# Quartet funding: rounds and investors

> Quartet has raised $100M across 2 rounds since 2017. Investors include F-Prime Capital, Oak HC/FT and Google Ventures. Every round with its source.

Source: https://millionrounds.com/company/quartet (Millionrounds; every figure on the page links to its filing or article)

United States · [Series D startup](https://millionrounds.com/companies)

# Who invested in *Quartet*

2 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

**$100M** raised across 2 rounds since 2017, from 2 sources

**$40M** Series C **$60M** Series D

- **Latest round:** Series D, $60M Jun 2019
- **Step-up i:** 1.5×
- **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.

2017 2018 2019

**$40M** Series C

**$60M** Series D

- **First round:** Series C, $40M
- **Biggest round:** $60M
- **Between rounds:** 2.4 years

## The rounds

- **Jun 2019** Series D **$60M** *3 new* *2 returning* [Google Ventures](https://millionrounds.com/fund/gv) [Polaris Partners](https://millionrounds.com/fund/polaris-partners) [F-Prime Capital](https://millionrounds.com/fund/f-prime) [Oak HC/FT](https://millionrounds.com/fund/oak-hc-ft) Centene Corporation Reported by FinSMEs
- **Jan 2017** Series C **$40M** *3 new* [F-Prime Capital](https://millionrounds.com/fund/f-prime) [Oak HC/FT](https://millionrounds.com/fund/oak-hc-ft) Polaris Partners/ GV Reported by VentureBeat

## 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 C** 2017 **Series D** 2019 [F-Prime Capital](https://millionrounds.com/fund/f-prime) [Oak HC/FT](https://millionrounds.com/fund/oak-hc-ft) [Google Ventures](https://millionrounds.com/fund/gv) [Polaris Partners](https://millionrounds.com/fund/polaris-partners) Centene Corporation Polaris Partners/ GV

## Everyone who backed them

[F-Prime Capital](https://millionrounds.com/fund/f-prime) VC firm **2** rounds

[Oak HC/FT](https://millionrounds.com/fund/oak-hc-ft) VC firm **2** rounds

[Google Ventures](https://millionrounds.com/fund/gv) Corporate VC **1** round

[Polaris Partners](https://millionrounds.com/fund/polaris-partners) VC firm **1** round

Centene Corporation no record of our own yet **1** round

Polaris Partners/ GV 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=quartet).

## Quick answers about Quartet

### Who invested in Quartet?

Quartet's investors include F-Prime Capital, Oak HC/FT, Google Ventures, Polaris Partners and Centene Corporation, and 1 more on record.

### How much has Quartet raised?

Quartet has raised $100M across 2 rounds since 2017.

### When did Quartet last raise?

Quartet's most recent round was a Series D of $60M in Jun 2019.

### What was Quartet's biggest round?

Its most recent round, $60M in Jun 2019, is also its largest on record.

### Who backed Quartet first?

Quartet's first round on record, in Jan 2017, was backed by F-Prime Capital, Oak HC/FT and Polaris Partners/ GV.

### What stage is Quartet at?

Quartet's latest named round is a Series D, in Jun 2019.

### Where is Quartet based?

Quartet is based in the United States.

## Companies like Quartet

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)

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