PromptArmor

Active

LLM Security and Compliance

Winter 2024Founded 2023San Francisco, CA, USA

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From their website

as of Jun 7, 2026promptarmor.com ↗

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PromptArmor provides a platform to assess and monitor AI-related risk in vendor ecosystems, focusing on third-party AI tools and evolving threats. It emphasizes continuous risk monitoring, adaptive insights, and support for governance, risk, and compliance teams dealing with AI risk across TPRM, InfoSec, and Privacy.

The platform identifies which vendors are using AI within their offerings, analyzes how LLMs interact with internal and external data, and evaluates risk across 26 vectors aligned to OWASP Top 10 for LLMs, NIST AI RMF, and MITRE Atlas. It provides monitoring for changes in AI scope or permissions, maps AI assets to data they touched, and offers assurance features to showcase AI controls and risk posture to accelerate security reviews and close pipelines. The solution appears to be used for continuous risk monitoring, threat intelligence, and governance across TPRM, InfoSec, and Privacy teams.

Who it’s for: Fortune 50 to AmLaw 50 and other Global 2000/1000 organizations across industries (software, financial institutions, healthcare, law firms, technology, manufacturing) seeking AI third-party risk management, security reviews, and governance.

Features

Identify AI usage in vendor offerings
Assess how LLMs interact with data
Monitor AI assets for scope/permission changes
Map AI assets to data interactions
Assurance for AI controls and risk posture
Threat intelligence for AI applications
Case studies and customer validation

Mentions of case studies from large enterprises, emphasis on governance/compliance across multiple industries, and ongoing product capabilities for continuous risk monitoring.