# ARCH Venture Partners' Pharma Investments: 15 Startups in Its Portfolio (2026) > The 15 Pharma startups ARCH Venture Partners has backed, by stage: $6.5B raised between them. From the rounds we track; updated nightly. Source: https://millionrounds.com/portfolio-maps/arch-venture-partners-pharma-portfolio (Millionrounds; every figure on the page links to its filing or article) ## Series B 6 - [Ollin Biosciences](https://millionrounds.com/company/ollin-biosciences) - [Kardigan](https://millionrounds.com/company/kardigan) - [Seaport Therapeutics](https://millionrounds.com/company/seaport-therapeutics) - [Metsera](https://millionrounds.com/company/metsera) - [Aera Therapeutics](https://millionrounds.com/company/aera-therapeutics) - [VentiRx Pharmaceuticals](https://millionrounds.com/company/ventirx-pharmaceuticals) ## Stage not reported 4 - [Resilience](https://millionrounds.com/company/resilience) - [Maze Therapeutics](https://millionrounds.com/company/maze-therapeutics) - [Kura Oncology](https://millionrounds.com/company/kura-oncology) - [Ultivue](https://millionrounds.com/company/ultivue) ## Series C and later 3 - [Parabilis Medicines](https://millionrounds.com/company/parabilis-medicines) - [Scholar Rock](https://millionrounds.com/company/scholar-rock) - [Be Biopharma](https://millionrounds.com/company/be-biopharma) ## Series A 2 - [Altos Labs](https://millionrounds.com/company/altos-labs) - [Protillion Biosciences](https://millionrounds.com/company/protillion-biosciences) ## Segment by segment ### Series B 6 startups · $1.5B raised - [**Ollin Biosciences**](https://millionrounds.com/company/ollin-biosciences) Ollin Biosciences is a clinical-stage biopharmaceutical company based in Austin, Texas, founded in 2023. United States $430M - [**Kardigan**](https://millionrounds.com/company/kardigan) Kardigan is a heart health company developing drugs designed to make cardiovascular disease curable, preventable, and no longer th United States $254M - [**Seaport Therapeutics**](https://millionrounds.com/company/seaport-therapeutics) Seaport Therapeutics operates as a clinical stage biopharmaceutical company. United States $240M - [**Metsera**](https://millionrounds.com/company/metsera) Metsera operates as a clinical-stage biopharmaceutical company. United States $215M - [**Aera Therapeutics**](https://millionrounds.com/company/aera-therapeutics) Aera Therapeutics is a biotechnology company based in Cambridge, Massachusetts, founded in 2021. United States $193M - [**VentiRx Pharmaceuticals**](https://millionrounds.com/company/ventirx-pharmaceuticals) VentiRx 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 - [**Resilience**](https://millionrounds.com/company/resilience) Resilience is a cyber risk company based in San Francisco, founded in 2016 by experts from military intelligence, insurance, and technology. United States $860M - [**Maze Therapeutics**](https://millionrounds.com/company/maze-therapeutics) Maze Therapeutics is an operator of a biotechnology firm used to focus on translating genetic insights into new medicines. United States $300M - [**Kura Oncology**](https://millionrounds.com/company/kura-oncology) Kura Oncology, a biopharmaceutical company, advances a pipeline of precision medicines for the treatment of solid tumors and blood cancers. United States $210M - [**Ultivue**](https://millionrounds.com/company/ultivue) Ultivue is a biotechnology company that specializes in tissue imaging, diagnostics, and multiplexing. United States $28M ### Series C and later 3 startups · $639M raised - [**Parabilis Medicines**](https://millionrounds.com/company/parabilis-medicines) Parabilis Medicines is a Grupo Bugio is a biopharmaceutical firm that specializes in creating medicines. United States $380M - [**Scholar Rock**](https://millionrounds.com/company/scholar-rock) Scholar Rock is a biopharmaceutical company that develops and discovers new medicines and treatments for the serious diseases. United States $167M - [**Be Biopharma**](https://millionrounds.com/company/be-biopharma) Be 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 - [**Altos Labs**](https://millionrounds.com/company/altos-labs) Altos Labs focuses on cellular rejuvenation programming to restore cell health and resilience, to reverse disease to transform medicine. United States $3.0B - [**Protillion Biosciences**](https://millionrounds.com/company/protillion-biosciences) Protillion Biosciences is a biotechnology company based in Carlsbad, California, focused on discovering and optimizing therapeutic United 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. ## More portfolio maps [All portfolios](https://millionrounds.com/portfolio-maps) [Sector portfolio **ARCH Venture Partners' Biotech portfolio** 104 startups · $15B](https://millionrounds.com/portfolio-maps/arch-venture-partners-biotech-portfolio)[Portfolio map **ARCH Venture Partners portfolio map** 143 startups · $36B](https://millionrounds.com/portfolio-maps/arch-venture-partners-portfolio-map)[Co-investors **Who invests with ARCH Venture Partners** 132 co-investors](https://millionrounds.com/portfolio-maps/arch-venture-partners-co-investors)[Sector portfolio **Techstars' AI portfolio** 336 startups · $4.9B](https://millionrounds.com/portfolio-maps/techstars-ai-portfolio)[Sector portfolio **Alumni Ventures' AI portfolio** 302 startups · $36B](https://millionrounds.com/portfolio-maps/us-strategic-tech-fund-an-alumni-ventures-fund-ai-portfolio)[Sector portfolio **Andreessen Horowitz's AI portfolio** 259 startups · $426B](https://millionrounds.com/portfolio-maps/andreessen-horowitz-ai-portfolio) ## Raising from investors like ARCH Venture Partners? 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