Horizon3.ai

Premium
Read 30 Horizon3.ai reviews and testimonials from customers, explore 28 case studies and customer success stories, and watch 13 customer videos to see why companies chose Horizon3.ai as their Exposure Management Software

The NodeZero™ platform empowers organizations to continuously find, fix, and verify exploitable attack surfaces. It is the flagship product of Horizon3.ai, founded in 2019 by former industry and U.S. National Security veterans. Our mission is to help organizations see their networks through the eyes of the attacker and proactively fix problems that truly matter, improve the effectiveness of their security initiatives, and ensure that they are prepared to respond to real cyberattacks.

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.

Show more
  • 30 Testimonials View
  • 28 Case Studies View
  • 13 Customer Videos View
Customer Rating Review Score based on 1057 reference ratings
4.8/5.0 (1057)
  • Winter 2026 Top Performer Adversarial Exposure Validation Software
  • Winter 2025 Rising Star Breach & Attack Simulation Software
    • 2026 Top Rated Software Award
More Awards

More from Horizon3.ai

Featured Testimonials

  • “This is a good experience for me to teach the team the importance of credential use and reuse. We never would have found this vulnerability without NodeZero.”

  • “Our clients don’t just need reports; they need ongoing assurance that their defenses are resilient. By adopting continuous assessments, we’re able to deliver that confidence.”

  • “This structure gives them flexibility but also introduces challenges for maintaining consistency and resilience.”

Featured Case Studies

  • City of St. Petersburg cuts weaknesses by 45% with Horizon3.ai

  • North Carolina Electric Cooperatives runs monthly security testing across 26 co-ops with …

  • National Healthcare Staffing Organization gains domain admin access visibility in 17 minutes …

Featured Customer Videos

  • Airiam - Customer Success Story (Art Ocain - Strategic Alliances and Incident Response Product Management Lead)
  • Moravian University  - Customer Success Story (Jim Beers - Director of Information Security)
  • F12.Net - Customer Success Story (Calvin Engen - Chief Technology Officer)

Additional Horizon3.ai Information & Resources

Read Horizon3.ai Reviews, Testimonials & Customer References from 30 real Horizon3.ai customers.

Browse Horizon3.ai Case Studies, Customer Success Stories, & Customer References from 28 businesses that use Horizon3.ai.

Watch Horizon3.ai Customer Videos to learn why 13 businesses chose Horizon3.ai.

Explore answers to frequently asked questions about Horizon3.ai.