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Sarah Fay

Investor

Managing Director at Glasswing Ventures · Board director at Labviva · Board director at Socialflow

Boston, Massachusetts

Writes $100K – $5M checks · typically $1.5M

Find your path to Sarah

252 people in our graph can introduce you to Sarah.

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Ask Siamak to introduce you to Sarah

You →Siamak · together at Labviva (2019–2023) →Sarah

Ask Jamie Chen to introduce you to Sarah

You →Jamie · together at Narrative I/O →Sarah

Ask Sam Okafor to introduce you to Sarah

You →Sam · 2 people · together at Carat Freeman →Sarah

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About

Sarah Fay serves as Non-Executive Board Chair of Ziff Davis and has held board positions at numerous technology and digital media companies, several of which were subsequently acquired. From 1998 to 2009, she held executive roles at Aegis Media North America, including CEO and president of its largest divisions, where she oversaw six acquisitions and integrated digital marketing with traditional media services. Since 2016, she has been an investor in early-stage artificial intelligence companies through her partnership at Glasswing Ventures and is active in ESG, diversity, and equity initiatives through her work with organizations including PRI and All Raise.

Board director at Labviva

Intro paths

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In turn, Sarah can intro founders to Labviva's investors below.

Labviva's investors · 7

53 StationsChicago · since 2025B Capital GroupSan Francisco · $10M – $50M checksB4 Capital$10M – $50M checksBIOSPRING PARTNERSNew York · since 2025Glasswing VenturesBoston · $100K – $5M checks · since 2025MassVenturesWaltham · $250K – $500K checksVillage GlobalCovina · $500K – $3M checks

Co-founders at Labviva

S
Siamak
SBSiamak Baharloo
Siamak BaharlooExecutive Officer, Director

Board director at Socialflow

Intro paths

→

In turn, Sarah can intro founders to Socialflow's investors below.

Socialflow's investors · 4

Gefinor CapitalSmiths Parish · $2M – $5M checksGlasswing VenturesBoston · $100K – $5M checks · since 2015InnerProduct PartnersSan Francisco · since 2015Lerer HippeauNew York · $500K – $2M checks

Co-founders at Socialflow

FS
Francis Speiser, Jr.Executive Officer
FX
Francis X SpeiserExecutive Officer, Director

Experience

  1. Ziff DavisChair Of The Board Of Directorscurrent2018 — presentGlobal
  2. All RaiseSteering Committee Co-Lead, Boston Chapter2019 — 2023Boston, Massachusetts, United States
  3. Narrative I/OMember Board Of Directors2019 — 2023New York, New York, United States
  4. Glasswing VenturesPartner2016 — 2023Boston
  5. LabvivaMember Board Of Directors2019 — 2023Boston, Massachusetts, United States
  6. Self-employedFree Agent2009 — 2016Greater Boston Area
  7. Aegis Media North AmericaCEO2008 — 2009
  8. IsobarPresident2006 — 2008
  9. Carat InteractivePresident2000 — 2005
  10. Carat FreemanManaging Director1996 — 2000
  11. Miller FreemanEast Coast Regional Manager1988 — 1993
  12. M&T PublishingEast Coast Regional Manager1986 — 1993

Skills & more

Digital Strategy99Mobile Marketing99Digital Marketing99Brand Management19Integrated Media7Marketing Communications20Advertising99Media Relations10New Media67Digital Media99Online Advertising59Interactive Marketing22
+12 moreSEMIntegrated MarketingAdvertising SalesAnalyticsStart-upsStrategic PartnershipsSocial NetworkingContent StrategyLeadershipStrategic PlanningMarketing StrategyMobile Advertising

From Sarah's professional profile.

Deals · 1

SocialflowBoard seat

via Glasswing Ventures · filed Jul 2015 · $10M raise

Attribution from SEC filings, press coverage, and firm rosters.

Other disclosed investments

Board seats

Narrative I/O

Sources: SEC Form D filings · curated public sources.

Colleagues at Glasswing Ventures

Alex "Sandy" Pentland
Investor at Glasswing Ventures
Alexander Ashavsky
Managing Director, Data Science and Engineering at Deerfield Management Company
Ali Mahmoud
Principal at Glasswing Ventures
Barbara Goose
Investor at Glasswing Ventures
Ben Cary
Controller and Operations Director at Glasswing Ventures
Brittany Hernandez
Operations Manager at Glasswing Ventures
Cynthia Breazeal
Investor at Glasswing Ventures
Dave Knox
Managing Partner at Vine Street Ventures

Network2

Ali MahmoudScout
Principal at Glasswing Ventures
Bob HowerScout
Co-Founder and Partner at G20 Ventures

Investors connected to Sarah in public investor directories — a warm-intro map.

Frequently asked questions

Who is Sarah Fay?
Sarah Fay serves as Non-Executive Board Chair of Ziff Davis and has held board positions at numerous technology and digital media companies, several of which were subsequently acquired. From 1998 to 2009, she held executive roles at Aegis Media North America, including CEO and president of its largest divisions, where she oversaw six acquisitions and integrated digital marketing with traditional media services. Since 2016, she has been an investor in early-stage artificial intelligence companies through her partnership at Glasswing Ventures and is active in ESG, diversity, and equity initiatives through her work with organizations including PRI and All Raise.
Where does Sarah Fay work?
Sarah Fay is Managing Director at Glasswing Ventures and Board director at Labviva and Board director at Socialflow.
What check size does Sarah Fay write?
Sarah Fay typically writes checks of $100K – $5M.
What boards does Sarah Fay sit on?
Sarah Fay holds tracked board seats at Narrative I/O, Socialflow.
What companies has Sarah Fay invested in?
Investments tracked here include Elsy, Labviva, Namely, Narrative.
Where did Sarah Fay go to school?
Sarah Fay studied at University of Vermont.

Same school

Shared employers