John Hartner
Angel investor in West Palm Beach
West Palm Beach, Florida
John Hartner, Angel investor in West Palm Beach is an active investor based in West Palm Beach, Florida. This profile covers what John Hartner backs, at which stage, and how founders can reach out in 2026.
- Investor type
- Angel
- Stages
- Pre SeedSeed
- Invests in
- Healthcare & BiotechSaaS & EnterpriseDeveloper Tools & DataHardware & Deep TechRobotics & AutomationManufacturing & IndustrialGaming & EntertainmentMedia & Content
- Location
- West Palm Beach, Florida
- Typical check
- $150K
- Past investments
- 4
Notable investments
How to reach John Hartner
Angels and operators like John Hartner 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 Accelerator.
Connect with John Hartner
Frequently Asked Questions
What does John Hartner invest in?
John Hartner invests in Healthcare & Biotech, SaaS & Enterprise, Developer Tools & Data and Hardware & Deep Tech, typically at Pre Seed and Seed. Match your sector and stage, then reach out with a personalized pitch.
What stage does John Hartner invest at?
John Hartner typically invests at Pre Seed and Seed. Lead with traction that fits the stage when you reach out.
What is John Hartner's typical check size?
John Hartner typically writes checks around $150K. Use it as a signal for whether your raise fits their stage.
How do I contact John Hartner?
Unlock John Hartner's verified email on Round Funded Accelerator and send a personalized pitch. We surface only deliverable contacts so your outreach lands.