Brendan McCarthy
Brendan McCarthy is a seasoned AdTech marketing executive best known for his six-year tenure as Chief Marketing Officer at Criteo, the global commerce media and retargeting platform, where he shaped the company's brand positioning and go-to-market strategy through a period of significant industry transformation driven by privacy regulation and the deprecation of third-party cookies. In March 2026, he joined Seedtag as Chief Marketing & Communications Officer, bringing his deep programmatic and performance advertising expertise to one of Europe's leading contextual advertising platforms, which uses AI-powered technology to deliver cookieless, brand-safe advertising at scale. McCarthy's career spans the intersection of performance marketing, brand strategy, and AdTech, with a strong focus on helping technology companies articulate their value in a rapidly evolving digital advertising landscape. His move to Seedtag signals the company's ambition to accelerate its global profile as contextual advertising becomes increasingly central to the post-cookie era.
Last updated Oct 11, 2026 by ATDb automated enrichment · Connections updated Oct 12, 2026
AI-drafted from public sources1 source cited
- Years in industry
- 15 years
Bio
Brendan McCarthy is a seasoned AdTech marketing executive best known for his six-year tenure as Chief Marketing Officer at Criteo, the global commerce media and retargeting platform, where he shaped the company's brand positioning and go-to-market strategy through a period of significant industry transformation driven by privacy regulation and the deprecation of third-party cookies. In March 2026, he joined Seedtag as Chief Marketing & Communications Officer, bringing his deep programmatic and performance advertising expertise to one of Europe's leading contextual advertising platforms, which uses AI-powered technology to deliver cookieless, brand-safe advertising at scale. McCarthy's career spans the intersection of performance marketing, brand strategy, and AdTech, with a strong focus on helping technology companies articulate their value in a rapidly evolving digital advertising landscape. His move to Seedtag signals the company's ambition to accelerate its global profile as contextual advertising becomes increasingly central to the post-cookie era.
Expertise & education
Expertise
Recognition
Notable achievements
- Led global marketing at Criteo for six years, steering the brand through the industry's shift away from third-party cookies and toward privacy-first advertising solutions
- Appointed Chief Marketing & Communications Officer at Seedtag in March 2026, joining the contextual advertising platform at a pivotal moment in its international growth