United States · 
Who invested in Ansa Biotechnologies?
Ansa Biotechnologies's investors include Y Combinator, National Science Foundation, RA Capital Management and Fifty Years.
United States · Series B startup
Who invested in Ansa Biotechnologies
One round we have observed, with the 4 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.
Funding summaryUpdated 26 Oct 2026
$45Mraised across 1 round since 2025, from 1 source
- Latest round
- Series B, $45MOct 2025
- Investors
- 4
The rounds
- Oct 2025Series B$45M
Source recordedSEC filing: $45M sold, first sale Jun 2024
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
This firm lists Ansa Biotechnologies as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.
Quick answers about Ansa Biotechnologies
How much has Ansa Biotechnologies raised?
Ansa Biotechnologies has raised $45M across 1 round since 2025.
When did Ansa Biotechnologies last raise?
Ansa Biotechnologies's most recent round was a Series B of $45M in Oct 2025.
What was Ansa Biotechnologies's biggest round?
Its most recent round, $45M in Oct 2025, is also its largest on record.
Who backed Ansa Biotechnologies first?
Ansa Biotechnologies's first round on record, in Oct 2025, was backed by Y Combinator, National Science Foundation and RA Capital Management and 1 others.
What stage is Ansa Biotechnologies at?
Ansa Biotechnologies's latest named round is a Series B, in Oct 2025.
Where is Ansa Biotechnologies based?
Ansa Biotechnologies is based in the United States.
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