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.

BiotechHealthcare

Funding summaryUpdated 26 Oct 2026

$109Mraised across 3 rounds since 2015, from 3 sources

$2.9MGrant$6.1MRound$100MSeries B

Latest round: Series B, $100MDec 2021
Step-upi: 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.

2015201620172018201920202021

$2.9MGrant$6.1MRound$100MSeries B

First round: Grant, $2.9M
Biggest round: $100M
Usual gap between rounds: 3.9 years

The rounds

Dec 2021
Series B$100M4 new
Source recorded
Mar 2019
Round$6.1M2 new
- 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 GrubbsVice President of Manufacturing
Julien RohelVice President of Operations
Monica WilliamsChief 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.

Grant2015Round2019Series B2021

Techstars

RA Capital Management

Foresite Capital

J2 Ventures

Cedars SinaiVertical Venture Partners/ Techstars

Everyone who backed them

TechstarsVC firm1round

RA Capital ManagementPrivate equity1round

Foresite CapitalPrivate equity1round

J2 VenturesVC firm1round

Cedars SinaiCorporate VC1round

Vertical Venture Partners/ Techstarsno record of our own yet1round

Missing a round, or an investor who was in one? Tell us.

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.