Fundraising Fox

Pumpkinseed

Palo Alto, US · 6 known investors

pumpkinseed.bio

Pumpkinseed builds deSIPHR, a nanophotonic chip platform that reads proteins directly at single-molecule resolution using Raman spectroscopy, without relying on a reference database. Its de novo protein sequencing technology serves biopharma, biosecurity, and biological AI applications.

AI & Machine LearningBiotechDeep Tech

Founders & leadership

JD
Jen DionneCo-Founder
JHJack Hu
Jack HuinCo-Founder & CSO
NV
Nhat VuCo-Founder & CTO

Investors · 6

Also in the syndicate · 3

ADVenturesBase4Stanford

Funding

SEC filings, press & company announcements

$20M disclosed across 1 round · 2026

Source: company announcements and press reports — follow each round's link for the claim.

Competitors · 2

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In the news

Frequently asked questions

What does Pumpkinseed do?
Pumpkinseed builds deSIPHR, a nanophotonic chip platform that reads proteins directly at single-molecule resolution using Raman spectroscopy, without relying on a reference database. Its de novo protein sequencing technology serves biopharma, biosecurity, and biological AI applications.
Who founded Pumpkinseed?
Pumpkinseed was founded by Jen Dionne, Jack Hu, Nhat Vu.
Who are Pumpkinseed's investors?
Pumpkinseed's investors include Future Ventures, NFX, Stanford University.
How much funding has Pumpkinseed raised?
Pumpkinseed has disclosed $20M raised across 1 round.
Where is Pumpkinseed headquartered?
Pumpkinseed is headquartered in Palo Alto, US.