# Poseidon Innovation funding: rounds and investors

> Poseidon Innovation has raised $65M across 1 round since 2018. Investors include Deerfield. Every round with its source.

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

[Venture startup](https://millionrounds.com/companies)

# Who invested in *Poseidon Innovation*

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

**$65M** raised across 1 round since 2018, from 1 source

- **Latest round:** Venture, $65M Sept 2018
- **Investors:** 1

See who backed them

## The rounds

- **Sept 2018** Venture **$65M** [Deerfield](https://millionrounds.com/fund/deerfield) Source recorded

## Everyone who backed them

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

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

## Quick answers about Poseidon Innovation

### Who invested in Poseidon Innovation?

Poseidon Innovation's investors include Deerfield.

### How much has Poseidon Innovation raised?

Poseidon Innovation has raised $65M across 1 round since 2018.

### When did Poseidon Innovation last raise?

Poseidon Innovation's most recent round was a Venture of $65M in Sept 2018.

### What was Poseidon Innovation's biggest round?

Its most recent round, $65M in Sept 2018, is also its largest on record.

### Who backed Poseidon Innovation first?

Poseidon Innovation's first round on record, in Sept 2018, was backed by Deerfield.

### What stage is Poseidon Innovation at?

Poseidon Innovation's latest named round is a Venture, in Sept 2018.

## Companies like Poseidon Innovation

In the same sector, and raised in the last eighteen months.

[**Cloverleaf Bio** $33M · Sept 2026](https://millionrounds.com/company/cloverleaf-bio)[**Cheiron** $8.0M · Jul 2026](https://millionrounds.com/company/cheiron)[**Tavo Biotherapeutics** $17M · Jun 2026](https://millionrounds.com/company/tavo-biotherapeutics)[**Countable Labs** $26M · May 2026](https://millionrounds.com/company/countable-labs)[**Oricell Therapeutics** $180M · Apr 2026](https://millionrounds.com/company/oricell-therapeutics)[**Immunofoco** $29M · Mar 2026](https://millionrounds.com/company/immunofoco)

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