# IronNet Security funding: rounds and investors

> IronNet Security has raised $78M across 1 round since 2018. Investors include Kleiner Perkins Caufield & Byers and C5 Capital/ ForgePoint.

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

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

# Who invested in *IronNet Security*

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

Funding summary Updated 26 Oct 2026

**$78M** raised across 1 round since 2018, from 1 source

- **Latest round:** Series B, $78M May 2018
- **Investors:** 2

See who backed them

## The rounds

- **May 2018** Series B **$78M** [Kleiner Perkins Caufield & Byers](https://millionrounds.com/fund/kleiner-perkins-caufield-and-byers) [C5 Capital/ ForgePoint](https://millionrounds.com/fund/c5-capital-forgepoint) Reported by Reuters

## Everyone who backed them

[Kleiner Perkins Caufield & Byers](https://millionrounds.com/fund/kleiner-perkins-caufield-and-byers) VC firm **1** round

[C5 Capital/ ForgePoint](https://millionrounds.com/fund/c5-capital-forgepoint) Growth equity **1** round

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

## Quick answers about IronNet Security

### Who invested in IronNet Security?

IronNet Security's investors include Kleiner Perkins Caufield & Byers and C5 Capital/ ForgePoint.

### How much has IronNet Security raised?

IronNet Security has raised $78M across 1 round since 2018.

### When did IronNet Security last raise?

IronNet Security's most recent round was a Series B of $78M in May 2018.

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

Its most recent round, $78M in May 2018, is also its largest on record.

### Who backed IronNet Security first?

IronNet Security's first round on record, in May 2018, was backed by Kleiner Perkins Caufield & Byers and C5 Capital/ ForgePoint.

### What stage is IronNet Security at?

IronNet Security's latest named round is a Series B, in May 2018.

### Where is IronNet Security based?

IronNet Security is based in the United States.

## Companies like IronNet Security

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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