AI Security
Securing AI/ML systems, models, pipelines, and defending against AI-driven threats.
Portal26
AI application governance platform that discovers shadow AI usage and enforces data-leak guardrails across an organization's generative AI…
DeepTempo
A seed-stage San Francisco startup running a deep-learning log model natively inside Snowflake.
RedCarbon
An Italian AI-agent vendor building automated SOC and NIS2 compliance tooling, including an AI Compliance Analyst that monitors…
Credal AI
Credal (Y Combinator W23) is a governance and security layer for enterprise AI agents — scoped tool access,…
Zendata
An AI risk intelligence and data privacy platform tracing how sensitive data flows into and through AI applications,…
TrueScreen
Italian data-authenticity platform that certifies photos, video, audio, and documents at the moment of capture, plus a GenAI…
Outerlimit
A pre-seed New York startup building a decentralized, cryptographic authorization layer that fragments credentials so no single compromised…
Ray Security
Ray Security discovers shadow AI tools and monitors real-time data interactions between enterprise data and LLMs, copilots, and…
Velatir
Danish AI-governance platform adding human-in-the-loop review and control over enterprise AI agent actions.
Portkey
A San Francisco AI Gateway startup processing trillions of tokens monthly, acquired by Palo Alto Networks for $140M.
DetectifAI
DetectifAI builds compact, on-device AI models that detect AI-generated and cloned voices in real time during phone calls,…
OpenAI
A leading AI lab that acquired AI red-teaming tool Promptfoo in March 2026 to embed security testing in…
Cofide
A six-person, 2024-founded London startup issuing short-lived identities to AI agents, acquired by Keyfactor in July 2026.
Gecko Security
Gecko Security is a Y Combinator-backed AI security testing platform that uses LLMs and custom code indexing to…
Confident Security
Confident Security builds CONFSEC, a confidential-computing layer that lets enterprises use third-party AI models while cryptographically proving prompts…
Attestable
Attestable builds zero-knowledge proof technology that lets organizations cryptographically verify what an AI system actually computed — which…
Capsule Security
Runtime guardrail platform that monitors and controls AI agent actions the instant before they execute, across tools like…
Manufact
Manufact is a YC-backed startup building open-source SDK and cloud hosting infrastructure for deploying MCP servers that connect…
Arrakis Security
Autonomous workforce governance platform that discovers AI agents, monitors their behavior, and blocks policy violations across SaaS, cloud,…
Neural Defend
Techstars-backed API that detects deepfake audio, video, image, and document manipulation for identity verification and fraud teams.
Gray Swan
A Carnegie Mellon-born Pittsburgh AI red-teaming and safety vendor used directly by frontier AI labs.
Manetu
A Ridgewood, NJ seed-stage startup that pivoted from privacy-preserving knowledge graphs to AgentVisor, a hypervisor-style authorization layer that…
BeeSafe AI
Y Combinator-backed San Francisco startup deploying AI agents that directly engage scammers to expose and disrupt their infrastructure.
Kai
Newly launched agentic AI security platform from Claroty and SecurityMatter co-founders, using autonomous agents to detect and respond…