Pumpkinseed
Palo Alto, US · 6 known investors
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
Investors · 6
Future VenturesLos Altos · $1M – $10M
NFXSan Francisco · $250K – $5M
Stanford UniversityreportedStanford
Also in the syndicate · 3
ADVenturesBase4Stanford
Funding
SEC filings, press & company announcements$20M disclosed across 1 round · 2026
- $20MSeries AMay 2026 · 2 sources
Future Ventures (lead), NfX (lead), ADVentures, Base4, Stanford, Stanford University
Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
Competitors · 2
by search overlapSeed Tx5 shared keywordsSEED Therapeutics develops de novo molecular glue degraders for targeted protein degradation, using its RITE3 platform to match E3 ligases with disease-causing target proteins. Its lead RBM39 degrader (ST-01156) is in Phase 1 trials for Ewing sarcoma, hepatocellular carcinoma and related tumors, alongside additional oncology programs.
Seed Health4 shared keywordsSeed develops clinically studied probiotic and prebiotic formulations designed to support digestive health and overall wellness through proprietary delivery technology that protects beneficial bacteria through the digestive tract.
Companies competing with Pumpkinseed for the same Google search keywords, organic and paid, via search-intersection analysis.
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.

