Insights

Enterprise Validation Horizon3.ai already serves high-security clients including NSA, CISA, Fortune 100 and major healthcare providers with its NodeZero proactive security platform that autonomously tests defenses and prioritizes exploitable paths. This validates its suitability for large enterprises and regulated sectors, presenting strong cross-sell potential to SOC teams seeking automated, continuous resilience and auditable risk proof.

Strategic Partnerships Recent integrations and partnerships with Brinqa, World Wide Technology, and Acora, plus ecosystem logos such as CrowdStrike and Okta, create ready-made co-sell and integration opportunities to embed NodeZero into existing security workflows and remediation pipelines. Leverage these channels in targeted regions, especially Europe, supported by the new Field CTO for EMEA.

AI Threat Leadership Horizon3.ai positions itself at the forefront of AI-enabled defense, offering autonomous testing that runs at machine speed to continuously prove resilience against AI-powered attacks. This resonates with SecOps teams seeking automated validation, enabling a compelling upsell to organizations pursuing mature security automation.

Strong Growth Recognitions as Fast Company World’s Most Innovative Companies in 2026, the top cybersecurity firm on Inc. 5000 in 2025, and a top finish on Deloitte’s Technology Fast 500 signal strong market validation and deal velocity, supporting premium pricing and large-scale enterprise opportunities.

Global Expansion With a dedicated Field CTO for EMEA and participation in Infosecurity Europe 2026, Horizon3.ai is positioned to expand in Europe and other regulated markets. This enables Europe-focused vertical strategies in healthcare, government, and critical infrastructure, aided by regional partners and integration with local security ecosystems.

Horizon3.ai Tech Stack

Horizon3.ai uses 8 technology products and services including Pendo, Amazon S3, RSS, and more. Explore Horizon3.ai's tech stack below.

  • Pendo
    Analytics
  • Amazon S3
    Content Delivery Network
  • RSS
    Content Management System
  • CrowdStrike
    Endpoint Protection
  • Okta
    Identity Verification
  • Google Sheets
    Office Suites
  • MyWebsite
    Page Builders
  • Elasticsearch
    Search Engines

Media & News

Horizon3.ai's Email Address Formats

Horizon3.ai uses at least 1 format(s):
Horizon3.ai Email FormatsExamplePercentage
First.Last@horizon3.aiJohn.Doe@horizon3.ai
73%
FLast@horizon3.aiJDoe@horizon3.ai
14%
First@horizon3.aiJohn@horizon3.ai
8%
Last@horizon3.aiDoe@horizon3.ai
5%

Frequently Asked Questions

Where is Horizon3.ai's headquarters located?

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Horizon3.ai's main headquarters is located at San Francisco, California 94118 United States. The company has employees across 5 continents, including North AmericaEuropeAsia.

What is Horizon3.ai's official website and social media links?

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Horizon3.ai's official website is horizon3.ai and has social profiles on LinkedInCrunchbase.

What is Horizon3.ai's NAICS code?

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Horizon3.ai's NAICS code is 5415 - Computer Systems Design and Related Services.

How many employees does Horizon3.ai have currently?

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As of June 2026, Horizon3.ai has approximately 435 employees across 5 continents, including North AmericaEuropeAsia. Key team members include Chief Marketing Officer: A. B.Chief Revenue Officer (cro): M. H.Chief Financial Officer: H. G.. Explore Horizon3.ai's employee directory with LeadIQ.

What industry does Horizon3.ai belong to?

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Horizon3.ai operates in the Computer and Network Security industry.

What technology does Horizon3.ai use?

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Horizon3.ai's tech stack includes PendoAmazon S3RSSCrowdStrikeOktaGoogle SheetsMyWebsiteElasticsearch.

What is Horizon3.ai's email format?

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Horizon3.ai's email format typically follows the pattern of First.Last@horizon3.ai. Find more Horizon3.ai email formats with LeadIQ.

How much funding has Horizon3.ai raised to date?

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As of June 2026, Horizon3.ai has raised $100M in funding. The last funding round occurred on May 22, 2025 for $100M.

When was Horizon3.ai founded?

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Horizon3.ai was founded in 2019.

Horizon3.ai

Computer and Network SecurityCalifornia, United States201-500 Employees

Horizon3.ai is a San Francisco–based cybersecurity company focused on offensive security and resilience against AI-powered threats. Its NodeZero platform automates defenses testing at machine speed, identifies exploitable attack paths, verifies fixes, and operates in a continuous loop to demonstrate real resilience. The product was built by a team of U.S. cyber veterans and has been honed through hundreds of thousands of production-safe tests, more than traditional manual pentests. Its customers include government agencies such as the NSA and CISA, as well as Fortune 100 firms and major healthcare providers. Horizon3.ai has received industry recognition, including Fast Company's World's Most Innovative Companies in 2026 and top rankings on the Deloitte Technology Fast 500 (2025) and the Inc. 5000 (2025). In June 2026, the company announced an integration with Brinqa to combine attack-path insights with remediation orchestration capabilities.

Section iconCompany Overview

Headquarters
San Francisco, California 94118 United States
NAICS Code
5415 - Computer Systems Design and Related Services
Founded
2019
Employees
201-500

Section iconFunding & Financials

  • $100M

    Horizon3.ai has raised a total of $100M of funding over 5 rounds. Their latest funding round was raised on May 22, 2025 in the amount of $100M.

  • $1B$10B

    Horizon3.ai's revenue is estimated to be in the range of $1B$10B

Section iconFunding & Financials

  • $100M

    Horizon3.ai has raised a total of $100M of funding over 5 rounds. Their latest funding round was raised on May 22, 2025 in the amount of $100M.

  • $1B$10B

    Horizon3.ai's revenue is estimated to be in the range of $1B$10B

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