Top list · Seattle

Biotech startups in Seattle

81 biotech startups in Seattle have raised money in rounds we track. These are the 50 that have raised the most, $3.2B between them.

$3.2Braised by these 50
81on our record in all
Shape Therapeuticsraised the most
  1. 1Shape TherapeuticsA biotechnology company developing RNA technologies to shape the future of gene therapy

    A biotechnology company developing RNA technologies to shape the future of gene therapy

    Founded 2018Seattle, United States$260Mlast round Jul 2026
  2. 2Alpine Immune SciencesAlpine Immune Sciences is an immunotherapy company focused on developing treatments for autoimmune and inflammatory diseases.

    Alpine Immune Sciences is an immunotherapy company focused on developing treatments for autoimmune and inflammatory diseases.

    Founded 2015Seattle, United States$199Mlast round Nov 2023
  3. 3Callio TherapeuticsCallio Therapeutics is a biotechnology company founded in 2025, focused on developing next-generation dual-payload antibody-drug conjugates (ADCs) to enhance ca

    Callio Therapeutics is a biotechnology company founded in 2025, focused on developing next-generation dual-payload antibody-drug conjugates (ADCs) to enhance ca

    Founded 2025Seattle, United States$187Mlast round Mar 2025
  4. 4Tune TherapeuticsTune Therapeutics is a biotechnology company based in Durham, North Carolina, founded in 2020.

    Tune Therapeutics is a biotechnology company based in Durham, North Carolina, founded in 2020.

    Founded 2020Seattle, United States$175Mlast round Jan 2025
  5. 5Outpace BioOutpace Bio is a clinical-stage biotechnology company based in Seattle, Washington.

    Outpace Bio is a clinical-stage biotechnology company based in Seattle, Washington.

    Founded 2020Seattle, United States$144Mlast round Aug 2024
  6. 6Nohla TherapeuticsNohla Therapeutics is a biotechnology company based in Seattle, founded in 2015.

    Nohla Therapeutics is a biotechnology company based in Seattle, founded in 2015.

    Founded 2015Seattle, United States$131Mlast round Jul 2018
  7. 7Bonum TherapeuticsBonum Therapeutics creates a technology platform to treat a wide range of diseases.

    Bonum Therapeutics creates a technology platform to treat a wide range of diseases.

    Founded 2021Seattle, United States$120Mlast round Apr 2026
  8. 8IcosavaxIcosavax is focused on developing safe and effective vaccines against infectious diseases that address important unmet medical needs.

    Icosavax is focused on developing safe and effective vaccines against infectious diseases that address important unmet medical needs.

    Founded 2017Seattle, United States$119Mlast round May 2023
  9. 9BrainChild BioBrainChild Bio develops CAR-T cell therapies for pediatric brain tumors, focusing on DIPG.

    BrainChild Bio develops CAR-T cell therapies for pediatric brain tumors, focusing on DIPG.

    Founded 2023Seattle, United States$116Mlast round Sept 2026
  10. 10ProfoundBioProfoundBio is a developer of targeted therapeutics intended for patients with cancer.

    ProfoundBio is a developer of targeted therapeutics intended for patients with cancer.

    Founded -Seattle, United States$112Mlast round Feb 2024
  11. 11TassoTasso is a Medical innovation company changing the way diagnostics are delivered

    Tasso is a Medical innovation company changing the way diagnostics are delivered

    Founded 2011Seattle, United States$109Mlast round Dec 2021
  12. 12Variant BioVariant Bio is a biotechnology company based in Seattle, founded in 2018.

    Variant Bio is a biotechnology company based in Seattle, founded in 2018.

    Founded 2018Seattle, United States$105Mlast round Nov 2021
  13. 1398point698point6 is a software digital care service company that provides consultation, diagnosis, and treatment to patients.

    98point6 is a software digital care service company that provides consultation, diagnosis, and treatment to patients.

    Founded 2015Seattle, United States$102Mlast round Apr 2023
  14. 14PandionPandion was a technology-driven logistics startup founded in 2020, focused on providing an end-to-end shipping network for e-commerce retailers.

    Pandion was a technology-driven logistics startup founded in 2020, focused on providing an end-to-end shipping network for e-commerce retailers.

    Founded -Seattle, United States$100Mlast round Mar 2024
  15. 15Calistoga PharmaceuticalsCalistoga Pharmaceuticals develops therapeutic oral medicines for patients suffering from cancer and inflammatory diseases.

    Calistoga Pharmaceuticals develops therapeutic oral medicines for patients suffering from cancer and inflammatory diseases.

    Founded 2006Seattle, United States$97Mlast round Jun 2010
  16. 16Cajal NeuroscienceCajal Neuroscience is a drug discovery company focused on neurodegenerative disease.

    Cajal Neuroscience is a drug discovery company focused on neurodegenerative disease.

    Founded 2020Seattle, United States$96Mlast round Nov 2022
  17. 17Faraday PharmaceuticalsFaraday Pharmaceuticals is an early-stage therapeutics company focused on developing novel therapies to treat ischemia-reperfusion injury.

    Faraday Pharmaceuticals is an early-stage therapeutics company focused on developing novel therapies to treat ischemia-reperfusion injury.

    Founded 2014Seattle, United States$78Mlast round Nov 2022
  18. 18Sana BiotechnologySana Biotechnology is a developer of engineered cells intended to be used as medicine for patients.

    Sana Biotechnology is a developer of engineered cells intended to be used as medicine for patients.

    Founded 2018Seattle, United States$69Mlast round May 2026
  19. 19Magnolia Medical TechnologiesMagnolia Medical Technologies is a Seattle-based healthcare company focused on improving diagnostic accuracy for sepsis detection through innovative blood and b

    Magnolia Medical Technologies is a Seattle-based healthcare company focused on improving diagnostic accuracy for sepsis detection through innovative blood and b

    Founded 2006Seattle, United States$69Mlast round Feb 2022
  20. 20ArzedaWe harness the power of Intelligent Protein Design TechnologyTM to create enzyme products solving industry's toughest challenges

    We harness the power of Intelligent Protein Design TechnologyTM to create enzyme products solving industry's toughest challenges

    Founded 2009Seattle, United States$65Mlast round Sept 2024
  21. 21AltPepAltPep is a Seattle-based biotechnology company founded in 2018 that focuses on developing early disease-modifying treatments and detection tools for amyloid di

    AltPep is a Seattle-based biotechnology company founded in 2018 that focuses on developing early disease-modifying treatments and detection tools for amyloid di

    Founded 2019Seattle, United States$53Mlast round Jun 2023
  22. 22Parse BiosciencesParse Biosciences is a biotechnology startup company that develops single-cell sequencing kit solutions for researchers.

    Parse Biosciences is a biotechnology startup company that develops single-cell sequencing kit solutions for researchers.

    Founded 2018Seattle, United States$50Mlast round Dec 2023
  23. 23RareCyteRareCyte is a life science research and diagnostic development company focused on characterizing and isolating rare cells in the blood.

    RareCyte is a life science research and diagnostic development company focused on characterizing and isolating rare cells in the blood.

    Founded 2009Seattle, United States$50Mlast round Jun 2024
  24. 24Bardy DiagnosticsBardy Diagnostics is a developer of a cardiac monitor and arrhythmia detection device .

    Bardy Diagnostics is a developer of a cardiac monitor and arrhythmia detection device .

    Founded 2013Seattle, United States$46Mlast round May 2025
  25. 25Vedana TherapeuticsVedana Therapeutics is a Seattle biotechnology company developing next-generation antibody therapies for migraine prevention.

    Vedana Therapeutics is a Seattle biotechnology company developing next-generation antibody therapies for migraine prevention.

    Founded -Seattle, United States$46Mlast round Jun 2026
  26. 26OncoResponseOncoResponse is an immuno-oncology biotech company developing cancer immunotherapies leveraging human immune system responses.

    OncoResponse is an immuno-oncology biotech company developing cancer immunotherapies leveraging human immune system responses.

    Founded 2016Seattle, United States$44Mlast round May 2023
  27. 27Receptor Life SciencesReceptor Life Sciences is a Washington-based pharmaceutical company that develops drug-infused therapies for the treatment of central nervous system disorders.

    Receptor Life Sciences is a Washington-based pharmaceutical company that develops drug-infused therapies for the treatment of central nervous system disorders.

    Founded 2017Seattle, United States$39Mlast round Apr 2022
  28. 28Targeted GrowthTargeted Growth, Inc.

    Targeted Growth, Inc.

    Founded 1998Seattle, United States$37Mlast round Jul 2012
  29. 29AllozyneAllozyne develops technologies that improve the efficacy, safety, dosing, and other characteristics of protein-based therapeutics.

    Allozyne develops technologies that improve the efficacy, safety, dosing, and other characteristics of protein-based therapeutics.

    Founded 2005Seattle, United States$37Mlast round Apr 2013
  30. 30Stratos GenomicsStratos Genomics is a biotechnology company based in Seattle, founded in 2007.

    Stratos Genomics is a biotechnology company based in Seattle, founded in 2007.

    Founded 2007Seattle, United States$36Mlast round Jun 2015
  31. 31InipharmInipharm is a biopharmaceutical company that researches and develops novel therapies for the treatment of severe liver diseases.

    Inipharm is a biopharmaceutical company that researches and develops novel therapies for the treatment of severe liver diseases.

    Founded 2018Seattle, United States$35Mlast round Nov 2020
  32. 32ImmusoftImmusoft is a biotechnology company that develops novel cell therapies for therapeutic protein delivery for rare diseases.

    Immusoft is a biotechnology company that develops novel cell therapies for therapeutic protein delivery for rare diseases.

    Founded 2009Seattle, United States$29Mlast round Jan 2018
  33. 33Blaze BioscienceBlaze Bioscience develops and commercializes products that assist surgeons to treat cancer patients.

    Blaze Bioscience develops and commercializes products that assist surgeons to treat cancer patients.

    Founded 2010Seattle, United States$23Mlast round Dec 2013
  34. 34Accipiter BiosciencesAccipiter Biosciences is a biotechnology company.

    Accipiter Biosciences is a biotechnology company.

    Founded 2023Seattle, United States$23Mlast round Jul 2026
  35. 35XealthXealth is a digital health platform that enables healthcare organizations to prescribe and monitor health tools, programs, and services.

    Xealth is a digital health platform that enables healthcare organizations to prescribe and monitor health tools, programs, and services.

    Founded 2016Seattle, United States$23Mlast round Mar 2025
  36. 36VilyaVilya is a biotechnology company developing a novel class of drugs that precisely target the biology of disease.

    Vilya is a biotechnology company developing a novel class of drugs that precisely target the biology of disease.

    Founded 2022Seattle, United States$21Mlast round Jun 2024
  37. 37Archon BiosciencesArchon Biosciences is a Seattle-based biotechnology company focused on developing innovative protein therapeutics known as Antibody Cages (AbCs).

    Archon Biosciences is a Seattle-based biotechnology company focused on developing innovative protein therapeutics known as Antibody Cages (AbCs).

    Founded -Seattle, United States$20Mlast round Oct 2024
  38. 38Visus TherapeuticsVisus Therapeutics is a clinical-stage company developing innovative medicines.

    Visus Therapeutics is a clinical-stage company developing innovative medicines.

    Founded 2019Seattle, United States$20Mlast round Aug 2021
  39. 39Presage BiosciencesPresage Biosciences develops a technology platform to improve the cancer drug development process.

    Presage Biosciences develops a technology platform to improve the cancer drug development process.

    Founded 2008Seattle, United States$20Mlast round Jul 2018
  40. 40Bulletproof 360Bulletproof offers products to help people to reach a state of high performance and achieve their full protential, mentally and physically.

    Bulletproof offers products to help people to reach a state of high performance and achieve their full protential, mentally and physically.

    Founded 2014Seattle, United States$19Mlast round May 2017
  41. 41JoyluxJoylux is a health and wellness company that specializes in women's health and wellness.

    Joylux is a health and wellness company that specializes in women's health and wellness.

    Founded 2013Seattle, United States$18Mlast round Dec 2024
  42. 42A-Alpha BioA-Alpha Bio uses synthetic biology and machine learning to measure, discover, predict, and engineer protein-protein interactions.

    A-Alpha Bio uses synthetic biology and machine learning to measure, discover, predict, and engineer protein-protein interactions.

    Founded 2017Seattle, United States$17Mlast round May 2024
  43. 43KinetaKineta aims at developing edge therapeutics in autoimmune disease, viral disease, and chronic pain areas.

    Kineta aims at developing edge therapeutics in autoimmune disease, viral disease, and chronic pain areas.

    Founded 2008Seattle, United States$13Mlast round Aug 2019
  44. 44ActXActX is a dynamic venture that focuses on making patient genomic information truly useful in everyday medical practice.

    ActX is a dynamic venture that focuses on making patient genomic information truly useful in everyday medical practice.

    Founded 2012Seattle, United States$11Mlast round Dec 2022
  45. 45Cyrus BiotechnologyCyrus Biotechnology is a Seattle-based biotechnology company founded in 2014, focusing on AI-driven protein design and screening to develop novel biologics for

    Cyrus Biotechnology is a Seattle-based biotechnology company founded in 2014, focusing on AI-driven protein design and screening to develop novel biologics for

    Founded 2014Seattle, United States$10Mlast round May 2026
  46. 46TwinStrand BiosciencesTwinStrand Biosciences is a Seattle-based biotechnology company founded in 2015, focusing on Duplex SequencingTM, a highly accurate genomic technology.

    TwinStrand Biosciences is a Seattle-based biotechnology company founded in 2015, focusing on Duplex SequencingTM, a highly accurate genomic technology.

    Founded 2015Seattle, United States$10Mlast round Jun 2023
  47. 47HealionicsHealionics has developed a novel vascular graft, based on a platform biomaterial, offering improved vascular access for dialysis patients.

    Healionics has developed a novel vascular graft, based on a platform biomaterial, offering improved vascular access for dialysis patients.

    Founded 2007Seattle, United States$10Mlast round Dec 2025
  48. 48SEngine Precision MedicineSEngine Precision Medicine uses algorithms and 3D organoid technology to develop drugs with more efficacy.

    SEngine Precision Medicine uses algorithms and 3D organoid technology to develop drugs with more efficacy.

    Founded 2015Seattle, United States$10Mlast round Jul 2022
  49. 49Synthesize BioSynthesize Bio is a biotechnology company based in Seattle, founded in 2023.

    Synthesize Bio is a biotechnology company based in Seattle, founded in 2023.

    Founded 2023Seattle, United States$10Mlast round Sept 2025
  50. 50Groove BiopharmaGroove Biopharma focuses on the novel microRNA therapeutics with improved properties, including higher potency and enhanced pharmacodynamic activity

    Groove Biopharma focuses on the novel microRNA therapeutics with improved properties, including higher potency and enhanced pharmacodynamic activity

    Founded 2008Seattle, United States$9.9Mlast round Dec 2011
Total fundinghow the list is ranked
15 November 2026updated nightly
Rounds we tracksource: Millionrounds

Companies whose funding rounds we classed in this sector, ranked by the total they have raised in rounds we hold. Nobody pays to be on a list.

Who backed them?

Open any company for its rounds and investors, or search the investors who back biotech startups in Seattle in the app, with filters, lists and exports.

Find their investorsAll top lists

More biotech lists

See all
ILNHCSBiotech startups in Europe1,665 companies · $22BGVILRMBiotech startups that raised in 2026896 companies · $37B in 2026ILCSONBiotech startups in the United Kingdom588 companies · $15BGVRMMBiotech startups in the United States that raised in 2026498 companies · $32B in 2026NHDTEBiotech startups founded in 2018368 companies · $14BNRLLSTBiotech startups founded in 2020337 companies · $7.0BEETNABiotech startups founded in 2019336 companies · $11BILRBVSBiotech startups founded in 2021275 companies · $12B

More lists for Seattle

See all
SSRCStartups in Seattle656 companies · $10BSOHAI startups in Seattle150 companies · $3.1BLHESSTHealth startups in Seattle132 companies · $5.1BHNISIT Services startups in Seattle66 companies · $762MSTAITTHealthcare startups in Seattle43 companies · $2.1BSMZSSoftware startups in Seattle34 companies · $602MTQRBig Data & Analytics startups in Seattle31 companies · $1.6BRFZInternet startups in Seattle24 companies · $804M