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Sarah Fay

Managing Director at Glasswing Ventures

Venture investing at the intersection of AI, advertising, and consumer privacy advocacy

DealmakerBoston, Massachusetts, United States30+ years in industry

Last updated Jun 11, 2026 by ATDb automated enrichment

Bio

Sarah Fay is Managing Director at Glasswing Ventures, where she applies three decades of senior leadership experience in media and advertising to the venture capital space. Her career spans executive roles at Carat Americas (Dentsu Aegis Network), Aegis Media, and Publicis Groupe, giving her deep operational insight into the forces shaping modern marketing and technology. A credentialed industry veteran, she has become a prominent voice on issues of consumer privacy and the structural dynamics of digital advertising.

Previous Roles

CEO

Carat Americas (Dentsu Aegis Network) (2006-2010)

CEO

Aegis Media North America (2010-2012)

Executive Vice President

Publicis Groupe (2012-2015)

Operating Partner / Advisor

Various AdTech Ventures (2015-2019)

Expertise
Venture CapitalMedia Agency OperationsDigital AdvertisingConsumer PrivacyMarketing TechnologyProgrammatic AdvertisingBrand StrategyAI and Emerging Technology Investment
Education
  • BA, University of Michigan
Notable Achievements
  • Led Carat Americas as CEO, overseeing one of the largest media agency networks in North America
  • Transitioned from decades of agency leadership into venture capital as Managing Director at Glasswing Ventures, applying operational expertise to AI-driven technology investments
  • Recognized as a prominent industry voice on consumer privacy and the structural dynamics of digital advertising
Awards
Advertising Age Women to WatchAdweek Media All-Star
Speaking Topics
Consumer Privacy and Data EthicsThe Future of Digital AdvertisingAI and Marketing Technology InvestmentMedia Agency TransformationVenture Capital in AdTech
Publications
  • Contributor to industry commentary on consumer privacy and digital advertising dynamics
Board Memberships
Glasswing Ventures portfolio companies (various)
Advisory Roles
Various AdTech and MarTech startups
Connections