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Seedtag Appoints Brendan McCarthy as CMO for Global Growth


Seedtag Appoints Brendan McCarthy as CMO for Global Growth
  • by: Source Logo
  • |
  • March 4, 2026

Seedtag has appointed Brendan McCarthy as its new Chief Marketing & Communications Officer to lead the company's global marketing and communications strategy. This move supports Seedtag's international expansion and advances its leadership in privacy-first, Neuro-Contextual advertising across the open web and CTV.

Quick Intel

  • Seedtag appoints Brendan McCarthy as Chief Marketing & Communications Officer to drive global marketing, communications, and brand strategy.
  • McCarthy brings over 20 years of experience, including his previous role as CMO at Criteo, where he repositioned the company as an AI-centric commerce media platform.
  • His background includes senior marketing roles at Nielsen, Samsung, and eBay, focusing on data-driven, creative, and thought-leadership approaches.
  • The appointment aligns with Seedtag's strong momentum, including 46% year-over-year revenue growth in North America in 2025.
  • McCarthy will oversee a global team to advance the brand, generate demand, and position Seedtag as the leader in AI-driven, privacy-centric advertising via its proprietary Neuro-Contextual platform, Liz.
  • Seedtag's Neuro-Contextual Advertising uses AI built on neuroscience to decode real-time interest, emotion, and intent for relevant, cookieless ad experiences.

Strategic Leadership for Global Expansion

Brendan McCarthy's appointment strengthens Seedtag's executive team at a critical growth phase. Reporting directly to CEO Brian Gleason, McCarthy will guide the evolution of the company's marketing and communications efforts to support rapid international scaling.

His extensive experience transforming marketing organizations and repositioning brands in competitive ad tech landscapes positions him to accelerate Seedtag's mission of delivering privacy-first solutions that prioritize consumer trust and measurable performance.

Advancing Neuro-Contextual Advertising Leadership

Seedtag continues to differentiate itself through its proprietary AI platform, Liz, which applies neuroscience principles to enable contextual understanding without user tracking. McCarthy's leadership will focus on amplifying this innovation, building deeper brand connections, and driving demand across key channels including CTV, video, and the open web.

The role emphasizes integrated marketing as a growth engine, aligning communications with business objectives to capitalize on rising demand for cookieless, high-quality advertising solutions.

Brian Gleason, CEO of Seedtag, said: "At Seedtag, we believe the future of advertising isn't about tracking people— it's about understanding them. Brendan brings the rare ability to turn vision into momentum and innovation into impact. As we expand Liz and our Neuro-Contextual platform globally, his leadership will help brands connect with audiences in more meaningful, measurable ways."

McCarthy added: "Seedtag has proven it can disrupt the status quo with a years-long track record of rapid growth in mature advertising markets. I'm confident we can accelerate that momentum by aligning our brand and global communications to drive even more value for our clients. We have a unique opportunity to lead the category as the premier AI-driven partner for brands that value both innovation and consumer trust."

This strategic hire underscores Seedtag's commitment to innovation, privacy, and performance in an evolving advertising ecosystem.

 

About Seedtag

Seedtag is the creator of Neuro-Contextual Advertising. Applying Liz, the company's proprietary AI built on neuroscience, Seedtag decodes real-time interest, emotion, and intent to deliver relevant, privacy-first advertising across CTV, video, and the open web. Seedtag's Contextual OS makes context the foundation of modern planning, helping brands build deeper connections that drive performance, while empowering publishers to maximize the value of quality content.

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