0din by Mozilla
Founded 2024
Mozilla's bug bounty program for generative AI models, chatbots, and agents.
AI Model Security & Red Teaming
LLM and model red teaming, model risk assessment, and AI application security testing.
23 vendors; newest added 2026-08-13. Ordered by name. No paid placement.
AISY
Founded 2025
Early-stage London startup developing tooling for securing AI models and applications.
Alice
Founded 2018
AI trust, safety, and security platform for automated red-teaming, runtime guardrails, and monitoring of AI models, apps, and agents.
Arize AI
Founded 2020
US ML and LLM observability platform for tracing, evaluation, and production monitoring of AI systems.
Arthur AI
Founded 2018
US AI performance and firewall platform for monitoring, evaluating, and controlling production model behavior.
Bifrost (by Maxim AI)
Founded 2023
Open-source LLM gateway with low-latency routing, guardrails, and usage governance.
Cranium
Founded 2023
AI security and governance platform inventorying models, agents, and pipelines and producing compliance evidence.
DeepKeep
Founded 2021
AI security product combining a firewall, usage visibility, and trust controls for LLM and vision models.
Gray Swan
Founded 2024
AI security research company that stress-tests and hardens frontier models.
HiddenLayer
Founded 2022
Platform protecting machine learning models from adversarial attacks across their lifecycle.
Lakera
Founded 2021
Zurich real-time GenAI security platform for guarding LLM applications against prompt injection and unsafe outputs.
Mindgard
Founded 2022
Automated red teaming and security testing for AI models and applications.
Mirror Security
Founded 2024
Early-stage Dublin company building a platform for securing AI systems.
OpenAI
Founded 2015
AI research company behind GPT models and ChatGPT, with security research on frontier AI systems.
Patronus AI
Founded 2023
New York LLM evaluation and scoring platform for catching hallucinations, policy breaks, and unsafe outputs.
Preamble
Founded 2020
Pittsburgh AI security firm for prompt-injection defense, red teaming, and AI agent assessments.
Promptfoo
Founded 2023
US open-source LLM evaluation and red-teaming toolkit for testing prompts, agents, and RAG apps.
Straiker
Founded 2024
Security platform for assessing and protecting agentic AI applications.
TrendAI
Founded 2026
Trend Micro unit providing visibility into enterprise AI usage and protection for AI systems.
TrojAI
Founded 2019
AI security platform protecting models and applications during development and at runtime, part of A10 Networks.
Verno Labs
Founded 2025
Offensive LLMs that red team AI agents across a large library of attack classes.
Votal AI
Founded 2024
Runtime protection keeping LLM applications and multi-step agents safe and within policy.
WhyLabs
Founded 2019
Seattle AI observability and security platform for monitoring model quality, drift, and unsafe behavior in production.