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Venture capital database
Company formation · Seed · Early stage
ARCH Venture Partners
Chicago, Illinois, US
ARCH Venture Partners focuses on Life sciences, Information technology, Physical sciences across company formation through seed through early stage. Team and company relationships are indexed from official firm pages.
Strategy lens
Declared focus vs. observed sample
Declared focus reflects the firm’s own strategy language. Observed sectors summarize only the source-linked companies currently indexed here; it is not the firm’s complete portfolio allocation.
AI-enabled drug discovery1
cardiovascular therapeutics1
machine-learning drug discovery1
neuropsychiatric medicines1
optogenetic vision restoration1
protein therapeutics / generative biology1
Founder fit screen
Prepare before contacting ARCH
Use the firm’s declared strategy and sourced relationship graph to build a specific outreach thesis. This is a preparation framework—not a claim about current appetite or check size.
Stage fit
Explain why the company belongs in Company formation, Seed, Early stage and what proof has already removed the prior stage’s risk.
Sector fit
Anchor the opportunity to Life sciences, Information technology, Physical sciences. Name the specific market shift and why it is happening now.
Partner fit
Review 2 indexed team profiles. Address the partner whose operating history and portfolio context best match the company.
Portfolio context
Study the 6 source-linked companies shown here. State whether the company is complementary, differentiated, or potentially competitive.
Evidence packet
Bring customer proof, cohort or deployment metrics, gross-margin logic, capital use, key risks, and the milestone this financing should unlock.
Contact route
Use the firm’s public route and keep the request precise: company, stage, round, traction, why this firm, and one clear next step.
Key people
Official team source Who shapes the partnership
Co-founder & Managing Director
Robert Nelsen
Co-founder & Managing Director at ARCH Venture Partners, working in a firm focused on Life sciences, Information technology, Physical sciences.
Co-founder & Managing Director
Keith Crandell
Co-founder & Managing Director at ARCH Venture Partners, working in a firm focused on Life sciences, Information technology, Physical sciences. Selected relationships
Official portfolio source Investments listed by the firm
protein therapeutics / generative biology
Official sourceGenerate:Biomedicines
Open the company graph to see founders and every indexed investor relationship.
machine-learning drug discovery
Official sourceinsitro
Open the company graph to see founders and every indexed investor relationship.
cardiovascular therapeutics
Official sourceKardigan
Open the company graph to see founders and every indexed investor relationship.
optogenetic vision restoration
Official sourceRhyGaze
Open the company graph to see founders and every indexed investor relationship.
neuropsychiatric medicines
Official sourceSeaport Therapeutics
Open the company graph to see founders and every indexed investor relationship.
AI-enabled drug discovery
Official sourceXaira Therapeutics
Open the company graph to see founders and every indexed investor relationship.
Co-investment map
Firms sharing listed companies
Ranked by shared companies in this indexed dataset—not necessarily the same financing round.
Help complete the graphClaim or improve
Claim or improve
ARCH Venture Partners.
Founders, firm teams, investors, and careful researchers can submit a missing fact or correction. Every change enters a review queue and requires public evidence.
- No unsourced edits
- Identity and scope reviewed
- Existing claims retain history
Source discipline
This dossier uses publicly available firm pages for team, strategy, and portfolio context. It does not infer check size, ownership, valuation, current holding status, or availability for introductions.