofed ID resolution

For over 10 years, Epsilon has been strengthening COREid to have zero reliance on unstable identifiers. We also started investing in direct publisher relationships in 2012. This robust approach allows Epsilon to identify and reach individual consumers, at scale, without third-party cookies.

Powering customer insights

COREid is the backbone to our customer data platform, Epsilon Customer. Through Customer, you can more deeply understand your customers, conduct analysis and activate your customer data across both owned and paid channels -- creating a fully engaged customer experience with your brand.

How COREid is different

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Protecting privacy comes first

Epsilon has a trusted, 50+ year legacy of protecting privacy.

Epsilon has a trusted, 50+ year legacy of protecting privacy. We exceed consumer, client and regulatory expectations for privacy and data stewardship.

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Unrivaled accuracy at an individual level

COREid is the only identity resolution solution that requires a complete name and address validated by transactions.

COREid is the only identity resolution solution that requires a complete name and address validated by transactions. That's how we ensure marketers reach the right person with maximum precision and efficiency.

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Highest-quality omnichannel reach

The COREid graph of 200M+ U.S. consumers is the only solution grounded in offline name and address.

The COREid graph of 200M+ U.S. consumers is the only solution grounded in offline name and address. This allows us to enable omnichannel people-based activation, measurement and waste reduction.

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Seamless connectivity, online and offline

Our single source of identity resolution enables consistent 1:1 conversations everywhere consumers interact with your brand.

Our single source of identity resolution enables consistent 1:1 conversations everywhere consumers interact with your brand. All while maintaining rigorous data separation and privacy protocols.

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Longevity that sustains lifelong connections

Anchor to the uniquely sturdy bedrock of our people-based COREid.

Anchor to the uniquely sturdy bedrock of our people-based COREid. Then you can be confident your ability to reach customers over time won’t drift away with third-party identifiers.

Blog

Unilever activated COREid solutions for 5x more customer recognition in six weeks

Unilever had identity challenges, logging each website visit as a net-new interaction even if they were from loyal customers. In six weeks, Epsilon solved that and delivered unrivaled results.

See how COREid powers unprecedented results for our clients

WALGREENS | Retail

Healthy customers & customer relationships

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DUNKIN' | Restaurants

Brewing better customer connections

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HOT TOPIC | Retail

Teeing up sales and scale

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