Sector portfolio · VC firm · United States

ARCH Venture Partners' Pharma portfolio

ARCH Venture Partners has backed 15 Pharma startups in rounds we track, $6.5B between them, shown by the stage each has reached. The best-funded is Altos Labs.

15startups backed
4stages
$6.5Braised between them
Series Bbiggest stage

ARCH Venture Partners's whole portfolioARCH Venture Partners's profile

Series B

6

Stage not reported

4

Series C and later

3

Series A

2

Segment by segment

Series B

6 startups · $1.5B raised

  1. Ollin BiosciencesOllin Biosciences is a clinical-stage biopharmaceutical company based in Austin, Texas, founded in 2023.United States$430M
  2. KardiganKardigan is a heart health company developing drugs designed to make cardiovascular disease curable, preventable, and no longer thUnited States$254M
  3. Seaport TherapeuticsSeaport Therapeutics operates as a clinical stage biopharmaceutical company.United States$240M
  4. MetseraMetsera operates as a clinical-stage biopharmaceutical company.United States$215M
  5. Aera TherapeuticsAera Therapeutics is a biotechnology company based in Cambridge, Massachusetts, founded in 2021.United States$193M
  6. VentiRx PharmaceuticalsVentiRx develops and commercializes small molecule products for the treatment of cancer, respiratory and inflammatory diseases.United States$140M

Stage not reported

4 startups · $1.4B raised

  1. ResilienceResilience is a cyber risk company based in San Francisco, founded in 2016 by experts from military intelligence, insurance, and technology.United States$860M
  2. Maze TherapeuticsMaze Therapeutics is an operator of a biotechnology firm used to focus on translating genetic insights into new medicines.United States$300M
  3. Kura OncologyKura Oncology, a biopharmaceutical company, advances a pipeline of precision medicines for the treatment of solid tumors and blood cancers.United States$210M
  4. UltivueUltivue is a biotechnology company that specializes in tissue imaging, diagnostics, and multiplexing.United States$28M

Series C and later

3 startups · $639M raised

  1. Parabilis MedicinesParabilis Medicines is a Grupo Bugio is a biopharmaceutical firm that specializes in creating medicines.United States$380M
  2. Scholar RockScholar Rock is a biopharmaceutical company that develops and discovers new medicines and treatments for the serious diseases.United States$167M
  3. Be BiopharmaBe Biopharma, also known as Be Bio, is a clinical-stage biotechnology company based in Cambridge, Massachusetts.United States$92M

Series A

2 startups · $3.0B raised

  1. Altos LabsAltos Labs focuses on cellular rejuvenation programming to restore cell health and resilience, to reverse disease to transform medicine.United States$3.0B
  2. Protillion BiosciencesProtillion Biosciences is a biotechnology company based in Carlsbad, California, focused on discovering and optimizing therapeuticUnited States$18M

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

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