An AI search engine for doctors
openevidence.comLinkedInMiami, United StatesAIFounded 2022
LATEST ROUND
Series E
$250M · 2026-09-24
RAISED ON RECORD · USD
$985M
across 5 verified rounds
INVESTORS
13
7 leads
SOURCES
20
from 15 publishers
An AI search engine for doctors
openevidence.comLinkedInMiami, United StatesAIFounded 2022
4 sources · checked 1 time, last 26d ago
Sources agree on the $250 million amount, Series E, $15 billion valuation, September 28 announcement date, and the two lead investors.
Published by hand (beckershospitalreview.com): "OpenEvidence has raised $250 million in a funding round led by Andreessen Horowitz and Byers Capital, valuing the AI clinical decision-support platform at $15 billion.": Checked by hand: Becker's states a new $250M round at $15B (Sept 2026); it is not the January Series D at a lower valuation that the hold names.
Published by hand (beckershospitalreview.com): "OpenEvidence has raised $250 million in a funding round led by Andreessen Horowitz and Byers Capital, valuing the AI clinical decision-support platform at $15 billion.": Checked by hand: The September 2026 round ($250M at $15B, a16z and Byers) is a separate round from January's $250M Series D at $12B (Thrive, DST); Business Insider says 'In January, OpenEvidence raised a new round of funding that valued the company at $12 billion.'
7 sources · checked 1 time, last 43d ago
The supplied publication date is October 28, 2026, but the article itself is dated January 21, 2026; the article date is more specific. Previous investors are not individually identified as Series D participants.
3 sources
The source also reports nearly $500 million raised since founding, but that is a cumulative total rather than this round's financing total.
Published by hand (techcrunch.com): "OpenEvidence, the ChatGPT for doctors, raises $200M at $6B valuation": Checked by hand: TechCrunch states the $200M at $6B.
3 sources
The source calls Sequoia Capital the Series A lead but also explicitly says it followed on in this Series B, so it is included as a participant. The Cambridge dateline does not establish headquarters.
3 sources
The source also says total funding exceeds $100 million, but that is total amount raised to date, not this round's financing total.
| Round | Amount | Announced | Lead | Buzz |
|---|---|---|---|---|
| Series E | $250M at $15B valuation | 2026-09-24 | Andreessen Horowitz, Byers Capital | No recent discussion |
4 sources · checked 1 time, last 26d ago [ VERIFIED · CORRECTED ] read against 2 of 4 sources
Sources agree on the $250 million amount, Series E, $15 billion valuation, September 28 announcement date, and the two lead investors. Published by hand (beckershospitalreview.com): "OpenEvidence has raised $250 million in a funding round led by Andreessen Horowitz and Byers Capital, valuing the AI clinical decision-support platform at $15 billion.": Checked by hand: Becker's states a new $250M round at $15B (Sept 2026); it is not the January Series D at a lower valuation that the hold names. Published by hand (beckershospitalreview.com): "OpenEvidence has raised $250 million in a funding round led by Andreessen Horowitz and Byers Capital, valuing the AI clinical decision-support platform at $15 billion.": Checked by hand: The September 2026 round ($250M at $15B, a16z and Byers) is a separate round from January's $250M Series D at $12B (Thrive, DST); Business Insider says 'In January, OpenEvidence raised a new round of funding that valued the company at $12 billion.' | ||||
5 people on 9 outlets
Found on X with Firecrawl search
OpenEvidence builds an AI medical search and clinical-decision support tool that gives verified healthcare professionals fast, citation-linked answers from peer-reviewed evidence at the point of care.
Checked against 10 sources on Oct 14
| Series D [ REPORTED LATER ]: This round was announced before Fireround first saw it. It stays in the company's history, not in Latest, Trending, or alerts. | $250M $700M to date at $12 billion valuation | 2026-01-21 | Thrive Capital, DST Global Partners | No recent discussion |
7 sources · checked 1 time, last 43d ago [ VERIFIED · CORRECTED ] read against 1 of 7 sources
The supplied publication date is October 28, 2026, but the article itself is dated January 21, 2026; the article date is more specific. Previous investors are not individually identified as Series D participants. [ BUILT WITH ]·[ SEARCH ]found by Firecrawl search·[ SCRAPE ]7 pages read: businesswire.com, techcrunch.com, axios.com·[ JSON ]round read into a schema, with the sentence that states it·[ VERIFY ]correctedchecked against 1 of 7 sources·[ BRANDING ]logo and colour from the homepage·[ ]posts from 5 people, found with Firecrawl search·[ AGENT ]company research by the Firecrawl agent | ||||
| Series C [ HISTORY ]: An earlier round, from the company's own announcement, found while researching the company. Checked like any round, but not new, so it stays out of the daily feed and alerts; a date range shows it. | $200M $500M to date at $6 billion valuation | 2025-10-20 | GV (Google Ventures) | No recent discussion |
3 sources [ VERIFIED ] read against 1 of 3 sources
The source also reports nearly $500 million raised since founding, but that is a cumulative total rather than this round's financing total. Published by hand (techcrunch.com): "OpenEvidence, the ChatGPT for doctors, raises $200M at $6B valuation": Checked by hand: TechCrunch states the $200M at $6B. [ BUILT WITH ]·[ SEARCH ]found by Firecrawl search·[ SCRAPE ]3 pages read: siliconangle.com, techcrunch.com, fiercehealthcare.com·[ JSON ]round read into a schema, with the sentence that states it·[ VERIFY ]confirmedchecked against 1 of 3 sources·[ BRANDING ]logo and colour from the homepage·[ AGENT ]company research by the Firecrawl agent | ||||
| Series B [ HISTORY ]: An earlier round, from the company's own announcement, found while researching the company. Checked like any round, but not new, so it stays out of the daily feed and alerts; a date range shows it. | $210M $300M to date at $3.5 billion valuation | 2025-07-15 | Kleiner Perkins, GV (Google Ventures) | No recent discussion |
3 sources [ VERIFIED · CORRECTED ] read against 1 of 3 sources
The source calls Sequoia Capital the Series A lead but also explicitly says it followed on in this Series B, so it is included as a participant. The Cambridge dateline does not establish headquarters. [ BUILT WITH ]·[ SEARCH ]found by Firecrawl search·[ SCRAPE ]3 pages read: openevidence.com, prnewswire.com, mobihealthnews.com·[ JSON ]round read into a schema, with the sentence that states it·[ VERIFY ]correctedchecked against 1 of 3 sources·[ BRANDING ]logo and colour from the homepage·[ AGENT ]company research by the Firecrawl agent | ||||
| Series A [ HISTORY ]: An earlier round, from the company's own announcement, found while researching the company. Checked like any round, but not new, so it stays out of the daily feed and alerts; a date range shows it. | $75M $100M to date at $1 billion valuation | 2025-02-19 | Sequoia Capital | No recent discussion |
3 sources [ VERIFIED · CORRECTED ] read against 1 of 3 sources
The source also says total funding exceeds $100 million, but that is total amount raised to date, not this round's financing total. [ BUILT WITH ]·[ SEARCH ]found by Firecrawl search·[ SCRAPE ]3 pages read: prnewswire.com, siliconangle.com, techstartups.com·[ JSON ]round read into a schema, with the sentence that states it·[ VERIFY ]correctedchecked against 1 of 3 sources·[ BRANDING ]logo and colour from the homepage·[ AGENT ]company research by the Firecrawl agent | ||||
Also named as backers in company research: Nvidia, Goldman Sachs, Morgan Stanley, Mayo Clinic, Memorial Sloan Kettering Cancer Center, ICONIQ, Breyer Capital, Henry Kravis, Goanna, Meritech, Alkeon