Petri
Petri is a Pre-Seed, Seed venture capital firm based in Cambridge, MA investing in Healthcare, Other. The firm typically writes $500K–$5.0M checks and has 2 portfolio companies in our records.
- Check size
- $500K–$5.0M
- Portfolio
- 2 companies on record
- Partners
- 1 listed
- Stage
- Pre-Seed, Seed
- Sectors
- Healthcare, Other
- HQ
- Cambridge, MA
- AUM
- Not in our records
Last verified: 2026-06-28
Pre-Seed, Seed
$500K – $5.0M
2+ companies
1 partner
Investment Thesis
Supports biotech and life sciences startups building transformational companies that solve big, meaningful problems.
How Petri invests
Petri is a vc firm based in Cambridge, MA. The firm invests at the Pre-Seed, Seed stages, with a focus on Healthcare, Other.
Petri typically writes checks of $500K–$5.0M per investment.
Petri has backed 2 companies in our records, including Vaxess Technologies, Cellino Biotech.
Partners & Team
Katie Rae
Managing Partner
Industry Focus
Invests In
Portfolio Companies (2)
Other
Vaxess Technologies
Cellino Biotech
- •Raising at Pre-Seed, Seed? You're squarely in their sweet spot.
- •Lead with your fit in Healthcare, Other — the sectors they actively back.
- •Size your ask to their typical $500K – $5.0M check.
- •cold outreach ok
- •Address your outreach to a specific partner, such as Katie Rae, Managing Partner.
- •A warm introduction beats a cold email. Get matched and request an intro.
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