# Unbound Security funding: rounds and investors

> Unbound Security has raised $4.0M across 1 round since 2025. Investors include Y Combinator, Liquid 2 Ventures and Pioneer Fund. Every round with its source.

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

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

# Who invested in *Unbound Security*

One round we have observed, with the 4 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

Funding summary Updated 26 Oct 2026

**$4.0M** raised across 1 round since 2025, from 1 source

- **Latest round:** Seed, $4.0M May 2025
- **Investors:** 4

See who backed them

## The rounds

- **May 2025** 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) [Race Capital](https://millionrounds.com/fund/race-capital) Source recorded

## 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

[Race Capital](https://millionrounds.com/fund/race-capital) VC firm **1** round

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

## Also claim to have backed them

This firm lists Unbound Security as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.

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

## Quick answers about Unbound Security

### Who invested in Unbound Security?

Unbound Security's investors include Y Combinator, Liquid 2 Ventures, Pioneer Fund and Race Capital.

### How much has Unbound Security raised?

Unbound Security has raised $4.0M across 1 round since 2025.

### When did Unbound Security last raise?

Unbound Security's most recent round was a Seed of $4.0M in May 2025.

### What was Unbound Security's biggest round?

Its most recent round, $4.0M in May 2025, is also its largest on record.

### Who backed Unbound Security first?

Unbound Security's first round on record, in May 2025, was backed by Y Combinator, Liquid 2 Ventures and Pioneer Fund and 1 others.

### What stage is Unbound Security at?

Unbound Security's latest named round is a Seed, in May 2025.

### Where is Unbound Security based?

Unbound Security is based in the United States.

## Companies like Unbound Security

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

[**SpaceX** $42B · Oct 2026](https://millionrounds.com/company/spacex)[**xPay** $1.5M · Oct 2026](https://millionrounds.com/company/xpay)[**Albert Invent** $20M · Oct 2026](https://millionrounds.com/company/albert-invent)[**FORT Robotics** $39M · Oct 2026](https://millionrounds.com/company/fort-robotics)[**Pika** $216M · Oct 2026](https://millionrounds.com/company/pika)[**Vertical Semiconductor** $84M · Oct 2026](https://millionrounds.com/company/vertical-semiconductor)

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