Michael Komasinski
Michael Komasinski is the Chief Executive Officer of Criteo, the commerce media company, a position he assumed in February 2025 succeeding Megan Clarken. He is recognized in the AdTech and marketing technology ecosystem for his ability to scale data-driven performance businesses and integrate technology with media strategy at enterprise level. His appointment at Criteo signals a continued focus on commerce media as a growth category, leveraging first-party data and retail media networks. Komasinski joined Criteo from dentsu, where he served as CEO of the Americas and President of Global Data & Technology, overseeing the network's data and technology capabilities across one of the world's largest agency holding groups. Prior to his broader dentsu leadership role, he was a key executive at Merkle, the data-driven performance marketing agency that was acquired by dentsu, where he helped build and scale its performance and CRM-driven advertising capabilities. With a career spanning more than 15 years across agency, technology, and data-driven marketing disciplines, Komasinski brings a rare combination of operational scale, technology fluency, and commercial acumen to Criteo. His background positions him to advance Criteo's commerce media platform strategy at a time when the industry is navigating the deprecation of third-party cookies, the rise of retail media, and increasing demand for addressable, measurable advertising solutions.
Last updated Jun 11, 2026 by ATDb automated enrichment · Connections updated Jun 15, 2026
- Years in industry
- 20 years
Bio
Michael Komasinski is the Chief Executive Officer of Criteo, the commerce media company, a position he assumed in February 2025 succeeding Megan Clarken. He is recognized in the AdTech and marketing technology ecosystem for his ability to scale data-driven performance businesses and integrate technology with media strategy at enterprise level. His appointment at Criteo signals a continued focus on commerce media as a growth category, leveraging first-party data and retail media networks. Komasinski joined Criteo from dentsu, where he served as CEO of the Americas and President of Global Data & Technology, overseeing the network's data and technology capabilities across one of the world's largest agency holding groups. Prior to his broader dentsu leadership role, he was a key executive at Merkle, the data-driven performance marketing agency that was acquired by dentsu, where he helped build and scale its performance and CRM-driven advertising capabilities. With a career spanning more than 15 years across agency, technology, and data-driven marketing disciplines, Komasinski brings a rare combination of operational scale, technology fluency, and commercial acumen to Criteo. His background positions him to advance Criteo's commerce media platform strategy at a time when the industry is navigating the deprecation of third-party cookies, the rise of retail media, and increasing demand for addressable, measurable advertising solutions.
Career
CEO, Americas & President, Global Data & Technology
dentsu · 2021-2025
CEO
Merkle · 2018-2021
President & COO
Merkle · 2015-2018
Expertise & education
Expertise
Education
- Bachelor's Degree, University of Delaware
Speaking topics
Recognition
Notable achievements
- Appointed CEO of Criteo in February 2025, succeeding Megan Clarken and leading the company's commerce media transformation
- Served as CEO of the Americas at dentsu, one of the world's largest agency holding companies
- Led Merkle as CEO, scaling it into one of the foremost data-driven performance marketing agencies before and after its dentsu acquisition
- Oversaw dentsu's Global Data & Technology practice, integrating data assets and martech capabilities across global markets