# Volastra Therapeutics funding: rounds and investors

> Volastra Therapeutics has raised $30M across 1 round since 2025. Investors include B Capital, Polaris Partners and ARCH Venture Partners.

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

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

# Who invested in *Volastra Therapeutics*

One round we have observed, with the 5 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

**$30M** raised across 1 round since 2025, from 1 source

- **Latest round:** Series A, $30M Sept 2025
- **Investors:** 5

See who backed them

## The rounds

- **Sept 2025** Series A **$30M** [B Capital](https://millionrounds.com/fund/b-capital) [Polaris Partners](https://millionrounds.com/fund/polaris-partners) [ARCH Venture Partners](https://millionrounds.com/fund/arch-venture-partners) [Eli Lilly](https://millionrounds.com/fund/eli-lilly) [Catalio Capital Management](https://millionrounds.com/fund/catalio-capital-management) Source recorded SEC filing: $30M sold, first sale Sept 2025

## Everyone who backed them

[B Capital](https://millionrounds.com/fund/b-capital) VC firm **1** round

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

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

[Eli Lilly](https://millionrounds.com/fund/eli-lilly) Corporate VC **1** round

[Catalio Capital Management](https://millionrounds.com/fund/catalio-capital-management) VC firm **1** round

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

## Quick answers about Volastra Therapeutics

### Who invested in Volastra Therapeutics?

Volastra Therapeutics's investors include B Capital, Polaris Partners, ARCH Venture Partners, Eli Lilly and Catalio Capital Management.

### How much has Volastra Therapeutics raised?

Volastra Therapeutics has raised $30M across 1 round since 2025.

### When did Volastra Therapeutics last raise?

Volastra Therapeutics's most recent round was a Series A of $30M in Sept 2025.

### What was Volastra Therapeutics's biggest round?

Its most recent round, $30M in Sept 2025, is also its largest on record.

### Who backed Volastra Therapeutics first?

Volastra Therapeutics's first round on record, in Sept 2025, was backed by B Capital, Polaris Partners and ARCH Venture Partners and 2 others.

### What stage is Volastra Therapeutics at?

Volastra Therapeutics's latest named round is a Series A, in Sept 2025.

### Where is Volastra Therapeutics based?

Volastra Therapeutics is based in the United States.

## Companies like Volastra Therapeutics

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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