Primer Ventures — 2026 Investments
1 investments dated 2026 · listed companies and verified rows first · show all
Countable Labscountablelabs.comin𝕏Jun 2026
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
Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.




