We are a team of scientists and engineers that brings together diverse sets of expertise from quantitative biology to machine learning. We are a Y Combinator (S17) company and are backed by prominent institutional investors across the world.

Oguzhan Atay, PHD

Co-founder and CEO

Oguzhan is responsible for implementing BillionToOne's vision and for all day-to-day management decisions. During his PhD at Stanford, he has combined machine learning and genetics to solve problems in cell biology. His PhD research has been featured as Cover Article in Cell Systems, and his work has been published in high-impact peer-reviewed journals, including Cell and Journal of Cell Biology.

Previously, Oguzhan graduated summa cum laude and Phi Beta Kappa from Princeton University with a Bachelor's in Molecular Biology and minors in Physics, Computer Science, and Applied Mathematics. When not working, he loves reading science fiction.

David TSAO, PHD

Co-founder and CTO

David leads development of BillionToOne's bioinformatics pipeline and is the source behind many of the technological developments at BillionToOne. He has a PhD in Bioengineering from Rice University. Before his PhD, he was a software engineer at Adku and Groupon, where he leveraged big data to build recommendation engines and search engine marketing solutions.

David earned an AB in Physics from Princeton University. When not coding or pipetting, he enjoys rock climbing, backpacking and pursuing the perfect cup of coffee.