Skip to content
ATDbbeta
M

Megan Clarken

Senior Advisor (former CEO) at Criteo

Clarken is known for steering Criteo through an existential industry transition—pivoting the company from cookie-dependent retargeting to a privacy-first commerce media platform—and for being one of AdTech's most prominent voices on the future of identity and retail media.

OperatorNew York, New York, United States20+ years in industry

Last updated May 30, 2026 by the ATDb Editorial Team

Bio

Megan Clarken is a senior advisor at Criteo, the commerce-media company she led as Chief Executive Officer from 2019 until February 2025, when Michael Komasinski succeeded her. She earlier spent more than two decades at Nielsen.

Previous Roles

Chief Executive Officer

Criteo (2019–2025)

Chief Commercial Officer

Nielsen (prior)

Expertise
Commerce MediaRetail Media NetworksProgrammatic AdvertisingIdentity ResolutionFirst-Party Data StrategyPrivacy-Compliant AdvertisingMedia MeasurementPerformance Marketing
Education
  • Bachelor's Degree, University of Auckland
Notable Achievements
  • Led Criteo's strategic transformation from a retargeting specialist to a commerce media platform, significantly expanding its total addressable market
  • Navigated Criteo through the deprecation of third-party cookies and major privacy regulation changes without a collapse in core business performance
  • Grew Criteo's Commerce Media Platform to connect thousands of brands, retailers, and publishers through first-party data infrastructure
  • Oversaw Criteo's acquisition and integration of assets to build out its retail media supply-side capabilities
  • Served as Chief Commercial Officer at Nielsen during a period of significant audience measurement disruption and digital transformation
Awards
AdExchanger's Most Influential People in AdTech (referenced multiple years)Business Insider Most Powerful Women in Advertising
Speaking Topics
The future of commerce media and retail media networksPrivacy-first advertising and the post-cookie ecosystemIdentity resolution and first-party data strategiesRetail media monetization for publishers and retailersCorporate transformation and leadership in AdTechMeasurement and attribution in a privacy-constrained world
Board Memberships
Criteo S.A. (Board of Directors)
Connections