# Blue Onion Labs funding: rounds and investors

> Blue Onion Labs has raised $10M across 1 round since 2025. Investors include Y Combinator, Halogen Ventures and Surface Ventures. Every round with its source.

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

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

# Who invested in *Blue Onion Labs*

One round we have observed, with the 3 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.

Professional Services

Y Combinator: S20

Funding summary Updated 26 Oct 2026

**$10M** raised across 1 round since 2025, from 1 source

- **Latest round:** Series A, $10M Apr 2025
- **Investors:** 3

See who backed them

## The rounds

- **Apr 2025** Series A **$10M** [Y Combinator](https://millionrounds.com/fund/y-combinator) [Halogen Ventures](https://millionrounds.com/fund/halogen-ventures) [Surface Ventures](https://millionrounds.com/fund/surface-ventures) Source recorded

## Everyone who backed them

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

[Halogen Ventures](https://millionrounds.com/fund/halogen-ventures) VC firm **1** round

[Surface Ventures](https://millionrounds.com/fund/surface-ventures) VC firm **1** round

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

## Quick answers about Blue Onion Labs

### Who invested in Blue Onion Labs?

Blue Onion Labs's investors include Y Combinator, Halogen Ventures and Surface Ventures.

### How much has Blue Onion Labs raised?

Blue Onion Labs has raised $10M across 1 round since 2025.

### When did Blue Onion Labs last raise?

Blue Onion Labs's most recent round was a Series A of $10M in Apr 2025.

### What was Blue Onion Labs's biggest round?

Its most recent round, $10M in Apr 2025, is also its largest on record.

### Who backed Blue Onion Labs first?

Blue Onion Labs's first round on record, in Apr 2025, was backed by Y Combinator, Halogen Ventures and Surface Ventures.

### What stage is Blue Onion Labs at?

Blue Onion Labs's latest named round is a Series A, in Apr 2025.

### Where is Blue Onion Labs based?

Blue Onion Labs is based in the United States.

## Companies like Blue Onion Labs

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

[**Gradient** $24M · Oct 2026](https://millionrounds.com/company/gradient)[**Qualitate** $32M · Oct 2026](https://millionrounds.com/company/qualitate)[**Platform Accounting Group** $355M · Oct 2026](https://millionrounds.com/company/platform-accounting-group)[**Remitian** $27M · Oct 2026](https://millionrounds.com/company/remitian)[**Fortastra** $38M · Oct 2026](https://millionrounds.com/company/fortastra)[**Confido** $82M · Sept 2026](https://millionrounds.com/company/confido)

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