Joe Greenstein is listed as Angel Investor at Joe Greenstein. Location on record: San Francisco, CA, United States. See sector focus and contact routes.
About Joe Greenstein
Joe Greenstein is listed as Angel Investor at Joe Greenstein. Location on record: San Francisco, CA, United States. This profile is categorized as Individual/Angel. A LinkedIn profile is on record. No verified website or published biography is on record for this profile yet; the details above are limited to the fields held in this database as of August 9, 2026.
Joe Greenstein at a glance
Role
Angel Investor
Location
San Francisco, CA, United States
Investor type
Individual/Angel
Focus areas
Mr. Joe Greenstein is a Co-Founder & Voracious Officer at Innerspace Labs. Mr. Joe Greenstein serves as Co-Founder at Innerspace. He was a Co-Founder & Chief Executive Officer at Flixster. Prior to Flixster, he was part of the startup team and Director of Product Management at Edusoft, a web-based curriculum and assessment platform for public school districts used by more than 4 million students nationwide. Edusoft was acquired by Houghton-Mifflin in 2003. While still an undergrad, he was a co-founder of CoreMetrics - one of the leading providers of real-time web analytics which was later acquired by IBM. He was an advisor at fbFund REV. He also serves as Strategic Limited Partner at Four Rivers Group.
Frequently asked about Joe Greenstein
What does Joe Greenstein invest in?
Joe Greenstein (San Francisco, CA, United States) — sector focus: Mr. Joe Greenstein is a Co-Founder & Voracious Officer at Innerspace Labs. Mr. Joe Greenstein serves as Co-Founder at Innerspace. He was a Co-Founder & Chief E….
How do I contact Joe Greenstein?
Joe Greenstein's published profile links (website, LinkedIn or X where available) are listed on the StartupFundraising.com investor profile.
Where is Joe Greenstein headquartered?
Joe Greenstein is based in San Francisco, CA, United States.
Details on this firm come from filing and round data held in the StartupFundraising directory, refreshed on ingest. Founders use profiles like this one to qualify fit and to shortlist investors in San Francisco.
