Billion To One
NASDAQ: BLLNYC S17 ↗San Francisco, US · Founded 2016 · 300 employees · Public · 20 known investors
BillionToOne is a precision diagnostics company that uses molecular counting technology to develop non-invasive prenatal screening and liquid biopsy tests for early disease detection. The company focuses on making molecular diagnostics accurate, fast, and accessible to patients.
BiotechDigital HealthHealthtechMedical DevicesDiagnosticsGenomicsin /billiontoone/@billiontooneincycombinator.com ↗

Founders & leadership· Y Combinator alumni (S17)
Investors · 20
500 Emerging EuropeAmsterdam
Asymmetry VenturesRichmond · $125K – $500Kvia Rob Ness · inferred
Civilization Ventures Management, LlcTiburon · $1M – $10M
e2vc
Fifty YearsSan Francisco · $250K – $2M
FrialeNashville · $100K – $600Kvia Bryan Frist · inferred
Hemisphere Ventures LLC
HOF CapitalNew York · $25K – $15M
Hummingbird VenturesBelgium · $500K – $10M
MetaplanetTallinn · $500K – $10M
Neotribe VenturesMenlo Park · $250K – $2M
Oberland CapitalNew York · $50M – $300M
Premji InvestMenlo Park
Standard CapitalSan Francisco
Start Capital
Time BioVenturesSouthern California
Toba CapitalIrvine · $1M – $10M
UpHonest CapitalSilicon Valley · $50K – $1M
Y CombinatorSan Francisco · $500K
Lombardstreet VenturesreportedWoodside · $500K
In the news
- BillionToOne CPO Sakakibara Shan Riku sells $1m in company stock By Investing.cominvesting.com · 2026
- BillionToOne SVP sells $169,920 in stock By Investing.comca.investing.com · 2026
- Guggenheim raises BillionToOne stock price target to $120 on reimbursement progress By Investing.cominvesting.com · 2026
- Molecular Diagnosis Firm BillionToOne Raises $273 Million in IPO - Bloombergbloomberg.com · 2025
- Diagnostics Firm BillionToOne Files for US IPO Despite Shutdown - Bloombergbloomberg.com · 2025
- Leading Molecular Diagnostics Company BillionToOne Raises $130 Million in Oversubscribed Series D Funding Over $1B+ Valuationprnewswire.com · 2024
- BillionToOne raises $130M at $1B-plus valuation for precision diagnosticsaxios.com · 2024
- BillionToOne Closes $125M Series C Funding with Premier Global Investorslinkedin.com · 2022
