John Grossman
Angel investor in Waltham
Waltham, Massachusetts
John Grossman, Angel investor in Waltham is an active investor based in Waltham, Massachusetts. This profile covers what John Grossman backs, at which stage, and how founders can reach out in 2026.
- Investor type
- Angel
- Stages
- Pre SeedSeed
- Invests in
- Artificial IntelligenceHealthcare & BiotechDigital Health & HealthTechBiotech & PharmaSaaS & EnterpriseClimate & EnergyIoT & Connected Devices
- Location
- Waltham, Massachusetts
- Typical check
- $150K
- Past investments
- 6
Notable investments
How to reach John Grossman
Angels and operators like John Grossman 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 Grossman
Frequently Asked Questions
What does John Grossman invest in?
John Grossman invests in Artificial Intelligence, Healthcare & Biotech, Digital Health & HealthTech and Biotech & Pharma, typically at Pre Seed and Seed. Match your sector and stage, then reach out with a personalized pitch.
What stage does John Grossman invest at?
John Grossman typically invests at Pre Seed and Seed. Lead with traction that fits the stage when you reach out.
What is John Grossman's typical check size?
John Grossman typically writes checks around $150K. Use it as a signal for whether your raise fits their stage.
How do I contact John Grossman?
Unlock John Grossman's verified email on Round Funded Accelerator and send a personalized pitch. We surface only deliverable contacts so your outreach lands.