Armadin vs SentinelOne
Side-by-side comparison of AI visibility scores, market position, and capabilities
AI-native cybersecurity using agentic attacker swarms. Founded by ex-Mandiant CEO Kevin Mandia. Record $189.9M Seed+Series A (Mar 2026). Founded 2025, Palo Alto.
About
Armadin was founded in 2025 in the United States by Kevin Mandia — former CEO of Mandiant, widely regarded as one of the world's foremost cybersecurity incident response firms — with a mission to fight AI-powered cyber threats with AI-native offensive and defensive capabilities. The company was built on the premise that as adversarial AI lowers the barrier to sophisticated attacks, the only effective defense is an equally capable AI system that can simulate, anticipate, and respond to attacker behavior autonomously.\n\nArmadin's platform uses agentic attacker swarms — coordinated AI agents modeled on real adversary tactics, techniques, and procedures (TTPs) — to conduct continuous red teaming, vulnerability discovery, and attack surface validation against enterprise environments. Unlike periodic penetration testing engagements, Armadin's agentic approach delivers persistent, automated adversarial pressure that reflects the reality of modern threat actors operating continuously. The platform integrates with existing security operations workflows to surface findings in actionable formats for blue team remediation.\n\nArmadin raised a record $189.9M across its Seed and Series A rounds in March 2026, an extraordinary funding level for a company founded just one year prior. The scale of funding reflects both Kevin Mandia's exceptional credibility in the cybersecurity market and the urgency enterprises feel around AI-native threat readiness. Armadin enters a market where legacy red team tooling and manual penetration testing are increasingly inadequate against AI-assisted adversaries, positioning it as a defining company in the next generation of offensive security.
AI-powered endpoint security with $800M revenue; autonomous threat response and rollback on the Singularity Platform competing with CrowdStrike after CrowdStrike's 2024 global outage.
About
SentinelOne is a cybersecurity company providing AI-powered endpoint detection and response (EDR), extended detection and response (XDR), cloud security, and identity security through its Singularity Platform — using machine learning to detect and autonomously respond to malware, ransomware, and advanced threats in real time without requiring human intervention. Listed on NYSE (NYSE: S) and headquartered in Mountain View, California, SentinelOne generates approximately $800 million in annual revenue and competes with CrowdStrike for the enterprise endpoint security market.\n\nSentinelOne's Singularity Platform differentiates through autonomous response capability — when a threat is detected, the platform can automatically isolate infected machines, terminate malicious processes, roll back files to pre-attack states, and remediate damage without requiring a security analyst to approve each action. This "autonomous" response model reduces the threat dwell time and damage from fast-moving ransomware attacks that can encrypt thousands of files in minutes. The cloud-native architecture uses the Singularity Data Lake to correlate telemetry across endpoints, cloud workloads, and identities for unified threat detection.\n\nIn 2025, SentinelOne competes primarily with CrowdStrike Falcon for enterprise EDR/XDR market share — the two companies have become the dominant modern endpoint security vendors, having displaced legacy antivirus from McAfee and Symantec. The July 2024 CrowdStrike Falcon content update outage (which caused millions of Windows machines to crash) created a significant opportunity for SentinelOne, which accelerated customer acquisition in the months following. SentinelOne's 2025 strategy focuses on growing Purple AI (its generative AI security analyst that provides natural language threat investigation), expanding cloud workload protection, and growing identity security through its Singularity Identity product.
AI Visibility Head-to-Head
Key Details
Capabilities & Ecosystem
Capabilities
Integrations
Also Compare
Track AI Visibility in Real Time
Monitor how your brand performs across ChatGPT, Gemini, Perplexity, Claude, and Grok daily.