Sarah Hammer, Venture investor in Boston is an active investor based in Boston, United States. This profile covers what Sarah Hammer backs, at which stage, and how founders can reach out in 2026.
Sarah Hammer, Ph.D. is passionate about deploying innovative technologies to improve the well-being of people and the planet.
Sarah Hammer invests in Healthcare & Biotech, Climate & Energy and Biotech & Pharma, typically at Early Stage Venture, Seed and Series A.
- Investor type
- VC
- Stages
- Early Stage VentureSeedSeries A
- Invests in
- Healthcare & BiotechClimate & EnergyBiotech & Pharma
- Location
- Boston, United States
- Typical check
- $500K
How to reach Sarah Hammer
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Cite this page
Round Funded. "Sarah Hammer." Round Funded investor database, updated November 3, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/sarah-hammer
Frequently Asked Questions
Who is Sarah Hammer?
Sarah Hammer, Venture investor in Boston is an active investor based in Boston, United States. Sarah Hammer invests in Healthcare & Biotech, Climate & Energy and Biotech & Pharma, typically at Early Stage Venture, Seed and Series A.
What does Sarah Hammer invest in?
Sarah Hammer invests in Healthcare & Biotech, Climate & Energy and Biotech & Pharma, typically at Early Stage Venture, Seed and Series A. Match your sector and stage, then reach out with a personalized pitch.
What stage does Sarah Hammer invest at?
Sarah Hammer typically invests at Early Stage Venture, Seed and Series A. Lead with traction that fits the stage when you reach out.
What is Sarah Hammer's typical check size?
Sarah Hammer typically writes checks around $500K. 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.