Mate Security raises $35M Series A for agentic security operations platform

Mate Security has raised $35 million in Series A funding to expand its open, agentic platform for security operations, Pulse 2.0 reported. Canaan Partners led the round, with participation from Insight Partners, Team8 and M12, Microsoft's Venture Fund. All of Mate's original investors also participated. The financing comes eight months after Mate emerged from stealth with an oversubscribed $15.5 million seed round and brings the company's total funding to more than $50 million. Mate plans to use the capital to meet enterprise demand, expand into additional markets and product categories, and keep building what it describes as an open foundation for AI-powered security operations. The company reported growth of more than 500% since the third quarter of 2025 and said its platform is being adopted by a growing number of Fortune 500 organizations. Founded by veterans of Wiz and Microsoft, Mate centers on a patent-pending context layer it calls a Security Context Graph, which maps relationships among users, devices, applications, data, security policies, organizational changes and previous investigations so AI agents can judge whether events are suspicious. Agents can detect, investigate, respond and hunt, with an orchestrator coordinating specialized agents, including third-party and customer-built agents. The company says agents follow least-agency principles, receiving only the permissions and contextual information necessary for each assigned task.