Oguzhan Atay
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Oguzhan Atay, PhD, is the co-founder and CEO of BillionToOne. He co-founded BillionToOne with David Tsao, PhD, and the company was founded in 2016. BillionToOne develops blood-based tests in prenatal screening and oncology, including Unity Complete and the Northstar liquid biopsy tests. Atay is known for co-founding BillionToOne and leading the company as it builds cfDNA-based testing from a single blood draw.
Updated 9 September 2026
Public sources: billiontoone.com ycombinator.com
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