# Bitterroot Bio funding: rounds and investors

> Bitterroot Bio has raised $145M across 1 round since 2023. Investors include Google Ventures, ARCH Venture Partners and Deerfield. Every round with its source.

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

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

# Who invested in *Bitterroot Bio*

One round we have observed, with the 4 investors named in it. 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

**$145M** raised across 1 round since 2023, from 1 source

- **Latest round:** Series A, $145M Jun 2023
- **Investors:** 4

See who backed them

## The rounds

- **Jun 2023** Series A **$145M** [Google Ventures](https://millionrounds.com/fund/gv) [ARCH Venture Partners](https://millionrounds.com/fund/arch-venture-partners) [Deerfield](https://millionrounds.com/fund/deerfield) [Alexandria Venture Investments](https://millionrounds.com/fund/alexandria-venture-investments) Source recorded

## Everyone who backed them

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

[ARCH Venture Partners](https://millionrounds.com/fund/arch-venture-partners) VC firm **1** round

[Deerfield](https://millionrounds.com/fund/deerfield) VC firm **1** round

[Alexandria Venture Investments](https://millionrounds.com/fund/alexandria-venture-investments) VC firm **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=bitterroot-bio).

## Quick answers about Bitterroot Bio

### Who invested in Bitterroot Bio?

Bitterroot Bio's investors include Google Ventures, ARCH Venture Partners, Deerfield and Alexandria Venture Investments.

### How much has Bitterroot Bio raised?

Bitterroot Bio has raised $145M across 1 round since 2023.

### When did Bitterroot Bio last raise?

Bitterroot Bio's most recent round was a Series A of $145M in Jun 2023.

### What was Bitterroot Bio's biggest round?

Its most recent round, $145M in Jun 2023, is also its largest on record.

### Who backed Bitterroot Bio first?

Bitterroot Bio's first round on record, in Jun 2023, was backed by Google Ventures, ARCH Venture Partners and Deerfield and 1 others.

### What stage is Bitterroot Bio at?

Bitterroot Bio's latest named round is a Series A, in Jun 2023.

### Where is Bitterroot Bio based?

Bitterroot Bio is based in the United States.

## Companies like Bitterroot Bio

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)

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