Pillar Security

Pillar Security provides a security platform designed to protect artificial intelligence systems throughout the AI software lifecycle. The company addresses security challenges specific to generative AI applications, including AI agents and large language model implementations. Their platform offers capabilities including AI asset discovery across source control, ML Ops, and data infrastructure to identify models, prompts, and datasets that may be unknown to security teams. The platform includes red teaming capabilities that test AI systems for vulnerabilities, adaptive guardrails that continuously optimize based on red teaming results, and protection mechanisms against prompt injection attacks, data leakage, and harmful content generation. Pillar's solution provides visibility into GenAI transactions and protects sensitive data while maintaining operational efficiency. The platform can be self-hosted on customer cloud infrastructure to maintain data control. Pillar Security serves enterprises across regulated industries including financial services and healthcare, as well as AI-native companies building agent-based systems. The company has discovered critical vulnerabilities in widely-used AI infrastructure tools, such as identifying a sandbox escape flaw in n8n that exposed enterprise AI systems. Pillar Security has received recognition from Frost & Sullivan as the 2025 Competitive Strategy Leader in the global generative AI security industry and has raised $9 million in seed funding led by Shield Capital.