# Crosslayer Labs funding: rounds and investors

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

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

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

# Who invested in *Crosslayer Labs*

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.

Cybersecurity

Raised 7 months ago

Funding summary Updated 26 Oct 2026

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

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

See who backed them

## The rounds

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

## Founders and team

From Crosslayer Labs's own website: 3 founders.

**Henry Birge-Lee** Founder & CEO

**Dr. Prateek Mittal** Founder & Chief Scientist

**Grace Cimaszewski** Founder & CTO

## 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=crosslayer-labs).

## Also claim to have backed them

These 2 firms list Crosslayer Labs 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.

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

[Founder Factor](https://millionrounds.com/fund/founder-factor) VC firm Per its own site

## Quick answers about Crosslayer Labs

### Who invested in Crosslayer Labs?

Crosslayer Labs's investors include Y Combinator and Rebel Fund.

### How much has Crosslayer Labs raised?

Crosslayer Labs has raised 1 round since 2026, none with a disclosed amount.

### When did Crosslayer Labs last raise?

Crosslayer Labs's most recent round was a Venture in Apr 2026.

### Who backed Crosslayer Labs first?

Crosslayer Labs's first round on record, in Apr 2026, was backed by Y Combinator and Rebel Fund.

### What stage is Crosslayer Labs at?

Crosslayer Labs's latest named round is a Venture, in Apr 2026.

### Where is Crosslayer Labs based?

Crosslayer Labs is based in the United States.

## Companies like Crosslayer Labs

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

[**FORT Robotics** $39M · Oct 2026](https://millionrounds.com/company/fort-robotics)[**Opsin** $21M · Oct 2026](https://millionrounds.com/company/opsin)[**Harmonic Security** $68M · Oct 2026](https://millionrounds.com/company/harmonic-security)[**Reach Security** $60M · Oct 2026](https://millionrounds.com/company/reach-security)[**Persona** $210M · Oct 2026](https://millionrounds.com/company/persona)[**Hilt** $4.7M · Oct 2026](https://millionrounds.com/company/hilt)

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