Primer Ventures
Venture capitalPalo Alto
Find your way into Primer Ventures
Fund manager profile
Primer Ventures is a venture fund manager based in Palo Alto. SEC filings show 1 venture fund on record, most recently Primer Ventures I, LP filed September 2024.
Source: SEC EDGAR Form D filings. Firm website data not yet available.
What they invest in
from 1 of 1 portfolio companiesBiotech ×1Deep Tech ×1Healthtech ×1Medical Devices ×1
HQs:United States×1
Investments · 1 tracked
founders shown can be your intro path
Countable Labs (formerly Enumerix) develops Countable PCR, a DNA quantification technology that provides absolute target counts at single-molecule resolution as an alternative to qPCR, digital PCR, and NGS.
BiotechDeep TechHealthtechMedical DevicesPalo Alto, US
Stephen Fodor(Co-Founder & Board Director)Ari Chaney(Co-Founder & Board Director)inChristina Fan(Co-founder + CTO)inGiovanna Prout(Chief Executive Officer)in
Co-investorsF-Prime CapitalARCH Venture Partners
Portfolio news
latest coverage across their companiesCountable Labs · devx.com · Jun 5, 2026
Frequently asked questions
- Where is Primer Ventures located?
- Primer Ventures is headquartered in Palo Alto, US.