When was OpenEvidence founded?

OpenEvidence was founded in 2021 and became a unicorn in 2025.

Where is OpenEvidence located?

OpenEvidence is headquartered in Miami, United States. It is registered at San Francisco , California 94065, US.

How many employees does OpenEvidence have?

As of May 31, 2026, the latest employee count at OpenEvidence is 119.

Is OpenEvidence a funded company?

OpenEvidence is a funded company, having raised a total of $735M across 11 funding rounds to date. The company's 1st funding round was a $166K Grant (prize money) round, raised on Jan 01, 2015.

How much is OpenEvidence worth?

The latest valuation of OpenEvidence is $6B as of Oct 20, 2025.

When was the latest funding round of OpenEvidence?

OpenEvidence's latest funding was a $250M Series D round on Jan 21, 2026, with participation from 19 investors.

Is OpenEvidence a Healthcare IT company?

The primary sectors of OpenEvidence are Healthcare IT and Artificial Intelligence.

Where does OpenEvidence rank among its competitors?

OpenEvidence ranks 1st amongst 141 active competitors, of which 11 are funded. It stands 1st in terms of total funding among its competitors. The most recent competitor to raise funding was OpenEvidence, which secured $250M in Jan, 2026.

Who are the top competitors of OpenEvidence?

OpenEvidence's top competitors include Nested Knowledge, iDoctus and Dawaey. Among them, OpenEvidence secured the most recent funding round in January, 2026.

OpenEvidence - 2026 Company Profile, Team, Funding & Competitors

OpenEvidence is a series D company based in Miami (United States), founded in 2021 by Daniel Nadler and Zachary Ziegler. It operates as an AI powered medical search platform for healthcare professionals. OpenEvidence has raised $735M in funding from investors like Google Ventures, Sequoia Capital and Thrive Capital, with a current valuation of $6B. The company has 141 active competitors, including 11 funded and 9 that have exited. Its top competitors include companies like Nested Knowledge, iDoctus and Dawaey.

Sectors and market segments that OpenEvidence operate in

OpenEvidence serves in the HealthTech, Native AI market segments.The primary business model of OpenEvidence are:

Company Details

AI powered medical search platform for healthcare professionals. It aggregates, synthesizes, and visualizes clinically relevant evidence in a format. It aims to provide healthcare professionals with accurate and access to medical information, supporting informed decision making in clinical practice. It provides solutions to enhance the accessibility and usability of peer reviewed medical literature for healthcare professionals.

Website: www.openevidence.com/
Social
Email ID: *****@openevidence.com
Registered Address: San Francisco , California 94065, US

Key Metrics

Founded Year

2021

Location

Miami, United States

Stage

Series D

Total Funding

$735M in 11 rounds

Latest Funding Round

Series D, Jan 21, 2026, $250M

Post Money Valuation

$6B as on Oct 20, 2025

Investors

Google Ventures & 22 more

Ranked

1^st among 141 active competitors

Employee Count

119 as on May 31, 2026

Investment & Acquisitions

Amaro

Similar Companies

Innovaccer & 2509 more

View OpenEvidence's full profile

OpenEvidence is associated with 1 legal entity given below:

Legal Entity Name	Date of Incorporation	Revenue	Latest Employee Count	Documents
OPENEVIDENCE INC. CIN: 7540731 , United States, Active	Jul 31, 2019	-	-	-

OpenEvidence has raised a total funding of $735M over 11 rounds. Its first funding round was on Jan 01, 2015. Its latest funding round was a Series D round on Jan 21, 2026 for $250M. 19 investors participated in its latest round. OpenEvidence has 22 institutional investors and 1 angel investor.

Here is the list of recent funding rounds of OpenEvidence:

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Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
Jan 21, 2026	$250M	Series D	-	-	Thrive Capital, DST Global	Sequoia Capital, Google Ventures, Nvidia, Kleiner Perkins, Blackstone, Henry Kravis, Coatue, Conviction, Iconiq Capital, Greycroft, Breyer Capital, Bond Capital, Craft Ventures, Goanna Capital, Meritech, Alkeon Capital Management, Mayo Clinic
Oct 20, 2025	$200M	Series C	$6B	-	Google Ventures	Sequoia Capital, Kleiner Perkins, Thrive Capital, Coatue, Bond Capital, Blackstone
Jul 15, 2025	$210M	Series B	$3.5B	-	Google Ventures, Kleiner Perkins	Sequoia Capital, Coatue, Thrive Capital, Conviction

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View details of OpenEvidence's funding rounds and investors

The founders of OpenEvidence are Daniel Nadler and Zachary Ziegler.

Here are the details of OpenEvidence's key team members:

Daniel Nadler: Co-Founder of OpenEvidence and founder of 1 other company. They are also an angel investor in 3 startups and serve on the board of 1 company.
Contact Info: 2 email addresses
Zachary Ziegler: Co-Founder & CTO of OpenEvidence.
Contact Info: 1 email address

View details of OpenEvidence's Founder profiles and Board Members

OpenEvidence's employee count trend

OpenEvidence has 119 employees as of May 26. Here is OpenEvidence's employee count trend over the years:

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Top competitors of OpenEvidence include Nested Knowledge, iDoctus and Dawaey. Here is the list of Top 10 competitors of OpenEvidence, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	OpenEvidence 2021, Miami (United States), Series D	AI powered medical search platform for healthcare professionals	$735M	Meritech, Google Ventures & 21 others	78/100
2nd	Nested Knowledge 2018, Saint Paul (United States), Series A	Provider of a clinical evidence platform for pharma, device, and research entities	$6.76M	HHS, Octane & 1 others	58/100
3rd	iDoctus 2011, Spain (United States), Unfunded	Provider of learning platform for medical professionals	-	-	54/100
4th	Dawaey 2016, Cairo (Egypt), Unfunded	Provider of an AI-based app for drug search for healthcare providers	-	-	43/100
5th	Bulletin Healthcare 2010, Reston (United States), Unfunded	Platform for providing email briefings	-	-	42/100
6th	DynaMed 2019, Ipswich (United States), Unfunded	Information provider for diseases	-	-	41/100
7th	iMD 2012, Tehran (Iran), Unfunded	Clinical resource platform for healthcare professionals	-	-	41/100
8th	QxMD 2006, Vancouver (Canada), Acquired	Mobile medical apps for healthcare professionals	-	-	41/100
9th	thumbroll 2011, Los Angeles (United States), Unfunded	Provider of app for education for medical trainee and professionals.	-	-	40/100
10th	Makindo 2024, United Kingdom, Unfunded	Provides fo medical encyclopedia and educational resource for medical professionals	-	-	40/100