# Duetto funding: rounds and investors > Duetto has raised $173M across 6 rounds since 2012. Investors include Battery Ventures, Accel and Marc Benioff. Every round with its source. Source: https://millionrounds.com/company/duetto (Millionrounds; every figure on the page links to its filing or article) United States · [Series D startup](https://millionrounds.com/companies) # Who invested in *Duetto* 6 rounds we have observed, with the 12 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. Healthcare Funding summary Updated 26 Oct 2026 **$173M** raised across 6 rounds since 2012, from 6 sources **$2.1M** Seed **$10M** Series A **$21M** Series B **$30M** Series C **$30M** Series C **$80M** Series D - **Latest round:** Series D, $80M Feb 2018 - **Step-up i:** 2.7× - **Investors:** 12 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. 2012 2013 2014 2015 2016 2017 2018 **$2.1M** Seed **$10M** Series A **$21M** Series B **$30M** Series C **$30M** Series C **$80M** Series D - **First round:** Seed, $2.1M - **Biggest round:** $80M - **Usual gap between rounds:** 13 months ## The rounds - **Feb 2018** Series D **$80M** *1 new* *3 returning* [Accel](https://millionrounds.com/fund/accel) [Battery Ventures](https://millionrounds.com/fund/battery-ventures) [Benchmark](https://millionrounds.com/fund/benchmark) [Warburg Pincus](https://millionrounds.com/fund/warburg-pincus) Reported by FinSMEs - **Dec 2015** Series C **$30M** No investor was named in the report. From a historical funding record - **Aug 2015** Series C **$30M** *1 new* *6 returning* [Accel](https://millionrounds.com/fund/accel) [Battery Ventures](https://millionrounds.com/fund/battery-ventures) [Icon Ventures](https://millionrounds.com/fund/icon-ventures) [Marc Benioff](https://millionrounds.com/fund/marc-benioff) [Altimeter](https://millionrounds.com/fund/altimeter-capital) [Jaws Ventures](https://millionrounds.com/fund/jaws-ventures) [Leland Pillsbury](https://millionrounds.com/fund/leland-pillsbury) From a historical funding record - **Jul 2014** Series B **$21M** *2 new* *3 returning* [Accel](https://millionrounds.com/fund/accel) [Battery Ventures](https://millionrounds.com/fund/battery-ventures) [Marc Benioff](https://millionrounds.com/fund/marc-benioff) [Altimeter](https://millionrounds.com/fund/altimeter-capital) [Leland Pillsbury](https://millionrounds.com/fund/leland-pillsbury) From a historical funding record - **Dec 2012** Series A **$10M** *4 new* *2 returning* [Battery Ventures](https://millionrounds.com/fund/battery-ventures) [Trinity Ventures](https://millionrounds.com/fund/trinity-ventures) [Marc Benioff](https://millionrounds.com/fund/marc-benioff) [Altimeter](https://millionrounds.com/fund/altimeter-capital) [Thayer Ventures](https://millionrounds.com/fund/thayer-ventures) [Dan Scholnick](https://millionrounds.com/fund/dan-scholnick) Reported by finance.yahoo.com - **Apr 2012** Seed **$2.1M** *4 new* [Battery Ventures](https://millionrounds.com/fund/battery-ventures) [Benchmark](https://millionrounds.com/fund/benchmark) [Jaws Ventures](https://millionrounds.com/fund/jaws-ventures) [Dan Scholnick](https://millionrounds.com/fund/dan-scholnick) Reported by techcrunch.com ## 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. **Seed** 2012 **Series A** 2012 **Series B** 2014 **Series C** 2015 **Series C** 2015 **Series D** 2018 [Battery Ventures](https://millionrounds.com/fund/battery-ventures) [Accel](https://millionrounds.com/fund/accel) [Marc Benioff](https://millionrounds.com/fund/marc-benioff) [Altimeter](https://millionrounds.com/fund/altimeter-capital) [Benchmark](https://millionrounds.com/fund/benchmark) [Jaws Ventures](https://millionrounds.com/fund/jaws-ventures) [Dan Scholnick](https://millionrounds.com/fund/dan-scholnick) [Leland Pillsbury](https://millionrounds.com/fund/leland-pillsbury) [Trinity Ventures](https://millionrounds.com/fund/trinity-ventures) [Warburg Pincus](https://millionrounds.com/fund/warburg-pincus) ## Everyone who backed them [Battery Ventures](https://millionrounds.com/fund/battery-ventures) VC firm **5** rounds [Accel](https://millionrounds.com/fund/accel) VC firm **3** rounds [Marc Benioff](https://millionrounds.com/fund/marc-benioff) VC firm **3** rounds [Altimeter](https://millionrounds.com/fund/altimeter-capital) VC firm **3** rounds [Benchmark](https://millionrounds.com/fund/benchmark) VC firm **2** rounds [Jaws Ventures](https://millionrounds.com/fund/jaws-ventures) VC firm **2** rounds [Dan Scholnick](https://millionrounds.com/fund/dan-scholnick) Angel **2** rounds [Leland Pillsbury](https://millionrounds.com/fund/leland-pillsbury) Growth equity **2** rounds [Trinity Ventures](https://millionrounds.com/fund/trinity-ventures) VC firm **1** round [Warburg Pincus](https://millionrounds.com/fund/warburg-pincus) Private equity **1** round [Icon Ventures](https://millionrounds.com/fund/icon-ventures) VC firm **1** round [Thayer Ventures](https://millionrounds.com/fund/thayer-ventures) VC firm **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=duetto). ## Also claim to have backed them These 2 firms list Duetto 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. [GrowthCurve Capital](https://millionrounds.com/fund/growthcurve-capital) Private equity Per its own site [L Capital LLC](https://millionrounds.com/fund/l-capital-llc) Private equity Per its own site ## Quick answers about Duetto ### Who invested in Duetto? Duetto's investors include Battery Ventures, Accel, Marc Benioff, Altimeter and Benchmark, and 7 more on record. ### How much has Duetto raised? Duetto has raised $173M across 6 rounds since 2012. ### When did Duetto last raise? Duetto's most recent round was a Series D of $80M in Feb 2018. ### What was Duetto's biggest round? Its most recent round, $80M in Feb 2018, is also its largest on record. ### Who backed Duetto first? Duetto's first round on record, in Apr 2012, was backed by Battery Ventures, Benchmark and Jaws Ventures and 1 others. ### What stage is Duetto at? Duetto's latest named round is a Series D, in Feb 2018. ### Where is Duetto based? Duetto is based in the United States. ## Companies like Duetto 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)[**AI** $18M · Oct 2026](https://millionrounds.com/company/ai)[**Baba** $40M · Oct 2026](https://millionrounds.com/company/baba)[**Rejuvenate Bio** $13M · Oct 2026](https://millionrounds.com/company/rejuvenate-bio)[**Clinical Ink** $24M · Oct 2026](https://millionrounds.com/company/clinical-ink) ## 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