John Heinlein, Angel investor in San Jose is an active investor based in San Jose, California. This profile covers what John Heinlein backs, at which stage, and how founders can reach out in 2026.
John Heinlein is a CMO focused on driving the transition to AI-defined vehicles and advanced AI systems.
John Heinlein invests in Artificial Intelligence, Automotive & EV and Hardware & Deep Tech, typically at Seed and Series A.
- Investor type
- Angel
- Stages
- SeedSeries A
- Invests in
- Artificial IntelligenceAutomotive & EVHardware & Deep Tech
- Location
- San Jose, California
- Typical check
- $625K
How to reach John Heinlein
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About this profile
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Round Funded. "John Heinlein." Round Funded investor database, updated November 2, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/john-heinlein
Frequently Asked Questions
Who is John Heinlein?
John Heinlein, Angel investor in San Jose is an active investor based in San Jose, California. John Heinlein invests in Artificial Intelligence, Automotive & EV and Hardware & Deep Tech, typically at Seed and Series A.
What does John Heinlein invest in?
John Heinlein invests in Artificial Intelligence, Automotive & EV and Hardware & Deep Tech, typically at Seed and Series A. Match your sector and stage, then reach out with a personalized pitch.
What stage does John Heinlein invest at?
John Heinlein typically invests at Seed and Series A. Lead with traction that fits the stage when you reach out.
What is John Heinlein's typical check size?
John Heinlein typically writes checks around $625K. 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.