Beacon Security raises $13M seed to power agentic AI for cyber defense

On July 16, 2026, New York-based Beacon Security announced a $13 million seed round led by Notable Capital with participation from Holly Ventures, AlphaDrive Ventures, SVCI and Jefferies Family Office. Beacon is building an ‘agentic cybersecurity’ platform that provides an intelligent data layer and production-ready security agents for human and AI defenders.