Mark Jantzen

Mark Jantzen

Active Investor

Managing Director

Cleveland, Ohio

Mark Jantzen, Managing Director is an active investor based in Cleveland, Ohio. This profile covers what Mark Jantzen backs, at which stage, and how founders can reach out in 2026.

Investor type
Micro VCPE
Stages
SeedSeries ASeries BLate Stage Venture
Invests in
FintechLending & CreditHealthcare & BiotechBiotech & PharmaDeveloper Tools & DataIoT & Connected DevicesManufacturing & IndustrialGaming & Entertainment
Location
Cleveland, Ohio
Typical check
$2M
Past investments
3

Notable investments

Weaver ExpressEnviroScienceJWI Capital, LLC

How to reach Mark Jantzen

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Frequently Asked Questions

What does Mark Jantzen invest in?

Mark Jantzen invests in Fintech, Lending & Credit, Healthcare & Biotech and Biotech & Pharma, typically at Seed, Series A, Series B and Late Stage Venture. Match your sector and stage, then reach out with a personalized pitch.

How do I contact Mark Jantzen?

Unlock Mark Jantzen's verified email on Round Funded and send a personalized pitch. We surface only deliverable contacts so your outreach lands.

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