J
John Gentry
CEO at Epsilon
Leading Epsilon's transformation into a privacy-first identity platform and scaling CORE ID as a cookieless targeting solution.
OperatorIrving, Texas, United States20+ years in industry
Last updated Jun 6, 2026 by the ATDb Editorial Team
Bio
John Gentry is CEO at Epsilon, where he has led the company's strategic repositioning as a privacy-first identity and data platform in response to third-party cookie deprecation. Under his leadership, Epsilon integrated into Publicis Groupe's Power of One strategy, expanding its capabilities across global marketing services. He has overseen the scaling of Epsilon's CORE ID as a widely adopted identity solution for brands implementing cookieless audience targeting.
Previous Roles
President
Epsilon (prior to CEO appointment)
Expertise
Identity ResolutionFirst-Party Data ActivationPrivacy-Compliant MarketingData Management PlatformsOutcome-Based MarketingProgrammatic AdvertisingCORE IDMarketing Technology Strategy
Notable Achievements
- Led Epsilon's strategic repositioning as a privacy-first identity and data platform amid the deprecation of third-party cookies
- Oversaw Epsilon's integration into Publicis Groupe's Power of One strategy, expanding its reach across global marketing services
- Scaled Epsilon's CORE ID as a widely adopted identity solution for brands seeking cookieless audience targeting
Speaking Topics
Privacy-compliant identity resolutionFirst-party data strategies for brandsThe future of outcome-based marketingNavigating cookie deprecation and signal loss
Connections