# Billow AI funding: rounds and investors

> Billow AI has raised across 1 round since 2026. Investors include Y Combinator and Rebel Fund. Every round with its source.

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

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

# Who invested in *Billow AI*

One round we have observed, with the 2 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.

AI

Raised 2 months ago

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Funding summary Updated 27 Oct 2026

**Undisclosed** raised across 1 round since 2026, from 1 source

- **Latest round:** Venture Sept 2026
- **Investors:** 2

See who backed them

## The rounds

- **Sept 2026** Venture **Amount undisclosed** [Y Combinator](https://millionrounds.com/fund/y-combinator) [Rebel Fund](https://millionrounds.com/fund/rebel-fund) Source recorded

## Everyone who backed them

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

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

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

## Quick answers about Billow AI

### Who invested in Billow AI?

Billow AI's investors include Y Combinator and Rebel Fund.

### How much has Billow AI raised?

Billow AI has raised 1 round since 2026, none with a disclosed amount.

### When did Billow AI last raise?

Billow AI's most recent round was a Venture in Sept 2026.

### Who backed Billow AI first?

Billow AI's first round on record, in Sept 2026, was backed by Y Combinator and Rebel Fund.

### What stage is Billow AI at?

Billow AI's latest named round is a Venture, in Sept 2026.

### Where is Billow AI based?

Billow AI is based in the United States.

## Companies like Billow AI

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

[**Simile** $600M · Oct 2026](https://millionrounds.com/company/simile)[**Ayar Labs** $904M · Oct 2026](https://millionrounds.com/company/ayar-labs)[**Bedrock Robotics** $870M · Oct 2026](https://millionrounds.com/company/bedrock-robotics)[**Nevis** $105M · Oct 2026](https://millionrounds.com/company/nevis)[**Overwatch** $15M · Oct 2026](https://millionrounds.com/company/overwatch)[**Caju AI** $3.0M · Oct 2026](https://millionrounds.com/company/caju-ai)

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