Prompt Security has built an AI security startup map that covers 367 companies. The breakdown, with companies potentially appearing multiple times, looks like this: AI observability and governance (239 vendors); runtime security and guardrails (188); agentic identity protection (89); MCP and LLM gateways (79); AI red teaming (78); AI-SPM (64); agentic data governance (63); and model security (52).
Richard Stiennon, who tracks cybersecurity vendors in his IT-Harvest database, has identified 21 distinct AI security categories, including SOC automation, governance, vulnerability management, guardrails, model security, deepfake defense, agent security, MCP security, and AI identity. There is no indication that the growth rate is slowing down. In June, Stiennon added 20 new AI security startups to his database.
Representative vendors include Noma Security, Hidden Layer, Zenity, Latera Guard, Rebuff, Vigil, LLM Guard, Vectra AI, 7ai, and Mindguard.
