About OpenEvidence
OpenEvidence is a company based in Cambridge (United States) founded in 2021 by Zachary Ziegler and Daniel Nadler. OpenEvidence has raised $735 million across 11 funding rounds from investors including Craft, Kleiner Perkins and Blackstone. OpenEvidence offers products and services including OpenEvidence App. OpenEvidence operates in a competitive market with competitors including iDoctus, Copient Health, QxMD, Nested Knowledge and Exonicus, among others.
- Headquarter Cambridge, United States
- Founders Zachary Ziegler, Daniel Nadler
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Sectors
Healthcare
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Email
Locked
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Phone
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Website
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Social
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Annual Revenue
Not available
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Net Profit
Not available
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EBITDA
Not available
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Total Equity Funding
$735 M (USD)
in 11 rounds
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Latest Funding Round
$250 M (USD), Series D
Jan 21, 2026
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Investors
Craft
& 20 more
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Employee Count
Not available
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Products & Services of OpenEvidence
OpenEvidence offers a comprehensive portfolio of products and services, including OpenEvidence App.
App providing multimedia and clinical findings for health professionals.
Funding Insights of OpenEvidence
OpenEvidence has successfully raised a total of $735M across 11 strategic funding rounds. The most recent funding activity was a Series D round of $250 million completed in January 2026. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
Investors in OpenEvidence
OpenEvidence has secured backing from 21 investors, including venture fund, institutional, and angel investors. Prominent investors backing the company include Craft, Kleiner Perkins and Blackstone.
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Sequoia Capital is engaged in venture capital investments.
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Corporate backed venture capital fund investing in multiple sectors
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Venture capital firm investing in early-stage tech startups
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Investor details for OpenEvidence
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Investments & Acquisitions by OpenEvidence
Investment portfolio details for OpenEvidence
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Financial Statements - OpenEvidence
Detailed financials for OpenEvidence
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Openevidence Comparisons
Peer comparison for OpenEvidence
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Competitors of OpenEvidence
OpenEvidence operates in a dynamic and competitive business environment, facing competition from various established players and emerging companies in the market. The competitive landscape includes prominent companies such as iDoctus, Copient Health, QxMD, Nested Knowledge and Exonicus, among others.
| Company Name | Domain | Founded year | HQ Location | Description |
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Medical app providing drug searches, interactions, and clinical tools for healthcare professionals.
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Predictive analysis solutions are provided for healthcare providers.
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Point-of-care digital tools are developed for healthcare professionals.
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Clinical evidence platform provided for pharma, device, and research entities.
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Medical training courses are offered to healthcare professionals.
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Detailed competitors of OpenEvidence
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Latest news on Openevidence
Complete news archive for OpenEvidence
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Frequently Asked Questions about OpenEvidence
OpenEvidence was founded in 2021.
OpenEvidence is headquartered in Cambridge, United States. It is registered at Cambridge, Massachusetts, United States.
OpenEvidence is a funded company, having raised a total of $735M across 11 funding rounds to date.
OpenEvidence was founded in 2021 in Cambridge, United States, as an AI-powered platform in the healthcare sector. Clinically relevant evidence from peer-reviewed literature is aggregated, synthesized, and visualized to support healthcare professionals. Access to accurate medical information is facilitated, aiding informed decision-making in clinical practice. Operations focus on enhancing usability of medical resources for professionals in the field.
OpenEvidence's top competitors include Nested Knowledge, QxMD and Exonicus.
OpenEvidence offers OpenEvidence App.
OpenEvidence has 21 investors. Key investors include Craft, Kleiner Perkins, Blackstone, European Union, and Sequoia Capital.