Mark Heynen
Co-Founder & CEO at Knapsack
Mill Valley, California
Mark Heynen, Co-Founder & CEO at Knapsack is an active investor based in Mill Valley, California. This profile covers what Mark Heynen backs, at which stage, and how founders can reach out in 2026.
- Investor type
- Angel
- Stages
- Pre SeedSeed
- Invests in
- FintechSaaS & EnterpriseConsumer & RetailRobotics & Automation
- Location
- Mill Valley, California
- Typical check
- $150K
- Past investments
- 4
Notable investments
How to reach Mark Heynen
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Frequently Asked Questions
What does Mark Heynen invest in?
Mark Heynen invests in Fintech, SaaS & Enterprise, Consumer & Retail and Robotics & Automation, typically at Pre Seed and Seed. Match your sector and stage, then reach out with a personalized pitch.
How do I contact Mark Heynen?
Unlock Mark Heynen's verified email on Round Funded and send a personalized pitch. We surface only deliverable contacts so your outreach lands.
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