# Flatiron Health funding: rounds and investors > Flatiron Health has raised $151M across 4 rounds since 2013. Investors include First Round Capital, SV Angel and Google Ventures. Every round with its source. Source: https://millionrounds.com/company/flatiron-health (Millionrounds; every figure on the page links to its filing or article) United States · [Series D startup](https://millionrounds.com/companies) # Who invested in *Flatiron Health* 4 rounds we have observed, with the 10 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it. Biotech Funding summary Updated 26 Oct 2026 **$151M** raised across 4 rounds since 2013, from 4 sources **$8.0M** Series A **$130M** Series B **$1.4M** Venture **$12M** Series D - **Latest round:** Series D, $12M Dec 2021 - **Biggest round:** $130M Series B · May 2014 - **Step-up i:** 8.2× - **Investors:** 10 See who backed them ## The funding story Each circle is a round, placed by date and sized by amount. The line above is the running total. 2013 2015 2017 2019 2021 **$8.0M** Series A **$130M** Series B **$1.4M** Venture **$12M** Series D - **First round:** Series A, $8.0M - **Biggest round:** $130M - **Usual gap between rounds:** 16 months ## The rounds - **Dec 2021** Series D **$12M** *1 new* *3 returning* [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) [SV Angel](https://millionrounds.com/fund/sv-angel) [First Round Capital](https://millionrounds.com/fund/first-round-capital) [BoxGroup](https://millionrounds.com/fund/boxgroup) Source recorded - **Sept 2014** Venture **$1.4M** No investor was named in the report. From a historical funding record - **May 2014** Series B **$130M** *3 returning* [Google Ventures](https://millionrounds.com/fund/gv) [First Round Capital](https://millionrounds.com/fund/first-round-capital) [Laboratory Corporation of America](https://millionrounds.com/fund/laboratory-corporation-of-america) From a historical funding record SEC filing: $8.0M sold, first sale Oct 2012 - **Jan 2013** Series A **$8.0M** *9 new* [SV Angel](https://millionrounds.com/fund/sv-angel) [Google Ventures](https://millionrounds.com/fund/gv) [First Round Capital](https://millionrounds.com/fund/first-round-capital) [BoxGroup](https://millionrounds.com/fund/boxgroup) [Great Oaks Venture Capital](https://millionrounds.com/fund/great-oaks-venture-capital) [Social Capital](https://millionrounds.com/fund/social-capital) [IA Ventures](https://millionrounds.com/fund/ia-ventures) [The Social+Capital Partnership](https://millionrounds.com/fund/the-social-capital-partnership) [Laboratory Corporation of America](https://millionrounds.com/fund/laboratory-corporation-of-america) Reported by techcrunch.com ## Founders and team From Flatiron Health's own website and the SEC filings it signed: 9 on the team. - **Nathan Hubbard** Chief Executive Officer - **Allison Candido** Chief Technology Officer - **Cal Brouilette** Chief Financial Officer - **Julia Morton** Chief Operating Officer - **Kate Estep** Chief Product Officer - **Michael Bierl** Chief Business Officer - **Quincy Weatherspoon** Chief Network Officer, US Point of Care - **Nat Turner** Executive Officer, Director i - **Zachary Weinberg** Director, Executive Officer i On the board, as filed i *Krishna Yeshwant* ## Who was in which round The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led. **Series A** 2013 **Series B** 2014 **Venture** 2014 **Series D** 2021 [First Round Capital](https://millionrounds.com/fund/first-round-capital) [SV Angel](https://millionrounds.com/fund/sv-angel) [Google Ventures](https://millionrounds.com/fund/gv) [BoxGroup](https://millionrounds.com/fund/boxgroup) [Laboratory Corporation of America](https://millionrounds.com/fund/laboratory-corporation-of-america) [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) [Great Oaks Venture Capital](https://millionrounds.com/fund/great-oaks-venture-capital) [Social Capital](https://millionrounds.com/fund/social-capital) [IA Ventures](https://millionrounds.com/fund/ia-ventures) [The Social+Capital Partnership](https://millionrounds.com/fund/the-social-capital-partnership) ## Everyone who backed them [First Round Capital](https://millionrounds.com/fund/first-round-capital) VC firm **3** rounds [SV Angel](https://millionrounds.com/fund/sv-angel) VC firm **2** rounds [Google Ventures](https://millionrounds.com/fund/gv) Corporate VC **2** rounds [BoxGroup](https://millionrounds.com/fund/boxgroup) VC firm **2** rounds [Laboratory Corporation of America](https://millionrounds.com/fund/laboratory-corporation-of-america) Growth equity **2** rounds [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) VC firm **1** round [Great Oaks Venture Capital](https://millionrounds.com/fund/great-oaks-venture-capital) VC firm **1** round [Social Capital](https://millionrounds.com/fund/social-capital) VC firm **1** round [IA Ventures](https://millionrounds.com/fund/ia-ventures) VC firm **1** round [The Social+Capital Partnership](https://millionrounds.com/fund/the-social-capital-partnership) VC firm **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=flatiron-health). ## Also claim to have backed them These 2 firms list Flatiron Health as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above. [Steve Martocci](https://millionrounds.com/fund/steve-martocci) Angel Per its own site [Magellan](https://millionrounds.com/fund/magellan) Venture studio Per its own site ## Quick answers about Flatiron Health ### Who invested in Flatiron Health? Flatiron Health's investors include First Round Capital, SV Angel, Google Ventures, BoxGroup and Laboratory Corporation of America, and 5 more on record. ### How much has Flatiron Health raised? Flatiron Health has raised $151M across 4 rounds since 2013. ### When did Flatiron Health last raise? Flatiron Health's most recent round was a Series D of $12M in Dec 2021. ### What was Flatiron Health's biggest round? Flatiron Health's largest round on record is $130M (Series B), in May 2014. ### Who backed Flatiron Health first? Flatiron Health's first round on record, in Jan 2013, was backed by SV Angel, Google Ventures and First Round Capital and 6 others. ### What stage is Flatiron Health at? Flatiron Health's latest named round is a Series D, in Dec 2021. ### Where is Flatiron Health based? Flatiron Health is based in the United States. ## Companies like Flatiron Health In the same sector, and raised in the last eighteen months. [**Star Therapeutics** $325M · Oct 2026](https://millionrounds.com/company/star-therapeutics)[**Promaxo** $106M · Oct 2026](https://millionrounds.com/company/promaxo)[**Prolific Machines** $105M · Oct 2026](https://millionrounds.com/company/prolific-machines)[**IMIO** $19M · Oct 2026](https://millionrounds.com/company/imio)[**Clinical Ink** $24M · Oct 2026](https://millionrounds.com/company/clinical-ink)[**Rejuvenate Bio** $13M · Oct 2026](https://millionrounds.com/company/rejuvenate-bio) ## Find investors like these Search every investor by what they have actually funded, then narrow to your stage and market. Free. Open the investor searchOr these rounds in the app