Mark Jantzen
Managing Director at JWI Capital, LLC
Cleveland, Ohio
Mark Jantzen, Managing Director at JWI Capital, LLC 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
- Manufacturing & IndustrialSupply Chain & LogisticsHealthcare & Biotech
- Location
- Cleveland, Ohio
- Typical check
- $2M
- Past investments
- 3
Notable investments
How to reach Mark Jantzen
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Connect with Mark Jantzen
Frequently Asked Questions
What does Mark Jantzen invest in?
Mark Jantzen invests in Manufacturing & Industrial, Supply Chain & Logistics and Healthcare & Biotech, typically at Seed, Series A, Series B and Late Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does Mark Jantzen invest at?
Mark Jantzen typically invests at Seed, Series A, Series B and Late Stage Venture. Lead with traction that fits the stage when you reach out.
What is Mark Jantzen's typical check size?
Mark Jantzen typically writes checks around $2M. Use it as a signal for whether your raise fits their stage.
How do I contact Mark Jantzen?
Unlock Mark Jantzen's verified email on Round Funded Accelerator and send a personalized pitch. We surface only deliverable contacts so your outreach lands.