# [Stealth Cybersecurity Startup] funding: rounds and investors

> [Stealth Cybersecurity Startup] has raised $55M across 1 round since 2025. Investors include Greenoaks, Sequoia Capital and Index Ventures.

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

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

# Who invested in *[Stealth Cybersecurity Startup]*

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.

Cybersecurity

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Funding summary Updated 15 Nov 2026

**$55M** raised across 1 round since 2025, from 1 source

- **Latest round:** Series A, $55M Mar 2025
- **Led by:** Greenoaks
- **Investors:** 4 (1 led)

See who backed them

## The rounds

- **Mar 2025** Series A **$55M** [Greenoaks](https://millionrounds.com/fund/greenoaks) Lead [Sequoia Capital](https://millionrounds.com/fund/sequoia-capital) [Index Ventures](https://millionrounds.com/fund/index-ventures) Cyberstarts Reported by TechStartups

## Everyone who backed them

[Greenoaks](https://millionrounds.com/fund/greenoaks) VC firm **1** round, led 1

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

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

Cyberstarts no record of our own yet **1** round

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

## Quick answers about [Stealth Cybersecurity Startup]

### Who invested in [Stealth Cybersecurity Startup]?

[Stealth Cybersecurity Startup]'s investors include Greenoaks, Sequoia Capital, Index Ventures and Cyberstarts. Greenoaks led its latest round.

### How much has [Stealth Cybersecurity Startup] raised?

[Stealth Cybersecurity Startup] has raised $55M across 1 round since 2025.

### When did [Stealth Cybersecurity Startup] last raise?

[Stealth Cybersecurity Startup]'s most recent round was a Series A of $55M in Mar 2025, led by Greenoaks.

### What was [Stealth Cybersecurity Startup]'s biggest round?

Its most recent round, $55M in Mar 2025, is also its largest on record.

### Who backed [Stealth Cybersecurity Startup] first?

[Stealth Cybersecurity Startup]'s first round on record, in Mar 2025, was backed by Greenoaks, Sequoia Capital and Index Ventures and 1 others.

### What stage is [Stealth Cybersecurity Startup] at?

[Stealth Cybersecurity Startup]'s latest named round is a Series A, in Mar 2025.

### Who led [Stealth Cybersecurity Startup]'s rounds?

Greenoaks led the Series A in 2025.

## Companies like [Stealth Cybersecurity Startup]

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

[**Palma.ai** $1.8M · Sept 2026](https://millionrounds.com/company/palma-ai)[**FriskAI** $3.6M · Aug 2026](https://millionrounds.com/company/friskai)[**Oak** $60M · Jul 2026](https://millionrounds.com/company/oak)[**Hush Security** $30M · Jul 2026](https://millionrounds.com/company/hush-security)[**Beacon Security** $13M · Jul 2026](https://millionrounds.com/company/beacon-security)[**Muybridge** $16M · May 2026](https://millionrounds.com/company/muybridge)

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