Incalmo is a Menlo Park, California cybersecurity company founded in 2025 that builds autonomous cybersecurity systems — AI agents that plan and execute network attacks and defenses without a human operator driving each step. It grew out of CEO Brian Singer's Carnegie Mellon PhD research, published with Anthropic, on an LLM-driven system that autonomously red-teamed multi-host networks and reproduced attacks such as the Equifax breach from high-level strategy alone. The long-term thesis is to pit autonomous attackers and defenders against each other at scale so the defenders improve, in the way self-play trained AlphaGo. The company raised an $8.7M seed round after going through Pear VC's PearX program, and was a finalist at the RSAC 2026 Launch Pad.