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Sarah Fay

Dealmaker

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.

Last updated Jun 11, 2026 by ATDb automated enrichment · Connections updated Jun 15, 2026

Role
Managing Director
Company
Glasswing Ventures
Based
Boston, Massachusetts, United States
Boards
1
Connections
2
Years in industry
30 years

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.

Career

  • 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

Board memberships

Glasswing Ventures portfolio companies (various)

Advisory roles

Various AdTech and MarTech startups

Expertise & education

Expertise

Venture CapitalMedia Agency OperationsDigital AdvertisingConsumer PrivacyMarketing TechnologyProgrammatic AdvertisingBrand StrategyAI and Emerging Technology Investment

Education

  • BA, University of Michigan

Speaking topics

Consumer Privacy and Data EthicsThe Future of Digital AdvertisingAI and Marketing Technology InvestmentMedia Agency TransformationVenture Capital in AdTech

Recognition

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

Publications

  • Contributor to industry commentary on consumer privacy and digital advertising dynamics
Connection details