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Gilles Chetelat

Operator

Gilles Chetelat is the co-founder and CEO of mediarithmics, a Paris-based Customer Data Platform (CDP) and data marketing infrastructure provider. The company enables media owners, publishers, and advertisers to collect, unify, and activate first-party data in a privacy-compliant way, positioning itself as an alternative to US-dominated adtech stacks for European enterprises. Under Chetelat's leadership, mediarithmics has grown into a recognized player in the European data and adtech landscape, working with major media groups and brands on first-party data strategies, audience segmentation, and cookieless advertising solutions. His work sits at the intersection of data engineering, media monetization, and privacy regulation, areas of increasing strategic importance as third-party cookies are deprecated and GDPR enforcement intensifies.

Last updated Nov 5, 2026 by ATDb automated enrichment

Role
CEO
Company
mediarithmics
Based
Paris, France
Connections
1

AI-drafted from public sources1 source cited

Years in industry
15 years

Bio

Gilles Chetelat is the co-founder and CEO of mediarithmics, a Paris-based Customer Data Platform (CDP) and data marketing infrastructure provider. The company enables media owners, publishers, and advertisers to collect, unify, and activate first-party data in a privacy-compliant way, positioning itself as an alternative to US-dominated adtech stacks for European enterprises. Under Chetelat's leadership, mediarithmics has grown into a recognized player in the European data and adtech landscape, working with major media groups and brands on first-party data strategies, audience segmentation, and cookieless advertising solutions. His work sits at the intersection of data engineering, media monetization, and privacy regulation, areas of increasing strategic importance as third-party cookies are deprecated and GDPR enforcement intensifies.

Career

Roles with a cited source. All linked roles are in the Roles tab.

Expertise & education

Expertise

Customer Data PlatformsFirst-Party Data StrategyProgrammatic AdvertisingData ActivationPrivacy-Compliant MarketingAudience SegmentationAdTech InfrastructureCookieless Advertising

Speaking topics

First-party data and the cookieless futureCustomer Data Platforms for media companiesPrivacy-compliant data activation in Europe

Recognition

Notable achievements

  • Co-founded mediarithmics and scaled it into a leading European CDP for media and advertising use cases
  • Positioned mediarithmics as a key platform for publishers and advertisers adapting to post-cookie, GDPR-compliant data strategies
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