What is BillionToOne?
Headquartered in Menlo Park, California, BillionToOne is at the forefront of precision diagnostics, driven by its mission to enhance the accuracy, efficiency, and accessibility of molecular diagnostics. The company's proprietary QCT molecular counter platform is distinguished by its unique ability to count DNA molecules down to the single-count level. This groundbreaking technology underpins its flagship product, UNITY, which offers the first and only noninvasive prenatal screening capable of detecting cystic fibrosis (CF), spinal muscular atrophy (SMA), and hemoglobinopathies by analyzing cell-free fetal DNA from maternal blood. This innovative approach positions BillionToOne as a key player in the rapidly evolving landscape of diagnostic technology.
How much funding has BillionToOne raised?
BillionToOne has raised a total of $646.6M across 6 funding rounds:
Series A
$15M
Series B
$55M
Series C
$125M
Unspecified
$48.5M
Series D
$130M
IPO
$273.1M
Series A (2019): $15M with participation from Libertus Capital, NeoTribe Ventures, Civilization Ventures, Pacific 8 Ventures, Hummingbird Ventures, HOF Capital, Y Combinator, and 500 Startups Istanbul
Series B (2021): $55M, investors not publicly disclosed
Series C (2022): $125M supported by Adams Street Partners, Baillie Gifford, Neotribe Ventures, and Hummingbird Ventures
Unspecified (2022): $48.5M featuring Baillie Gifford, Hummingbird Ventures, Adams Street Partners, Libertus Capital, and Neotribe Ventures
Series D (2024): $130M, investors not publicly disclosed
IPO (2025): $273.1M, investors not publicly disclosed
Key Investors in BillionToOne
Hummingbird Ventures
Hummingbird Ventures is a global seed investment fund that focuses on investing in outlier founders at the earliest stages of their ventures, providing significant support throughout the lifecycle of the companies they back.
Neotribe Ventures
Neotribe Ventures is a Silicon Valley-based venture capital firm founded in 2017 that identifies and funds entrepreneurs developing breakthrough technologies with the potential to create transformative market movements.
Adams Street Partners
Founded in 1972, Adams Street Partners provides investment management services in private markets worldwide, with its headquarters located in Chicago, Illinois.
What's next for BillionToOne?
With its latest major enterprise-level funding and a recent strategic investment, BillionToOne is poised for significant expansion and further development of its QCT platform and UNITY product line. The substantial capital infusion will likely fuel advancements in research and development, enhance manufacturing capabilities, and broaden market penetration. This strategic financing indicates a strong investor confidence in BillionToOne's technology and its potential to disrupt the diagnostics market, paving the way for broader clinical adoption and the introduction of new diagnostic tests.
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