Horizon3.ai vs Clover Security
Side-by-side comparison of AI visibility scores, market position, and capabilities
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.
Clover Security is a cybersecurity company providing endpoint protection, identity security, and managed detection and response services for enterprise and mid-market customers. HQ: San Francisco.
About
Clover Security is a cybersecurity company delivering endpoint security, identity protection, and managed detection and response (MDR) services to enterprise and mid-market organizations. The company's platform integrates AI-driven threat detection with security operations capabilities, providing organizations with continuous monitoring, rapid incident response, and threat intelligence to protect against ransomware, identity-based attacks, and advanced persistent threats. Clover Security targets security teams that need enterprise-grade protection but lack the in-house resources to operate a full-scale security operations center.
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