Key Takeaways
- BioStack raised $9.5 million in seed funding to build clinical data infrastructure for medical AI training.
- Snorkel AI's $350 million raise for AI data infrastructure is about 37 times BioStack's seed round.
- Peak XV led the BioStack seed round alongside other investors, including Afore Capital, DCVC and Y Combinator.
- BioStack was founded in October 2025, has 10 employees and took part in Y Combinator's Spring 2026 batch.
BioStack, a San Francisco-based healthcare AI startup, raised $9.5 million in seed funding led by Peak XV and other investors, Digital Health News reported on October 23, 2026. The company is building clinical data infrastructure that helps AI laboratories train and evaluate medical AI models using structured clinical and preclinical records.
Voice of Healthcare attributes the round to a report by Axios and places it within a broader investment trend in AI data infrastructure for healthcare. The article names Snorkel AI, which raised $350 million for AI data infrastructure. Snorkel AI's raise is about 37 times BioStack's $9.5 million seed round. Put the other way, BioStack's round is about 1/37 of that raise.
BioStack seed round: Peak XV, other investors and the use of funds
Digital Health News names Peak XV as the lead investor. Afore Capital, DCVC, Emerson Collective, SV Angel, Verdict Capital, Streamlined Ventures and Y Combinator are also listed. A seed round is an early round of outside funding for a young company. The proceeds will also support BioStack's expansion in the United States and international markets, further development of its technology platform, and growth of its engineering and research teams.
Pushpak Kedia, Vice President at Peak XV, said, "We believe BioStack has the potential to become an important data layer for the next generation of medical AI."
Snorkel AI $350 million comparison: how BioStack's seed round sizes up
The arithmetic is $350 million divided by $9.5 million, which equals 36.8, or about 37 times. Flipped, BioStack's $9.5 million is about 2.7 percent of Snorkel AI's $350 million. Voice of Healthcare also names Amigo AI, which raised $11 million to develop training capabilities for clinical agents. The article gives no dates for the Snorkel AI or Amigo AI raises, so the comparison measures size only, not timing.
For readers following AI data infrastructure funding, the gap is a plain measure of scale. BioStack's round is a seed round for a company founded in October 2025 with 10 employees. Voice of Healthcare lists Snorkel AI among companies attracting capital in adjacent areas. The comparison describes two amounts. It does not predict how either company will perform. Readers can check the $9.5 million figure in both articles, which agree on it.
BioStack team: Sanat Mishra, Parth Patwa and the Y Combinator batch
Voice of Healthcare reports that BioStack was founded in October 2025 and has a team of 10 employees. The company is led by Sanat Mishra, a former cancer genomics researcher, alongside Parth Patwa, its chief technology officer and a former generative AI scientist at AWS. BioStack participated in Y Combinator's Spring 2026 batch.
Digital Health News carries a statement from Sanat Mishra, co-founder and CEO of BioStack: "We're building the infrastructure that connects all of the clinical information and makes it useful, both for clinicians making decisions today and for the researchers and AI developers building the future of medicine."
What clinical data infrastructure for medical AI training means
Clinical data infrastructure is the layer of software and data systems that organizes patient records, lab results and clinical notes so that AI developers can use them. Voice of Healthcare reports that the founders wrote in the company's Y Combinator launch post that real patient records are incomplete, labs are late and notes conflict.
People Also Ask
How much did BioStack raise in its seed round?
BioStack raised $9.5 million in seed funding led by Peak XV and other investors, according to Digital Health News. Voice of Healthcare describes BioStack as a San Francisco-based healthcare AI startup.
How does Snorkel AI's raise compare with BioStack's seed round?
Snorkel AI's $350 million raise for AI data infrastructure is about 37 times BioStack's $9.5 million seed round. BioStack's round is about 1/37 of that raise, based on dividing $350 million by $9.5 million.
What does BioStack build for medical AI?
BioStack builds clinical data infrastructure and AI training environments for medical AI. BioStack's infrastructure helps AI laboratories train and evaluate medical AI models using structured clinical and preclinical records.
Who leads BioStack?
Sanat Mishra, a former cancer genomics researcher, leads BioStack as co-founder and CEO. Parth Patwa is BioStack's chief technology officer and a former generative AI scientist at AWS.
Sources: Voice of Healthcare, Digital Health News.