# Tasso funding: rounds and investors > Tasso has raised $109M across 3 rounds since 2015. Investors include Techstars, RA Capital Management and Foresite Capital. Every round with its source. Source: https://millionrounds.com/company/tasso (Millionrounds; every figure on the page links to its filing or article) United States · [Series B startup](https://millionrounds.com/companies) # Who invested in *Tasso* 3 rounds we have observed, with the 6 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 Healthcare Funding summary Updated 26 Oct 2026 **$109M** raised across 3 rounds since 2015, from 3 sources **$2.9M** Grant **$6.1M** Round **$100M** Series B - **Latest round:** Series B, $100M Dec 2021 - **Step-up i:** 16.4× - **Investors:** 6 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. 2015 2016 2017 2018 2019 2020 2021 **$2.9M** Grant **$6.1M** Round **$100M** Series B - **First round:** Grant, $2.9M - **Biggest round:** $100M - **Usual gap between rounds:** 3.9 years ## The rounds - **Dec 2021** Series B **$100M** *4 new* [Techstars](https://millionrounds.com/fund/techstars) [RA Capital Management](https://millionrounds.com/fund/ra-capital-management) [Foresite Capital](https://millionrounds.com/fund/forsite-capital) [J2 Ventures](https://millionrounds.com/fund/j2-ventures) Source recorded - **Mar 2019** Round **$6.1M** *2 new* [Cedars Sinai](https://millionrounds.com/fund/cedars-sinai) Vertical Venture Partners/ Techstars Reported by FinSMEs - **Apr 2015** Grant **$2.9M** No investor was named in the report. From a historical funding record ## Founders and team From Tasso's own website: 3 on the team. - **Hal Grubbs** Vice President of Manufacturing - **Julien Rohel** Vice President of Operations - **Monica Williams** Chief Financial Officer ## 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. **Grant** 2015 **Round** 2019 **Series B** 2021 [Techstars](https://millionrounds.com/fund/techstars) [RA Capital Management](https://millionrounds.com/fund/ra-capital-management) [Foresite Capital](https://millionrounds.com/fund/forsite-capital) [J2 Ventures](https://millionrounds.com/fund/j2-ventures) [Cedars Sinai](https://millionrounds.com/fund/cedars-sinai) Vertical Venture Partners/ Techstars ## Everyone who backed them [Techstars](https://millionrounds.com/fund/techstars) VC firm **1** round [RA Capital Management](https://millionrounds.com/fund/ra-capital-management) Private equity **1** round [Foresite Capital](https://millionrounds.com/fund/forsite-capital) Private equity **1** round [J2 Ventures](https://millionrounds.com/fund/j2-ventures) VC firm **1** round [Cedars Sinai](https://millionrounds.com/fund/cedars-sinai) Corporate VC **1** round Vertical Venture Partners/ Techstars no record of our own yet **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=tasso). ## Also claim to have backed them This firm lists Tasso as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above. [Profound Ventures, LLC](https://millionrounds.com/fund/profound-ventures-llc) Venture studio Per its own site ## Quick answers about Tasso ### Who invested in Tasso? Tasso's investors include Techstars, RA Capital Management, Foresite Capital, J2 Ventures and Cedars Sinai, and 1 more on record. ### How much has Tasso raised? Tasso has raised $109M across 3 rounds since 2015. ### When did Tasso last raise? Tasso's most recent round was a Series B of $100M in Dec 2021. ### What was Tasso's biggest round? Its most recent round, $100M in Dec 2021, is also its largest on record. ### Who backed Tasso first? Tasso's first round on record, in Mar 2019, was backed by Cedars Sinai and Vertical Venture Partners/ Techstars. ### What stage is Tasso at? Tasso's latest named round is a Series B, in Dec 2021. ### Where is Tasso based? Tasso is based in the United States. ## Companies like Tasso 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)[**AI** $18M · Oct 2026](https://millionrounds.com/company/ai)[**Baba** $40M · Oct 2026](https://millionrounds.com/company/baba)[**IMIO** $19M · Oct 2026](https://millionrounds.com/company/imio) ## 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