OpenEvidence: Funding, Investors & Team (Sep 2026)
Open Evidence offers precise medical information to healthcare professionals, improving decision-making at the point of care. The company functions as a research and consulting agency, conducting studies that back public policy and corporate strategies through qualitative and quantitative approaches. Healthcare providers utilize OpenEvidence frequently throughout the day for clinical decision support during office hours. They depend on it to shape patient care plans by examining treatment impacts on patients with particular comorbidities and assessing drug effectiveness. The platform also addresses common worries by offering perspectives on drug safety profiles, disease origins, and the dangers of ceasing medications.
OpenEvidence has raised $735M across 4 funding rounds on record, the most recent a Series D of $250M announced in Jan 2026.
That round is above the $5.7M median round size for Artificial Intelligence companies tracked on FundedIQ over the last two years.
OpenEvidence Company Profile and Key Stats
Latest funding round on record: Jan 2026.
OpenEvidence Funding Rounds
OpenEvidence raised $75.0M in a Series A announced in Feb 2025.
5 months later, a Series B of $210M was announced in Jul 2025.
3 months later, a Series C of $200M was announced in Oct 2025.
3 months later, a Series D of $250M was announced in Jan 2026.
OpenEvidence Founders and Leadership Team
No contact details are on record for this team yet.
OpenEvidence Funding Compared to Other Artificial Intelligence Startups
OpenEvidence's latest round of $250M is above the median round in Artificial Intelligence. Medians cover the last 24 months of disclosed rounds.
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OpenEvidence Funding FAQs
What does OpenEvidence do?
Open Evidence offers precise medical information to healthcare professionals, improving decision-making at the point of care. The company functions as a research and consulting agency, conducting studies that back public policy and corporate strategies through qualitative and quantitative approaches. Healthcare providers utilize OpenEvidence frequently throughout the day for clinical decision support during office hours. They depend on it to shape patient care plans by examining treatment impacts on patients with particular comorbidities and assessing drug effectiveness. The platform also addresses common worries by offering perspectives on drug safety profiles, disease origins, and the dangers of ceasing medications.
How much funding has OpenEvidence raised?
OpenEvidence has raised $735M across 4 rounds on record. The most recent is a Series D of $250M announced in Jan 2026.
When did OpenEvidence last raise funding?
OpenEvidence's most recent funding round on record is a Series D of $250M, announced in Jan 2026.
Who founded OpenEvidence?
FundedIQ lists Daniel Nadler (Founder), Zachary Ziegler (Founder) at OpenEvidence.
Where is OpenEvidence headquartered?
OpenEvidence is based in Cambridge, Massachusetts, United States.
How many employees does OpenEvidence have?
OpenEvidence is in the 11-50 employee band.
How does OpenEvidence's funding compare to other Artificial Intelligence startups?
OpenEvidence's latest round of $250M is above the $5.7M median round size for Artificial Intelligence companies on FundedIQ across 7,234 tracked companies over the last two years.
About FundedIQ's OpenEvidence Funding Data
FundedIQ tracks announced funding rounds and refreshes this profile every week. Round dates, stages and amounts are normalised to a single format, converted to US dollars, and de-duplicated: two records of the same round announced days apart are merged, and two genuinely different rounds are kept apart on the amounts they disclose. Amounts shown are the disclosed figures only — a round announced without a number is listed and excluded from the total rather than estimated.
Employee counts are reported bands, not exact headcounts. Founder and executive names carry the job title on record. Anything we do not hold for OpenEvidence is left off this page rather than filled in.
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