Sarah Fay is the Managing Director at Glasswing Ventures, a Boston-based venture capital firm. See sector focus and contact routes.
Sarah Fay is the Managing Director at Glasswing Ventures, a Boston-based venture capital firm, where she leverages a prior background as a three-time chief executive officer in media services, including leading Aegis Media North America. Her investment thesis targets early-stage artificial intelligence, frontier technology, and enterprise software startups, with a specific focus on marketing technology, digital, and B2B marketplaces. Fay has led investments in pre-seed companies, indicating a willingness to back startups at their earliest stages. Notable portfolio companies include Narrative I/O, Molecular Inc., and Isobar, reflecting her deep ties to the digital marketing ecosystem. As the Chair of the Board of Directors for publicly traded Ziff Davis and Co-Lead of the All Raise Boston Chapter, she combines operational executive experience with active community leadership in venture capital. Fay is recognized as an industry thought leader who has been widely quoted in major publications like the New York Times and Wall Street Journal on topics of digital marketing and media integration. She recently discussed "Authentic Intelligence" in public writin
StartupFundraising tracks this investor record from SEC filings and announced rounds, updating focus, location and portfolio history as new data lands. Use it to gauge fit before an outreach, then widen the search to investors in Boston.
Investors like Sarah Fay · Full investor directory · Investor access · Company funding database