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BillionToOne

The genetic testing platform detecting and measuring disease.

y-combinatorSummer 2017DiagnosticsGenomics🇺🇸 San Francisco300 peoplehiring

500 Global · 2017

Public

David Tsao, Oguzhan Atay +1 · 3 co-founders

2026Public
Public
Team
300
current
Co-founders
3
current
Stage
Public
Profile coverage4 of 8 · missing Funding, Signals, Customers, Stack / tools · last run 8/11/2026

About

BillionToOne has developed a DNA molecular counter that increases the cell-free DNA diagnostics resolution by over 1,000 fold, which unlocks transformative improvements in prenatal screening and liquid biopsy for cancers. Unity Screen, BillionToOne's commercially available non-invasive prenatal test (NIPT), is the only NIPT that can assess fetal risk for both recessive conditions and aneuploidies from maternal blood. UNITY Screen continues to grow exponentially and is on its path to becoming the next standard-of-care, with an increasing number of publications showing its accuracy and advantages over other screening methods. We have also recently used our molecular counting technology to develop liquid biopsy tests, which have the potential to completely transform oncology care.

3 founders