Sector portfolio · VC firm · United States

Samsara BioCapital's Biotech portfolio

Samsara BioCapital has backed 62 Biotech startups in rounds we track, $11B between them, shown by the stage each has reached. The best-funded is Candid Therapeutics.

62startups backed
4stages
$11Braised between them
Series Bbiggest stage

Samsara BioCapital's profile

Series B

23

Stage not reported

20

Series A

10

Series C and later

9

Segment by segment

Series B

23 startups · $3.8B raised

  1. Gossamer BioGossamer Bio is a biopharmaceutical company focused on the discovery and development of novel and differentiated therapeutic products.United States$567M
  2. SpringWorks TherapeuticsSpringWorks Therapeutics is a biopharmaceutical company that develops medicines for patients with severe rare diseases and cancer.United States$400M
  3. Fulcrum TherapeuticsFulcrum Therapeutics is a biotechnology company that focuses on identifying and treating rare genetic diseases at their root cause.United States$310M
  4. ArcellxArcellx is a clinical-stage biotechnology company focused on developing innovative immunotherapies for cancer and other incurable diseases.United States$285M
  5. T-TherapeuticsT-Therapeutics is a next-generation T cell receptor (TCR) company spun off from the University of Cambridge.United Kingdom$279M
  6. SurrozenSurrozen is a biopharmaceutical that focuses on unlocking the body’s regenerative power to treat injury and disease.United States$258M
  7. Upstream BioUpstream Bio focuses on developing an antibody therapy for the treatment of severe asthma.United States$200M
  8. BBBolt BiotherapeuticsBolt Biotherapeutics is a biotechnology company that develops a platform for cancer immunotherapy.United States$189M

Stage not reported

20 startups · $3.9B raised

  1. Candid TherapeuticsCandid Therapeutics was a clinical-stage biotechnology company based in San Diego, California, founded in 2024.United States$875M
  2. AbivaxAbivax develops medicines that alter the body's natural immune system mechanisms.France$793M
  3. Janux TherapeuticsJanux Therapeutics develops immunotherapies that generates immune responses to prevent tumors and not affecting a patient’s healthy tissue.United States$350M
  4. AlumisAlumis is a precision medicine company focused on the discovery, development and treatment of autoimmune disorders.United States$345M
  5. Centessa PharmaceuticalsCentessa Pharmaceuticals is a pharmaceutical company that focuses on drug development to address significant medical needs.United States$250M
  6. Nkarta TherapeuticsNkarta Therapeutics is a developer of cell engineering platform created to build the next generation of cell therapies.United States$240M
  7. Palvella TherapeuticsPalvella Therapeutics is a clinical-stage biopharmaceutical company based in Wayne, Pennsylvania.United States$210M
  8. PepgenPepGen is empowering nucleic acid therapeutics to go the distance.United Kingdom$115M

Series A

10 startups · $1.1B raised

  1. Alpine Immune SciencesAlpine Immune Sciences is an immunotherapy company focused on developing treatments for autoimmune and inflammatory diseases.United States$199M
  2. NeurogeneNeurogene is a developer of genetic medicines intended to improve patient outcomes for neurological disorders.United States$194M
  3. Jasper TherapeuticsJasper Therapeutics is a biotechnology company that develops novel antibody therapies for stem cell transplants.United States$167M
  4. Ottimo PharmaOttimo Pharma is a private, clinical-stage biotechnology company based in Sandwich, Kent, United Kingdom.United Kingdom$140M
  5. MMMemento MedicinesMemento Medicines is a biotech developing bispecific antibody therapies for eye diseases.United Kingdom$93M
  6. Ablaze PharmaceuticalsAblaze Pharmaceuticals is a clinical-stage biopharmaceutical company based in Shanghai, China, with an office in San Diego, California.China$75M
  7. ExcellergyExcellergy develops immunology-based therapies focused on treating allergic diseases through novel biologic drug candidates.United States$70M
  8. EEyebiotechEyebiotech is an ophthalmology biotechnology company that specializes in therapies for eye diseases.United States$65M

Series C and later

9 startups · $2.2B raised

  1. ElevateBioElevateBio is a biotechnology company based in Waltham, Massachusetts, founded in 2017.United States$551M
  2. EeGenesisUnited States$329M
  3. AAtrecaAtreca develops a technology to identify the set of antibodies produced during an immune response, without prior knowledge of an antigen.United States$313M
  4. Science 37Science 37 is a clinical research company that facilitates universal participation in clinical trials for patients and providers.United States$236M
  5. Obsidian TherapeuticsObsidian Therapeutics is a developer of a next-generation cell and gene therapies created to extend adoptive immunotherapy.United States$210M
  6. Dewpoint TherapeuticsDewpoint Therapeutics is a biotech company developing a drug platform that targets biomolecular condensates.United States$196M
  7. Rani TherapeuticsRani is a clinical-stage biotherapeutics company that enables the development of orally administered biologics to improve patient outcomes.United States$168M
  8. FORMA TherapeuticsFORMA Therapeutics is a biopharmaceutical company focused on the discovery, development, and commercialization of transformative medicines.United States$143M

How this map is made. Every startup here works in Biotech and has raised money in a round we track that names Samsara BioCapital as an investor. Each sits under the stage of its latest round. Rebuilt nightly; updated 15 November 2026.

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