# Protein Evolution funding: rounds and investors

> Protein Evolution has raised $23M across 2 rounds since 2022. Investors include Eldridge, US Department of Energy and EDBI. Every round with its source.

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

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

# Who invested in *Protein Evolution*

2 rounds we have observed, with the 3 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

Raised 2 months ago

Funding summary Updated 26 Oct 2026

**$23M** raised across 2 rounds since 2022, from 2 sources

**$20M** Seed **$3.0M** Grant

- **Latest round:** Grant, $3.0M Sept 2026
- **Biggest round:** $20M Seed · Oct 2022
- **Investors:** 3

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.

2023 2024 2025 2026

**$20M** Seed

**$3.0M** Grant

- **First round:** Seed, $20M
- **Biggest round:** $20M
- **Between rounds:** 3.9 years

## The rounds

- **Sept 2026** Grant **$3.0M** *1 new* *1 returning* [US Department of Energy](https://millionrounds.com/fund/u-s-department-of-energy) [Eldridge](https://millionrounds.com/fund/eldridge) Source recorded
- **Oct 2022** Seed **$20M** *2 new* [EDBI](https://millionrounds.com/fund/edbi) [Eldridge](https://millionrounds.com/fund/eldridge) Source recorded

## 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.

**Seed** 2022 **Grant** 2026 [Eldridge](https://millionrounds.com/fund/eldridge) [US Department of Energy](https://millionrounds.com/fund/u-s-department-of-energy) [EDBI](https://millionrounds.com/fund/edbi)

## Everyone who backed them

[Eldridge](https://millionrounds.com/fund/eldridge) Private equity **2** rounds

[US Department of Energy](https://millionrounds.com/fund/u-s-department-of-energy) Government **1** round

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

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

## Quick answers about Protein Evolution

### Who invested in Protein Evolution?

Protein Evolution's investors include Eldridge, US Department of Energy and EDBI.

### How much has Protein Evolution raised?

Protein Evolution has raised $23M across 2 rounds since 2022.

### When did Protein Evolution last raise?

Protein Evolution's most recent round was a Grant of $3.0M in Sept 2026.

### What was Protein Evolution's biggest round?

Protein Evolution's largest round on record is $20M (Seed), in Oct 2022.

### Who backed Protein Evolution first?

Protein Evolution's first round on record, in Oct 2022, was backed by EDBI and Eldridge.

### What stage is Protein Evolution at?

Protein Evolution's latest named round is a Grant, in Sept 2026.

### Where is Protein Evolution based?

Protein Evolution is based in the United States.

## Companies like Protein Evolution

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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