The NodeZero® platform empowers your organization to continuously find, fix, and verify your exploitable attack surface. Reduce your security risk by autonomously finding weaknesses in your network, knowing how to prioritize and fix them, and immediately verifying that your fixes work. NodeZero delivers production-safe autonomous pentests and other key assessment operations that scale across your largest internal, external, cloud, and hybrid cloud environments. No required…
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AI-Native Proactive Security
Full company description
The NodeZero® platform empowers your organization to continuously find, fix, and verify your exploitable attack surface. Reduce your security risk by autonomously finding weaknesses in your network, knowing how to prioritize and fix them, and immediately verifying that your fixes work. NodeZero delivers production-safe autonomous pentests and other key assessment operations that scale across your largest internal, external, cloud, and hybrid cloud environments. No required agents, no code to write, and no consultants to hire.
We are a fusion of former U.S. Special Operations cyber operators, startup engineers, and formerly frustrated cybersecurity practitioners. We're committed to helping solve our common security problems: ineffective security tools, false positives resulting in alert fatigue, blind spots, "checkbox” security culture, cybersecurity skills shortage, and the long lead time and expense of hiring outside consultants.
LinkedIn followers
27,722
People associated on LinkedIn
423
Reported office locations
San Francisco, CA 94118, US
Durham, NC 27701, US
Business categories
Cyber Security
Artificial Intelligence
Software
Enterprise Software
Network Security
Artificial Intelligence (AI)
Machine Learning
Other recorded names
Horizon3
Horizon3 AI
Horizon3.ai
Specialties
cybersecurity
penetrationtesting
AI
purpleteams
infosec
machinelearning
datasecurity
autonomouspentesting
attack surface management
red teams
offensive security
pentesting
security validation
security verification
and exploitable vulnerabilities
Profile identifies a recruitment agency
No
Reported total investment
428,500,000
Currency and observation date were not supplied; this is not a current valuation or a funding round.
Industry
Computer and Network Security
Size
201-500 employees
Headquarters
San Francisco, CA
Organization type
Privately Held
Year founded
2019
Specialties
cybersecuritypenetrationtestingAIpurpleteamsinfosecmachinelearningdatasecurityautonomouspentestingattack surface managementred teams
Horizon3 has 2 open jobs in Canada as of November 6, 2026. Top locations: Toronto.
5+ YOEHorizon3 needs candidates with at least 5 years of cybersecurity sales experience and 3 years in InfoSec or SaaS. Strong channel partner relationships in the region, a record of exceeding quotas, and a college degree or equivalent experience are required.
5+ YOECandidates need 5+ years as a Sales Engineer or Solutions Architect in cybersecurity or infrastructure, experience with enterprise accounts, solid cybersecurity fundamentals, and the ability to explain technical topics to both engineers and executives. A Bachelor's degree in a related field or equivalent experience is expected, and bilingual English and French is preferred.