Jonathan Weiss, Venture investor in the United States is an active investor based in United States. This profile covers what Jonathan Weiss backs, at which stage, and how founders can reach out in 2026.
Founder and General Partner of Procyon Ridge Capital and an MD candidate at WashU School of Medicine.
Jonathan Weiss invests in Healthcare & Biotech and Digital Health & HealthTech, typically at Pre Seed and Seed.
- Investor type
- VCAngel
- Stages
- Pre SeedSeed
- Invests in
- Healthcare & BiotechDigital Health & HealthTech
- Location
- United States
- Typical check
- $150K
How to reach Jonathan Weiss
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Round Funded. "Jonathan Weiss." Round Funded investor database, updated November 3, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/jonathan-weiss
Frequently Asked Questions
Who is Jonathan Weiss?
Jonathan Weiss, Venture investor in the United States is an active investor based in United States. Jonathan Weiss invests in Healthcare & Biotech and Digital Health & HealthTech, typically at Pre Seed and Seed.
What does Jonathan Weiss invest in?
Jonathan Weiss invests in Healthcare & Biotech and Digital Health & HealthTech, typically at Pre Seed and Seed. Match your sector and stage, then reach out with a personalized pitch.
What stage does Jonathan Weiss invest at?
Jonathan Weiss typically invests at Pre Seed and Seed. Lead with traction that fits the stage when you reach out.
What is Jonathan Weiss's typical check size?
Jonathan Weiss typically writes checks around $150K. Use it as a signal for whether your raise fits their stage.
How do founders reach investors like this?
Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.
What is Round Funded?
Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.