# Alga Biosciences funding: rounds and investors

> Alga Biosciences has raised $4.0M across 1 round since 2023. Investors include Y Combinator, Liquid 2 Ventures and Pioneer Fund. Every round with its source.

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

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

# Who invested in *Alga Biosciences*

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.

Biotech

Y Combinator: W22

Funding summary Updated 26 Oct 2026

**$4.0M** raised across 1 round since 2023, from 1 source

- **Latest round:** Seed, $4.0M Apr 2023
- **Investors:** 5

See who backed them

## The rounds

- **Apr 2023** Seed **$4.0M** [Y Combinator](https://millionrounds.com/fund/y-combinator) [Liquid 2 Ventures](https://millionrounds.com/fund/liquid-2-ventures) [Pioneer Fund](https://millionrounds.com/fund/pioneer-fund-2) [Collaborative Fund](https://millionrounds.com/fund/collaborative-fund) [Day One Ventures](https://millionrounds.com/fund/day-one-ventures) Source recorded

## Founders and team

From Alga Biosciences's own website: 2 founders.

**Alex Brown** Co-founder and CEO

**Daria Balatsky** Co-founder and CTO

## Everyone who backed them

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

[Liquid 2 Ventures](https://millionrounds.com/fund/liquid-2-ventures) VC firm **1** round

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

[Collaborative Fund](https://millionrounds.com/fund/collaborative-fund) VC firm **1** round

[Day One Ventures](https://millionrounds.com/fund/day-one-ventures) VC firm **1** round

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

## Also claim to have backed them

These 3 firms list Alga Biosciences 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.

[Cool Climate Collective](https://millionrounds.com/fund/cool-climate-collective) Angel network Per its own site

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

[Very Serious Ventures](https://millionrounds.com/fund/very-serious-ventures) Angel network Per its own site

## Quick answers about Alga Biosciences

### Who invested in Alga Biosciences?

Alga Biosciences's investors include Y Combinator, Liquid 2 Ventures, Pioneer Fund, Collaborative Fund and Day One Ventures.

### How much has Alga Biosciences raised?

Alga Biosciences has raised $4.0M across 1 round since 2023.

### When did Alga Biosciences last raise?

Alga Biosciences's most recent round was a Seed of $4.0M in Apr 2023.

### What was Alga Biosciences's biggest round?

Its most recent round, $4.0M in Apr 2023, is also its largest on record.

### Who backed Alga Biosciences first?

Alga Biosciences's first round on record, in Apr 2023, was backed by Y Combinator, Liquid 2 Ventures and Pioneer Fund and 2 others.

### What stage is Alga Biosciences at?

Alga Biosciences's latest named round is a Seed, in Apr 2023.

### Where is Alga Biosciences based?

Alga Biosciences is based in the United States.

## Companies like Alga Biosciences

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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