BillionToOne Funding: $300M Raised, Series D (2025)
BillionToOne is a Biotech company based in Menlo Park, California. It has raised $300M in total funding. Latest round: Series D. Backed by Y Combinator.
BillionToOne funding overview
BillionToOne is a Biotech company based in Menlo Park, California. BillionToOne has raised $300M in total disclosed funding. That places its disclosed total in the $250M–$1B range. Its most recent disclosed round is a Series D announced in November 2025. The round record for BillionToOne runs through 2025; nothing later has been disclosed. Investors on record include Y Combinator.
BillionToOne at a glance
Total raised
$300M
Latest round
Series D
Latest round date
November 2025
Industry
Biotech
Headquarters
Menlo Park, California
Notable investors
Y Combinator
Frequently asked about BillionToOne funding
How much has BillionToOne raised?
BillionToOne has raised $300M in total disclosed funding across the rounds on record.
Who has invested in BillionToOne?
Y Combinator are named among the investors backing BillionToOne.
What was the latest BillionToOne funding round?
The most recent disclosed round is a Series D, announced in November 2025.
Where is BillionToOne based?
BillionToOne is based in Menlo Park, California.
What sector does BillionToOne operate in?
BillionToOne is tracked under Biotech from Menlo Park, California, with $300M in disclosed funding.
When did BillionToOne last raise?
The last disclosed BillionToOne round closed in November 2025 at Series D.
BillionToOne totals reflect disclosed capital only — undisclosed extensions and secondaries are excluded. Use the related Biotech companies in Menlo Park below to benchmark round size and investor mix.
