# Who Invests With Arch: 30 Co-Investors (2026) > The 30 investors that have backed two or more of the same startups as Arch, by kind: vc firms, private equity and asset managers and corporate investors. Source: https://millionrounds.com/portfolio-maps/arch-co-investors (Millionrounds; every figure on the page links to its filing or article) ## VC firms 18 - [ARCH Venture Partners](https://millionrounds.com/fund/arch-venture-partners) - [Alexandria Real Estate Equities](https://millionrounds.com/fund/alexandria) - [Fidelity](https://millionrounds.com/fund/fidelity) - [Biomatics Capital](https://millionrounds.com/fund/biomatics-capital) - [Polaris Partners](https://millionrounds.com/fund/polaris-partners) - [6 Dimensions Capital](https://millionrounds.com/fund/6-dimensions-capital) - [Flagship Pioneering](https://millionrounds.com/fund/flagship-pioneering) - [Redmile Group](https://millionrounds.com/fund/redmile-group) - [Lilly Asia Ventures](https://millionrounds.com/fund/lilly-asia-ventures) - [F-Prime Capital](https://millionrounds.com/fund/f-prime) - [Sequoia Capital](https://millionrounds.com/fund/sequoia-capital) - [Syngenta Ventures](https://millionrounds.com/fund/syngenta-group-ventures) - [Samsara BioCapital](https://millionrounds.com/fund/samsara-biocapital) - [Omega Funds](https://millionrounds.com/fund/omega-funds) - [Cormorant Capital](https://millionrounds.com/fund/cormorant-capital) - [Casdin Capital](https://millionrounds.com/fund/casdin-capital) - [Altitude Life Science Ventures](https://millionrounds.com/fund/altitude-life-science-ventures) - [Venrock](https://millionrounds.com/fund/venrock) ## Private equity and asset managers 9 - [Cormorant Asset Management](https://millionrounds.com/fund/cormorant-asset-management) - [Gates Foundation](https://millionrounds.com/fund/bill-and-melinda-gates-foundation) - [Invus](https://millionrounds.com/fund/invus) - [Boyu Capital](https://millionrounds.com/fund/boyu-capital) - [EcoR1 Capital](https://millionrounds.com/fund/ecor1-capital) - [YunFeng Capital](https://millionrounds.com/fund/yunfeng-capital) - [Baillie Gifford](https://millionrounds.com/fund/baillie-gifford) - [Blue Pool Capital](https://millionrounds.com/fund/blue-pool-capital) - [Foresite Capital](https://millionrounds.com/fund/forsite-capital) ## Corporate investors 3 - [Eli Lilly](https://millionrounds.com/fund/eli-lilly) - [Google Ventures](https://millionrounds.com/fund/gv) - [AbbVie](https://millionrounds.com/fund/abbvie) ## Segment by segment ### VC firms 18 investors - [**ARCH Venture Partners**](https://millionrounds.com/fund/arch-venture-partners) VC firm United States 14 backed - [**Alexandria Real Estate Equities**](https://millionrounds.com/fund/alexandria) VC firm United States 6 backed - [**Fidelity**](https://millionrounds.com/fund/fidelity) VC firm United States 5 backed - [**Biomatics Capital**](https://millionrounds.com/fund/biomatics-capital) VC firm United States 4 backed - [**Polaris Partners**](https://millionrounds.com/fund/polaris-partners) VC firm United States 4 backed - [**6 Dimensions Capital**](https://millionrounds.com/fund/6-dimensions-capital) VC firm China 3 backed - [**Flagship Pioneering**](https://millionrounds.com/fund/flagship-pioneering) VC firm United States 3 backed - [**Redmile Group**](https://millionrounds.com/fund/redmile-group) VC firm United States 3 backed ### Private equity and asset managers 9 investors - [**Cormorant Asset Management**](https://millionrounds.com/fund/cormorant-asset-management) Private equity United States 4 backed - [**Gates Foundation**](https://millionrounds.com/fund/bill-and-melinda-gates-foundation) Investor United States 3 backed - [**Invus**](https://millionrounds.com/fund/invus) Private equity United States 3 backed - [**Boyu Capital**](https://millionrounds.com/fund/boyu-capital) Private equity Hong Kong SAR China 3 backed - [**EcoR1 Capital**](https://millionrounds.com/fund/ecor1-capital) Private equity United States 3 backed - [**YunFeng Capital**](https://millionrounds.com/fund/yunfeng-capital) Private equity - 2 backed - [**Baillie Gifford**](https://millionrounds.com/fund/baillie-gifford) Asset manager United Kingdom 2 backed - [**Blue Pool Capital**](https://millionrounds.com/fund/blue-pool-capital) Private equity Hong Kong SAR China 2 backed ### Corporate investors 3 investors - [**Eli Lilly**](https://millionrounds.com/fund/eli-lilly) Corporate investor United States 3 backed - [**Google Ventures**](https://millionrounds.com/fund/gv) Corporate investor United States 3 backed - [**AbbVie**](https://millionrounds.com/fund/abbvie) Corporate investor United States 2 backed **How this map is made.** Every investor here has backed two or more of the same startups as Arch, in rounds we track. Grouped by kind, each ranked by how many startups it shares with Arch. Rebuilt nightly; updated 15 November 2026. ## More portfolio maps [All portfolios](https://millionrounds.com/portfolio-maps) [Sector portfolio **Arch's Biotech portfolio** 18 startups ยท $3.5B](https://millionrounds.com/portfolio-maps/arch-biotech-portfolio)[Co-investors **Who invests with Y Combinator** 1,812 co-investors](https://millionrounds.com/portfolio-maps/y-combinator-co-investors)[Co-investors **Who invests with 500 Global** 996 co-investors](https://millionrounds.com/portfolio-maps/500-startups-co-investors)[Co-investors **Who invests with Techstars** 991 co-investors](https://millionrounds.com/portfolio-maps/techstars-co-investors)[Co-investors **Who invests with SV Angel** 988 co-investors](https://millionrounds.com/portfolio-maps/sv-angel-co-investors)[Co-investors **Who invests with Andreessen Horowitz** 977 co-investors](https://millionrounds.com/portfolio-maps/andreessen-horowitz-co-investors) ## Raising from investors like Arch? 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