# Cylake funding: rounds and investors

> Cylake has raised $290M across 2 rounds since 2026. Investors include Greylock, Lightspeed Venture Partners and Redpoint. Every round with its source.

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

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

# Who invested in *Cylake*

2 rounds we have observed, with the 4 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

AI Big Data & Analytics Cybersecurity

Raised 2 months ago

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Funding summary Updated 15 Nov 2026

**$290M** raised across 2 rounds since 2026, from 2 sources

**$45M** Seed **$245M** Round

- **Latest round:** Round, $245M Sept 2026
- **Step-up i:** 5.4×
- **Investors:** 4 (1 led)

See who backed them

## The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2027

**$45M** Seed

**$245M** Round

- **First round:** Seed, $45M
- **Biggest round:** $245M
- **Between rounds:** 6 months

## The rounds

- **Sept 2026** Round **$245M** *3 new* *1 returning* [Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) [Redpoint](https://millionrounds.com/fund/redpoint) [Greylock](https://millionrounds.com/fund/greylock-partners) [In-Q-Tel](https://millionrounds.com/fund/iqt) Source recorded
- **Mar 2026** Seed **$45M** *1 new* [Greylock](https://millionrounds.com/fund/greylock-partners) Lead Reported by Ventureburn

## Founders and team

From Cylake's own website: 3 founders, 5 on the team.

**Nir Zuk** Founder and CEO

**Udi Shamir** Title Co-founder and Chief Architect

**Wilson Xu** Title Co-founder and Chief Development Officer

- **Jesse Ralston** Title Chief Technology Officer
- **Jony Hartono** Title Chief Financial Officer
- **Maya Marcus** Title Chief People Officer
- **René Bonvanie** Title Chief Marketing Officer
- **Nick Campagna** Title Head of Product Management

## Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

**Seed** 2026 **Round** 2026 [Greylock](https://millionrounds.com/fund/greylock-partners) L [Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) [Redpoint](https://millionrounds.com/fund/redpoint) [In-Q-Tel](https://millionrounds.com/fund/iqt)

## Everyone who backed them

[Greylock](https://millionrounds.com/fund/greylock-partners) VC firm **2** rounds, led 1

[Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) VC firm **1** round

[Redpoint](https://millionrounds.com/fund/redpoint) VC firm **1** round

[In-Q-Tel](https://millionrounds.com/fund/iqt) Accelerator **1** round

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

## Quick answers about Cylake

### Who invested in Cylake?

Cylake's investors include Greylock, Lightspeed Venture Partners, Redpoint and In-Q-Tel.

### How much has Cylake raised?

Cylake has raised $290M across 2 rounds since 2026.

### When did Cylake last raise?

Cylake's most recent round was an Undisclosed round of $245M in Sept 2026.

### What was Cylake's biggest round?

Its most recent round, $245M in Sept 2026, is also its largest on record.

### Who backed Cylake first?

Cylake's first round on record, in Mar 2026, was backed by Greylock.

### What stage is Cylake at?

Cylake's latest named round is an Undisclosed round, in Sept 2026.

### Where is Cylake based?

Cylake is based in the United States.

### Who led Cylake's rounds?

Greylock led the Seed in 2026.

## Companies like Cylake

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

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