Jonathan Birnbaum
Founder & CEO at OpenYield at OpenYield
New York City, New York
Jonathan Birnbaum, Founder & CEO at OpenYield at OpenYield is an active investor based in New York City, New York. This profile covers what Jonathan Birnbaum backs, at which stage, and how founders can reach out in 2026.
- Investor type
- AngelInvestment Bank
- Stages
- Pre SeedSeedSeries BLate Stage Venture
- Invests in
- FintechHealthcare & BiotechSaaS & EnterpriseConsumer & Retail
- Location
- New York City, New York
- Typical check
- $1.6M
- Past investments
- 8
Notable investments
How to reach Jonathan Birnbaum
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Frequently Asked Questions
What does Jonathan Birnbaum invest in?
Jonathan Birnbaum invests in Fintech, Healthcare & Biotech, SaaS & Enterprise and Consumer & Retail, typically at Pre Seed, Seed, Series B and Late Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
How do I contact Jonathan Birnbaum?
Unlock Jonathan Birnbaum's verified email on Round Funded and send a personalized pitch. We surface only deliverable contacts so your outreach lands.
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