Flatiron Health
AcquiredNew York, US Β· Founded 2012 Β· 1,456 employees on LinkedIn Β· 11 known investors
Flatiron Health combines AI-powered technology and clinical expertise with real-world oncology data to help healthcare providers and life science organizations improve cancer care and research. The company operates a global oncology platform serving community oncologists and research institutions across the US, UK, Germany, and Japan.
Also known as Flatiron
Founders & leadership
Flatiron Health was founded in 2012 by Nat Turner and Zachary Weinberg.


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Board
Investors Β· 11
Also in the syndicate Β· 3
Reported raises Β· per SEC filings
Form D private placements$8M disclosed across 1 of 3 rounds Β· 2012β2016
βΆ$8MraisedMar 2014 Β· 22 investors Β· Other TechnologyRule 506(b)
- Zachary WeinbergDirector, Executive Officer
- Nat TurnerExecutive Officer, Director
- Krishna YeshwantDirector
- Offering amount
- $8M
- Amount sold
- $8M
- First sale
- Oct 2012
- Incorporated
- Corporation, Delaware, 2012
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Company profile
researched Aug 2026Flatiron Health is a healthtech company focused on oncology data, intelligence and technology. It combines AI-powered technology, clinical expertise and real-world oncology data to support both healthcare providers and life sciences organizations. Its "global oncology engine" is built on one of the largest oncology datasets spanning the United States, United Kingdom, Germany and Japan, and is paired with point-of-care software used by community oncologists in the US.
The company operates two principal lines of solutions. For the point of care, it provides oncology-specific software, including the OncoEMR electronic medical record (acquired with Altos Solutions in 2014), and historically OncoAnalytics analytics, OncoBilling practice management and the SeeYourChart patient portal under the OncologyCloud/OncoCloud platform. For life sciences, it offers Flatiron Real-World Data, Real-World Evidence Insights advisory and analytics, and Flatiron Telescope, an AI platform that uses natural language querying to interrogate Flatiron datasets. Use cases span clinical development (natural history, biomarker testing strategy, target product profile design, trial design, predictive modeling and digital twins), HEOR/RWE, market access and HTA submissions, regulatory interactions, and commercial analytics.
Flatiron states that its real-world data has informed more than 2,000 peer-reviewed publications, that it has 5M+ patient records covering the four largest cancer geographies, that its evidence has informed 45+ global regulatory decisions, and that 100% of the top 20 oncology life sciences companies partner with the company. It also reports partnerships with the National Cancer Institute, the U.S. Food & Drug Administration and the National Comprehensive Cancer Network, and founding membership of the RWE Alliance.
Founding story
Flatiron Health was founded in 2012 by Nat Turner and Zach Weinberg after they witnessed several family members and friends battle cancer. Observing that physicians were increasingly documenting care electronically but lacked advanced analytics and decision-support tools, they set out to build a software platform to make that data usable at scale. Google had acquired their previous company, Invite Media, in 2010.
Business model
Flatiron sells oncology software and data/analytics services. Cancer care providers use its point-of-care technology (notably the OncoEMR electronic medical record, plus practice management, billing, patient portal and analytics tools), while life sciences organizations purchase real-world data, evidence-generation services and AI-based analytics platforms derived from de-identified patient records collected across its provider network.
Sources describe commercial offerings to two customer groups β provider-facing software products and life science data/evidence offerings purchased by pharmaceutical companies (for example, Roche agreed in 2016 to a multi-year, non-exclusive agreement to purchase a number of Flatiron's life science offerings) β but do not disclose pricing structures or revenue figures.
Traction
Reported metrics include 5M+ patient records (life sciences page) and more than 3 million patient records available for research in its network (75% community, 25% academic), 280+ community cancer centers and eight major academic cancer centers, 20+ top global oncology therapeutics developers, 2,000+ peer-reviewed publications, 45+ global regulatory decisions informed, and 2,500+ employees. At the time of the 2014 Altos acquisition, Altos software was used by over 1,300 oncology clinicians whose physicians saw over 550,000 unique cancer patients annually.
Latest developments
In July 2026 Flatiron announced its first partnership in Scotland, described as a nearly 70% expansion of its global network, and Quest Diagnostics became the largest clinical reference lab to extend oncology test access through OncoEMR MPI, with American Oncology Network and other community providers launching in a pilot providing access to Haystack MRD. In August 2026 the company announced three research acceptances at WCLC 2026, and it has multiple abstracts accepted for ASCO in May 2026.
βΈFull profile β market position, technology, go-to-market, geography, history, risks & controversies
Market position
Positions itself as a leading source of real-world oncology data; the 2014 Altos Solutions acquisition was described as creating the world's largest single source of structured real-world oncology data and intelligence. The company reports that all of the top 20 oncology life sciences companies are partners and that 2,000+ peer-reviewed publications have used its data.
Combination of point-of-care EMR data capture with large-scale de-identified real-world data and evidence services; multinational dataset across the four largest cancer geographies; 20+ publications validating its real-world endpoints; in-house multidisciplinary oncology expertise; affiliation with the Roche Group while operating independently.
Technology
A data transformation engine that extracts, processes and standardizes structured and unstructured clinical, practice-management and billing data β including physician free-text notes β into a common ontology, layered with machine learning and AI. Products include OncoEMR, OncoAnalytics, OncoBilling, SeeYourChart, the Flatiron Federated integration layer for practices on other EMRs, and Flatiron Telescope, a natural-language AI interface to Flatiron datasets. Human clinical expertise (oncologists, research scientists, biostatisticians, epidemiologists) is combined with automated abstraction.
Go-to-market
Direct enterprise sales and partnerships with provider networks and pharmaceutical companies, supported by peer-reviewed publication output, conference presence (ASCO, WCLC, ISPE, Fierce Pharma Week, PCOC) and collaborations with regulators, cooperative groups and diagnostics companies such as Quest Diagnostics.
Community oncology practices and cancer centers (more than 280 community cancer centers and eight major academic cancer centers in the US), academic and health system researchers, and life sciences/biopharma organizations, including 20+ top global developers of oncology therapeutics; regulators and research bodies such as the FDA, NCI and NCCN are cited as partners.
Geography
Headquartered in New York (233 Spring Street), with a US office in Durham, North Carolina, and international offices in London (UK), Cologne (Germany) and Tokyo (Japan). Data assets cover the US, UK, Germany and Japan, and the company announced its first partnership in Scotland in July 2026.
History
Founded in 2012 in New York. In May 2014 the company raised a $130 million Series B led by Google Ventures and agreed to acquire Altos Solutions, the developer of the OncoEMR oncology EMR, with the deal expected to close by the end of May 2014; Altos was to continue operating as a wholly owned subsidiary. In January 2016 Flatiron raised a $175 million Series C led by Roche, alongside a multi-year non-exclusive commercial agreement with Roche under which Roche Pharmaceuticals COO Daniel O'Day joined the board. Since 2018 Flatiron has been an independent affiliate of the Roche Group, and it has since expanded internationally into the UK, Germany and Japan.
Risks & controversies
No controversies or risk disclosures appear in the available sources. The business depends on de-identified patient data from provider networks and on relationships with life sciences customers, including its majority stakeholder-affiliated partner Roche, though the sources do not quantify concentration.
Compiled by commissioned research from 8 cited public sources β announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed β not independently audited.
Founder mafia
The Flatiron Health mafia β10 people who came through Flatiron Health went on to found or lead other companies.
Timeline Β· 9
launches, deals, and filingsFlatiron announced three research acceptances at WCLC 2026 presenting real-world evidence on NSCLC treatment patterns and outcomes.
Flatiron announced its first partnership in Scotland, described as a nearly 70% expansion of the company's global network, broadening the geographic and clinical breadth of its multinational data.
Quest Diagnostics became the largest clinical reference lab to extend oncology test access through OncoEMR MPI, with American Oncology Network and other community oncology providers launching as part of a pilot program providing access to Haystack MRD.
Flatiron Health has been an independent affiliate of the Roche Group since 2018.
Series C round totaling $175 million led by Roche, with Allen & Company, Baillie Gifford and Casdin Capital participating.
$175M source β
In parallel with the Series C, Roche agreed to purchase a number of Flatiron's life science offerings and collaborate on accelerating clinical trials and personalized medicine; Roche Pharmaceuticals COO Daniel O'Day took a board seat. Closing was subject to Hart-Scott-Rodino waiting periods.
Flatiron agreed to acquire the web-based oncology software company Altos Solutions, developer of the OncoEMR electronic medical record; the transaction was expected to close by end of May 2014, with Altos continuing as a wholly owned subsidiary.
Series B round led by Google Ventures with participation from existing investors First Round Capital and LabCorp; Andrew Conrad, Director at Google[X], joined the board.
$130M source β
Flatiron announced it would continue supporting cancer centers on other EMR systems through the launch of the Flatiron Federated integration layer.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
In the news
βΈResearch sources Β· 8
primary sources listed
- Flatiron Healthflatiron.com Β· web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Flatiron Health do?
- Oncology healthtech company combining real-world cancer data, AI and point-of-care software; a Roche Group affiliate since 2018.
- Who founded Flatiron Health?
- Flatiron Health was founded by Nat Turner, Zachary Weinberg in 2012.
- Who are Flatiron Health's investors?
- Flatiron Health's investors include Carnrite Ventures, First Round Capital, Great Oaks Venture Capital, GV (Google Ventures), Stripes, SV Angel, Valkyrie Ventures Management, Llc, Baillie Gifford.
- How much funding has Flatiron Health raised?
- Flatiron Health has disclosed $8M raised across 1 of its 3 known rounds.
- Where is Flatiron Health headquartered?
- Flatiron Health is headquartered in New York, US.







