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Horizon3.ai, a leader in offensive security solutions, announced record-breaking first-half 2025 results, showcasing the growing adoption of its NodeZero autonomous pentesting platform. With 137% year-over-year ARR growth and significant enterprise traction, Horizon3.ai is redefining cybersecurity for global organizations.
137% year-over-year ARR growth in 1H 2025.
Enterprise segment grew 485%, with deployments in Fortune 250 companies.
Nearly 4,000 companies worldwide use NodeZero, up 117% year-over-year.
Executed over 170,000 autonomous pentests, including a record 100,000+ IP test.
Debuted at #121 on 2025 Inc. 5000, #1 in Security with 2,962% growth.
Multiple 2025 awards, including Best SaaS Product for Cybersecurity.
Horizon3.ai reported a 137% year-over-year increase in annual recurring revenue (ARR) for the first half of 2025, driven by strong demand for NodeZero’s continuous security validation. The enterprise segment saw remarkable 485% growth, with deployments across Fortune 250 companies, global healthcare providers, financial institutions, and critical infrastructure operators. “Risk boils down to three questions: Are you exploitable? What would the business impact be if you are? And are attackers actively using those tactics?” said Snehal Antani, CEO and Co-Founder of Horizon3.ai. Nearly 4,000 companies globally now use NodeZero, a 117% increase from the previous year, with over 170,000 autonomous pentests conducted, including a record-setting test of over 100,000 IP addresses for a municipal transportation authority.
NodeZero’s scalability and safety have attracted major clients, including three Fortune Top 10 companies, leading U.S. and EMEA hospital groups, two of the largest U.S. school systems, and a global leader in nuclear fuel enrichment. Horizon3.ai’s partnerships with NCC Group, Tech Mahindra, and Kyndryl have expanded its global footprint, enabling continuous security validation in regulated industries like finance, pharmaceuticals, and national defense. The platform’s ability to operate safely in production environments makes it a trusted choice for complex enterprise needs.
Horizon3.ai debuted at #121 on the 2025 Inc. 5000 list, securing the #1 spot in Security with a 2,962% three-year growth rate. The company also received multiple accolades in 2025, including Best SaaS Product for Cybersecurity, AI in Cybersecurity Innovation Award, The Channel Co. MES Computing 2025 Award, Rising in Cyber Award, multiple Global InfoSec Awards, and recognition on the Fortune Cyber 60 list for the second year. These awards highlight Horizon3.ai’s leadership in autonomous pentesting and its impact on enterprise security.
NodeZero’s autonomous pentesting platform mimics real-world attacker tactics to identify exploitable weaknesses, prioritize fixes based on impact, and verify remediation at scale. Its ability to test large, complex environments—such as the record 100,000+ IP address pentest—demonstrates its unmatched scalability. By providing clear, actionable insights, NodeZero helps organizations focus on critical risks, ensuring robust security in dynamic threat landscapes.
Horizon3.ai empowers organizations to continuously verify their security posture with NodeZero®, the industry’s leading autonomous pentesting platform. Built to think and act like an attacker—but operate safely in production—NodeZero identifies exploitable weaknesses, prioritizes fixes based on real-world impact, and verifies remediation at scale. Customers across manufacturing, healthcare, finance, and national security rely on NodeZero to reduce risk and accelerate security outcomes.
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