# 64x Bio funding: rounds and investors

> 64x Bio has raised $55M across 1 round since 2022. Investors include Y Combinator, SV Angel and First Round Capital. Every round with its source.

Source: https://millionrounds.com/company/64x-bio (Millionrounds; every figure on the page links to its filing or article)

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

# Who invested in *64x Bio*

One round we have observed, with the 6 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.

Pharma

Y Combinator: S18

Funding summary Updated 26 Oct 2026

**$55M** raised across 1 round since 2022, from 1 source

- **Latest round:** Series A, $55M Jan 2022
- **Investors:** 6

See who backed them

## The rounds

- **Jan 2022** Series A **$55M** [Y Combinator](https://millionrounds.com/fund/y-combinator) [SV Angel](https://millionrounds.com/fund/sv-angel) [First Round Capital](https://millionrounds.com/fund/first-round-capital) [BoxGroup](https://millionrounds.com/fund/boxgroup) [Fifty Years](https://millionrounds.com/fund/fifty-years-industries-llc) [Future Ventures](https://millionrounds.com/fund/future-ventures-4) Source recorded

## Everyone who backed them

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

[SV Angel](https://millionrounds.com/fund/sv-angel) VC firm **1** round

[First Round Capital](https://millionrounds.com/fund/first-round-capital) VC firm **1** round

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

[Fifty Years](https://millionrounds.com/fund/fifty-years-industries-llc) VC firm **1** round

[Future Ventures](https://millionrounds.com/fund/future-ventures-4) VC firm **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=64x-bio).

## Also claim to have backed them

These 2 firms list 64x Bio 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.

[Refactor Capital](https://millionrounds.com/fund/refactor-capital) VC firm Per its own site

[G Ventures](https://millionrounds.com/fund/g-ventures-2) VC firm Per its own site

## Quick answers about 64x Bio

### Who invested in 64x Bio?

64x Bio's investors include Y Combinator, SV Angel, First Round Capital, BoxGroup and Fifty Years, and 1 more on record.

### How much has 64x Bio raised?

64x Bio has raised $55M across 1 round since 2022.

### When did 64x Bio last raise?

64x Bio's most recent round was a Series A of $55M in Jan 2022.

### What was 64x Bio's biggest round?

Its most recent round, $55M in Jan 2022, is also its largest on record.

### Who backed 64x Bio first?

64x Bio's first round on record, in Jan 2022, was backed by Y Combinator, SV Angel and First Round Capital and 3 others.

### What stage is 64x Bio at?

64x Bio's latest named round is a Series A, in Jan 2022.

### Where is 64x Bio based?

64x Bio is based in the United States.

## Companies like 64x Bio

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

[**Matchpoint Therapeutics** $220M · Oct 2026](https://millionrounds.com/company/matchpoint-therapeutics)[**Rx Bandz** Oct 2026](https://millionrounds.com/company/rx-bandz)[**Hera Biotech** $1.8M · Sept 2026](https://millionrounds.com/company/hera-biotech)[**GevRx Nutraceuticals** $300K · Sept 2026](https://millionrounds.com/company/gevrx-nutraceuticals)[**RegCell** $81M · Sept 2026](https://millionrounds.com/company/regcell)[**ClearSight Therapeutics** $307K · Sept 2026](https://millionrounds.com/company/clearsight-therapeutics)

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