Portfolio Company · Operating Co.

Greynoise

DevOps & Security · Website

backed byRadian Capital

CurrentDevOps & Security

Greynoise

a portfolio company of

Radian Capital

Status on record: Current

PE Firm Index

Who owns Greynoise?

Greynoise is listed as a current portfolio company of Radian Capital on Radian Capital's own portfolio page.

From the company's website

The network edge is your blind spot. GreyNoise delivers real-time threat intelligence to detect active exploitation, uncover compromised devices, and investigate attacks as they happen.

Source: greynoise.io, read November 2026

Company Snapshot

Greynoise is a DevOps & Security company. Its owner on record, Radian Capital, is a growth equity firm. Radian Capital lists 34 companies in the index, 11 of them in DevOps & Security.

SectorDevOps & Security

Parent PE firmRadian Capital

Ownership statusCurrent

WebsiteVisit ↗

About the owner

Radian Capital

Strategy: growth equity
Companies in the index: 34

Radian Capital is a growth equity firm that invests in companies built by founders.

Read the Radian Capital profile

Questions about Greynoise

Who owns Greynoise?

Greynoise is listed as a current portfolio company of Radian Capital on Radian Capital's own portfolio page.

What sector is Greynoise in?

Greynoise is in DevOps & Security. Classified from the owner's portfolio label.

What else does Radian Capital own in DevOps & Security?

Radian Capital lists 10 other DevOps & Security companies in the index, including Autura, CyberFOX, EasyDMARC, Emailage and Evina.

What is Greynoise's website?

Greynoise's website is https://www.greynoise.io/.

Sources

Radian Capital
https://www.radiancapital.com/companies

This profile is based on publicly available information and may be incomplete or outdated. PE Firm Index is not affiliated with Greynoise and does not provide investment advice.

Other portfolio companies of Radian Capital

6 of 33 shown

Vertical Systems of Record

See the full Radian Capital portfolio.

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Ownership

Parent PE firm

Radian Capital

Status: Current

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