Composable AI Agents for Security Operations

Cotool is an AI-driven SecOps automation platform built to work alongside security teams — not replace them. Designed by practitioners who previously built products for some of the world’s top security organizations, Cotool eliminates repetitive work, unifies fragmented workflows, and accelerates the entire detection and investigation lifecycle. Backed by Y Combinator, the company focuses on empowering analysts by automating the tasks that typically consume the majority of their time.

Cotool’s mission is to “make security better for the people who do it.” The platform aims to reduce burnout, cut down on manual toil, and allow SecOps professionals to focus on strategic investigation and response rather than tedious rule-writing or alert triage.

As a small and mostly bootstrapped company, Cotool achieved a new high in 2025 when the three-person startup reportedly reached $330,000 in revenue.