Funded Biotech startups in Washington
9 biotech startups in Washington have filed a Form D with the SEC and together report $66.8M raised. Bonum Therapeutics has the largest latest round, at $26.9M. Amounts are as reported on the filing, not estimates.
Updated Jul 21, 2026
- Companies
- 9
- Total raised
- $66.8M
- Filings
- 9
- Median round
- $1.5M
- Cities
- 3
CompanyCityLast filingLatest round
Accipiter BiosciencesComputationally designed proteins that hit several targets
Seattle
Jul 21, 2026
$10.5M
PluristyxStem cell lines and manufacturing for cell therapy makers
Seattle
Jul 1, 2026
$9.8M
Mitera BiosciencesPlacental protein therapy for transplant rejection
Bellevue
Apr 21, 2026
$1.1M
Bonum TherapeuticsCytokine therapies that switch on only at their target
Seattle
Apr 3, 2026
$26.9M
Watershed MedicalSustained-release bladder drug delivery for bladder cancer
Bellevue
Mar 31, 2026
$300K
Primary BioscienceNanopore protein sequencing for multi-cancer screening
Seattle
Oct 2, 2025
$1.3M
Cyrus BiotechnologyComputational protein design for drug discovery
Seattle
Jul 1, 2025
$1.5M
Anavatos BioAutomated small-batch protein manufacturing
Seattle
Apr 27, 2025
$393K
Aminex TherapeuticsPolyamine-depleting oral therapy for solid tumors
Kenmore
Oct 25, 2022
$15.1M
All 9 companies · most recent filing first
Most recent filings
9All 9 companies · most recent filing first