John Flavin
Venture investor in Chicago
Chicago, Illinois
John Flavin, Venture investor in Chicago is an active investor based in Chicago, Illinois. This profile covers what John Flavin backs, at which stage, and how founders can reach out in 2026.
- Investor type
- VCIncubator
- Stages
- Series A
- Invests in
- Healthcare & Biotech
- Location
- Chicago, Illinois
- Typical check
- $1M
- Past investments
- 6
Notable investments
University of ChicagoArgonne National LaboratoryAdvanced Life SciencesMolecular FormulationsFlavin Ventures, LLCMediChem Life SciencesHow to reach John Flavin
Angels and operators like John Flavin reply to specific, personalized notes that show real traction, not mass blasts. Build a verified list, write a note that fits their thesis, and track replies, all on Round Funded.
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Cite this page
Round Funded. "John Flavin." Round Funded investor database, updated September 25, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/john-flavin
Frequently Asked Questions
What does John Flavin invest in?
John Flavin invests in Healthcare & Biotech, typically at Series A. Match your sector and stage, then reach out with a personalized pitch.
What stage does John Flavin invest at?
John Flavin typically invests at Series A. Lead with traction that fits the stage when you reach out.
What is John Flavin's typical check size?
John Flavin typically writes checks around $1M. 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.