Adam Marcus

Active Investor

Co-founder & CTO at B12

New York City, New York

Adam Marcus, Co-founder & CTO at B12 is an active investor based in New York City, New York. This profile covers what Adam Marcus backs, at which stage, and how founders can reach out in 2026.

Investor type: Angel
Stages: Seed
Invests in: FintechPaymentsHealthcare & BiotechDigital Health & HealthTechSaaS & EnterpriseConsumer & RetailE-commerce & D2CEdTech
Location: New York City, New York
Typical check: $250K
Past investments: 3

Notable investments

GoDaddyB12Locu, Inc.

How to reach Adam Marcus

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Frequently Asked Questions

What does Adam Marcus invest in?

Adam Marcus invests in Fintech, Payments, Healthcare & Biotech and Digital Health & HealthTech, typically at Seed. Match your sector and stage, then reach out with a personalized pitch.