Pillar Security
Pillar Security provides a platform to discover, test, secure and govern AI agents across organisations.
- Categories
- AI and LLM security, Cloud security (CNAPP and CSPM), Attack surface management, GRC and compliance automation
- Based in
- Tel Aviv, Israel
- Founded
- 2023
- Ownership
- Private
About Pillar Security
Pillar Security sells a platform for securing AI agents across an organisation. It is aimed at security teams, including CISOs, AppSec, SecOps, GRC and AI practitioners. The platform covers discovery, posture management, red teaming, runtime guardrails and governance. It finds AI agents, models, MCP servers and skills, including shadow AI, and maps what each one can reach. The company says its platform is the only one where business context links discovery, testing and protection, so intelligence builds across the AI lifecycle. It offers agentic red teaming that runs multi-turn attacks against complete AI systems and validates exploitability. Runtime guardrails detect malicious intent, watch agent behaviour and enforce data privacy. Governance features turn policies into technical controls and produce audit-ready reports. Pillar also provides research and a framework called SAIL 2.0.
Products
- RedgraphMaps how tools, prompts and data combine to create attack paths in a specific environment.
- SAIL 2.0 FrameworkA practical guide to securing AI agents.
Ownership and deals
- Raised $9m in a seed roundInvestor Shield CapitalReport on the Pillar Security funding round of April 2025 (opens in a new tab)
Acquisitions come from SecurityWeek's monthly M&A round-ups from 2021 onwards, from Cybersecurity Ventures' quarterly M&A reports for 2020, and a few from Wikipedia lists. Funding rounds from 2022 onwards come from Return on Security's weekly Security, Funded newsletter. These are dated to the month. A few deals added from the news are dated to the day. Smaller deals may be missing. Amounts are in US dollars.