Cobalt.io vs Horizon3.ai
Side-by-side comparison of AI visibility scores, market position, and capabilities
Pentest as a service platform connecting enterprises with vetted researchers for on-demand, time-boxed security tests delivering results in days. Eliminates multi-month fixed-scope engagements;
About
Cobalt.io is a pentest as a service platform that replaces the traditional engagement model for penetration testing — multi-month sales cycles, fixed-scope contracts, and point-in-time PDF reports — with an on-demand platform that connects companies with a curated network of vetted security researchers to run targeted, time-boxed pentests that deliver results in days rather than weeks. The platform's core innovation is the application of talent marketplace mechanics to security testing: companies define their test scope and objectives through the Cobalt platform, and vetted pentesters with relevant expertise are matched to the engagement, perform testing, and submit findings through a structured findings interface that delivers actionable vulnerability data in real time rather than in a post-engagement report delivered weeks after testing completes.
Horizon3.ai's NodeZero platform has executed 170,000+ autonomous pentests across 4,000 companies; reported 137% ARR growth in 1H 2025 with enterprise ARR up 485% YoY;
About
Horizon3.ai is a cybersecurity company founded in 2019 by former US National Security veterans and headquartered in San Francisco. Its flagship product, NodeZero, is an autonomous penetration testing platform that executes real-world attack techniques without agents or disruption — simulating what a sophisticated attacker would do across networks, Active Directory environments, cloud infrastructure, and containerized workloads. NodeZero autonomously discovers and chains vulnerabilities, exfiltrates credentials, and generates remediation guidance, replacing the need for infrequent and expensive manual pentests.
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