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GreyNoise Intelligence

GreyNoise Intelligence

Private
Washington D.C.Cybersecurityhttps://www.greynoise.io/

Last Round

Series A

Jun 15, 2022

Total Funding Raised

$20.4M

Company Overview

GreyNoise Intelligence is a cybersecurity company that provides threat intelligence by analyzing internet-wide scan and attack traffic to help security teams distinguish between benign internet noise and targeted malicious threats.

Sector

Cybersecurity

Verticals

Threat Intelligence, Cloud Security, Incident Response, Network Security, Vulnerability Management

Business Model

B2B

Customer Profile

Subscription SaaS, Freemium, Data as a Service

AI Layer

Infrastructure

Keywords

threat intelligenceIP reputationsecurity operationsSOCinternet background noisealert fatigueincident responsethreat huntingcybersecurity telemetrythreat intel feedsecurity APIfalse positive reductionModel Context ProtocolMCPsecurity automationai agent securitycyber hygiene

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Caplight Momentum Score

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GreyNoise Intelligence Comparables

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GreyNoise Intelligence comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
Censys
77%
Criminal IP
76%
Team Cymru
76%

GreyNoise Intelligence Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
Series AJun 15, 2022
StrategicJun 29, 2021
SeedAug 4, 2020
SeedMar 27, 2019

GreyNoise Intelligence Investors

Notable investors and investment history

GreyNoise Intelligence investors
InvestorRounds
Paladin Capital GroupSeries A, Seed
Radian CapitalSeries A
CRVSeries A, Seed
In-Q-TelStrategic
StoneMill VenturesSeries A, Seed
Inner Loop CapitalSeries A, Seed

Market signals

Structured signals derived from secondary market and firmographic data.

  • Apr 29, 2026

    Launched Project Swarm, a new collective research initiative.

  • Apr 7, 2026

    Launched Command and Control (C2) Detection module for network traffic analysis.

Recent news

Latest coverage and updates

  • hiresSep 28, 2026

    GreyNoise, Inc. hired Mark Mager as head of adversary engagement on Aug 1st '26.

  • hiresSep 25, 2026

    GreyNoise, Inc. hired Joe Lampert as director of national security solutions on Sep 23rd '26.

  • increases_headcount_bySep 23, 2026

    GreyNoise, Inc. increased headcount by 4 on Sep 23rd '26.

  • hiresSep 23, 2026

    GreyNoise, Inc. hires Thompson as Senior Vice President of Adversary Operations.

GreyNoise Intelligence Filings

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GreyNoise Intelligence filings preview — column headings only; records require access
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Frequently Asked Questions

Common questions about GreyNoise Intelligence's valuation, stock price, and market status.

Is GreyNoise Intelligence a public or private company?

GreyNoise Intelligence is a private company.

What is the current stock price of GreyNoise Intelligence?

GreyNoise Intelligence is a private company with no public stock price. No recent secondary market data is available.

How much is GreyNoise Intelligence worth (valuation)?

Valuation information for GreyNoise Intelligence is not publicly available.

Can I buy GreyNoise Intelligence stock?

GreyNoise Intelligence shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors. Visit https://www.caplight.com to learn more.

When was GreyNoise Intelligence's last funding round?

GreyNoise Intelligence's most recent funding round was Series A on June 15, 2022.

Who are the main investors in GreyNoise Intelligence?

Key investors in GreyNoise Intelligence include Radian Capital, CRV, In-Q-Tel, StoneMill Ventures, Inner Loop Capital.

Will GreyNoise Intelligence IPO soon?

No public IPO plans have been announced for GreyNoise Intelligence.

How can I track GreyNoise Intelligence secondary market activity?

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Firmographic Details

HeadquartersWashington D.C.
Employee Range54
Year Founded2017
Last FundingJun 15, 2022

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