# Proniras funding: rounds and investors

> Proniras has raised $4.7M across 1 round since 2024. Investors include ARCH Venture Partners. Every round with its source.

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

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

# Who invested in *Proniras*

One round we have observed, with the one investor 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

**$4.7M** raised across 1 round since 2024, from 1 source

- **Latest round:** Series B, $4.7M Feb 2024
- **Investors:** 1

See who backed them

## The rounds

- **Feb 2024** Series B **$4.7M** [ARCH Venture Partners](https://millionrounds.com/fund/arch-venture-partners) Source recorded SEC filing: $4.6M sold, first sale Dec 2023

## Everyone who backed them

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

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

## Quick answers about Proniras

### Who invested in Proniras?

Proniras's investors include ARCH Venture Partners.

### How much has Proniras raised?

Proniras has raised $4.7M across 1 round since 2024.

### When did Proniras last raise?

Proniras's most recent round was a Series B of $4.7M in Feb 2024.

### What was Proniras's biggest round?

Its most recent round, $4.7M in Feb 2024, is also its largest on record.

### Who backed Proniras first?

Proniras's first round on record, in Feb 2024, was backed by ARCH Venture Partners.

### What stage is Proniras at?

Proniras's latest named round is a Series B, in Feb 2024.

### Where is Proniras based?

Proniras is based in the United States.

## Companies like Proniras

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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