# Epsilon3 funding: rounds and investors

> Epsilon3 has raised $15M across 1 round since 2022. Investors include Y Combinator, Pioneer Fund and Lux Capital. Every round with its source.

Source: https://millionrounds.com/company/epsilon3 (Millionrounds; every figure on the page links to its filing or article)

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

# Who invested in *Epsilon3*

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.

B2B

Y Combinator: S21

Funding summary Updated 26 Oct 2026

**$15M** raised across 1 round since 2022, from 1 source

- **Latest round:** Series A, $15M Jun 2022
- **Investors:** 5

See who backed them

## The rounds

- **Jun 2022** Series A **$15M** [Y Combinator](https://millionrounds.com/fund/y-combinator) [Pioneer Fund](https://millionrounds.com/fund/pioneer-fund-2) [Lux Capital](https://millionrounds.com/fund/lux-capital) [Village Global](https://millionrounds.com/fund/village-global-2) [MaC Venture Capital](https://millionrounds.com/fund/mac-venture-capital) Source recorded SEC filing: $15M sold, first sale May 2022

## Founders and team

From the SEC filings it signed: 2 on the team.

- **Aaron Sullivan** Executive Officer i
- **Laura Crabtree** Executive Officer, Director i

On the board, as filed i *Max Mednik*

## Everyone who backed them

[Y Combinator](https://millionrounds.com/fund/y-combinator) Accelerator **1** round

[Pioneer Fund](https://millionrounds.com/fund/pioneer-fund-2) Private equity **1** round

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

[Village Global](https://millionrounds.com/fund/village-global-2) VC firm **1** round

[MaC Venture Capital](https://millionrounds.com/fund/mac-venture-capital) VC firm **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=epsilon3).

## Also claim to have backed them

These 5 firms list Epsilon3 as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.

[Broom Ventures](https://millionrounds.com/fund/broom-ventures) VC firm Per its own site

[Stage Venture Partners](https://millionrounds.com/fund/stage-venture-partners) VC firm Per its own site

[Ravelin](https://millionrounds.com/fund/ravelin) VC firm Per its own site

[White Hill Capital](https://millionrounds.com/fund/white-hill-capital) VC firm Per its own site

[Kohala Ventures](https://millionrounds.com/fund/kohala-ventures) VC firm Per its own site

## Quick answers about Epsilon3

### Who invested in Epsilon3?

Epsilon3's investors include Y Combinator, Pioneer Fund, Lux Capital, Village Global and MaC Venture Capital.

### How much has Epsilon3 raised?

Epsilon3 has raised $15M across 1 round since 2022.

### When did Epsilon3 last raise?

Epsilon3's most recent round was a Series A of $15M in Jun 2022.

### What was Epsilon3's biggest round?

Its most recent round, $15M in Jun 2022, is also its largest on record.

### Who backed Epsilon3 first?

Epsilon3's first round on record, in Jun 2022, was backed by Y Combinator, Pioneer Fund and Lux Capital and 2 others.

### What stage is Epsilon3 at?

Epsilon3's latest named round is a Series A, in Jun 2022.

### Where is Epsilon3 based?

Epsilon3 is based in the United States.

## Companies like Epsilon3

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

[**MURAL** $67M · Oct 2026](https://millionrounds.com/company/mural)[**Different** $48M · Oct 2026](https://millionrounds.com/company/different)[**Dapta** $6.0M · Oct 2026](https://millionrounds.com/company/dapta)[**Amani Therapeutics** $60M · Oct 2026](https://millionrounds.com/company/amani-therapeutics)[**Relay** $207M · Oct 2026](https://millionrounds.com/company/relay)[**Bash Capital1** $5.7M · Sept 2026](https://millionrounds.com/company/bash-capital1)

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