§ Founder & Investor Profile

Joe Greenstein

Founder/Zookeeper's Assistant at Leaders In Tech

Updated:Apr 2, 2026

Recent News & Mentions

Nov 21, 2024FundingCoremetrics - Series E Jan 1, 2024FundingInnerSpace - Seed Aug 11, 2023FundingInnerSpace - Series A Mar 1, 2019FundingInnerSpace - Seed Apr 1, 2008FundingFlixster - Series B Jan 1, 2007FundingFlixster - Series A Mar 8, 2006FundingCoremetrics - Other Equity Mar 1, 2006FundingCoremetrics - Series D

Experience

Strategic Limited PartnerCurrent

Four Rivers Group

Present - Present

AssociateCurrent

Signia Venture Partners

Present - Present

Product ManagerCurrent

Joe Greenstein Ventures

Present - Present

Co-founder & Zookeeper's AssistantCurrent

InnerSpace

Present - Present

Co-founder, Lead ArchitectCurrent

Coremetrics

Present - Present

Founder/Zookeeper's AssistantFounderCurrent

Frequently Asked Questions

Who is Joe Greenstein?

Joe Greenstein is Strategic Limited Partner at Four Rivers Group.

What companies has Joe Greenstein founded?

Joe Greenstein has founded companies and has also been involved with Signia Venture Partners, Kenamea, QApro, Joe Greenstein Ventures, InnerSpace, Coremetrics, Leaders In Tech, Flixster.

Loading people...