# Stairwell funding: rounds and investors

> Stairwell has raised $45M across 1 round since 2022. Investors include Sequoia Capital, Lux Capital and Gradient. Every round with its source.

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

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

# Who invested in *Stairwell*

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

Funding summary Updated 26 Oct 2026

**$45M** raised across 1 round since 2022, from 1 source

- **Latest round:** Series B, $45M Oct 2022
- **Investors:** 4

See who backed them

## The rounds

- **Oct 2022** Series B **$45M** [Sequoia Capital](https://millionrounds.com/fund/sequoia-capital) [Lux Capital](https://millionrounds.com/fund/lux-capital) [Gradient](https://millionrounds.com/fund/gradient-ventures) [S32](https://millionrounds.com/fund/s32) Source recorded

## Founders and team

From Stairwell's own website: 1 founder, 2 on the team.

**Emmy Linder** Founder & CTO

- **Julian Matossian** Chief Of Staff
- **Mike Wiacek** Head Of Product

## Everyone who backed them

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

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

[Gradient](https://millionrounds.com/fund/gradient-ventures) VC firm **1** round

[S32](https://millionrounds.com/fund/s32) VC firm **1** round

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

## Quick answers about Stairwell

### Who invested in Stairwell?

Stairwell's investors include Sequoia Capital, Lux Capital, Gradient and S32.

### How much has Stairwell raised?

Stairwell has raised $45M across 1 round since 2022.

### When did Stairwell last raise?

Stairwell's most recent round was a Series B of $45M in Oct 2022.

### What was Stairwell's biggest round?

Its most recent round, $45M in Oct 2022, is also its largest on record.

### Who backed Stairwell first?

Stairwell's first round on record, in Oct 2022, was backed by Sequoia Capital, Lux Capital and Gradient and 1 others.

### What stage is Stairwell at?

Stairwell's latest named round is a Series B, in Oct 2022.

### Where is Stairwell based?

Stairwell is based in the United States.

## Companies like Stairwell

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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