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General Information


University of Pennsylvania, BBS
Computer Science Engineering
The Wharton School of the University of Pennsylvania, BE

Current Companies

Co-founder & CEO

Former Companies


Financial Organizations

Strategic Limited Partner

Web Presences


Photo Credit

Joe Greenstein / Flixter

Joe Greenstein

Joe is co-founder and CEO of Flixster.

Before Flixster, Joe was part of the startup team and head of product management at Edusoft - the leading provider of assessment management software to public school districts. Edusoft was bought by Houghton-Mifflin in 2003.

While still in college, Joe was part of the founding team at CoreMetrics - now one of the leading providers of web analytics for online retailers.

Recent Milestones


Company Date Round Size Participants
Twice 1/2014Series B$18.5M9
Watsi 7/2013Seed$1.2M9
Any.DO 5/2013Seed$3.5M5
Whisper 4/2013Series A$3M5
Calm 2/2013Seed$415k12
Scan 2/2012Seed$1.7M12
ClassDojo 1/2012Seed$1.6M15 1/2011Series A$5M12
Sofa Labs 9/2009Series A$1.2M11
Eventbrite 12/2008Series A$1.5M13



  1. Secondhand Clothing Marketplace Twice Raises $18.5M From Andreessen Horowitz ( [edit]
  2. Healthcare Crowdfunding Platform Watsi Grabs $1.2M From Tencent, Paul Graham, Vinod Khosla, Ron Conway And More ( [edit]
  3. Sleek to-do app Any.Do nabs $3.5M from Genesis Partners, Eric Schmidt, & others ( [edit]
  4. Ultra-Hot Secret Sharing App Whisper Raises $3 Million From Lightspeed, Trinity, And Others ( [edit]
  5. Relaxation Resource Launches iPhone App That Helps You Chill, Grabs $415K In Angel Funding ( [edit]
  6. Scan Gets $1.7M From Google Ventures And Shervin Pishevar To Make QR Codes Actually Useful ( [edit]
  7. ClassDojo Lands $1.6M From Paul Graham, Ron Conway To Help Teachers Control Their Classrooms ( [edit]
  8. Inside Facebook ( [edit]
  9. Raises $1.2 Million For Facebook-Powered Matchmaking Service ( [edit]
  10. Citation Needed [add]
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Last Edited 3/20/14

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