Patronus AI
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Investors
Founders
About
Patronus AI is a San Francisco-based AI evaluation, simulation, and reliability testing company founded in 2023 by Anand Kannappan and Rebecca Qian, both formerly Meta AI researchers 12. The company builds infrastructure for stress-testing AI agents, and at the time of its Series B unveiled “Digital World Models” — large-scale simulation environments that let developers train, evaluate, and improve AI agents across complex digital workflows before production deployment 123. Patronus AI reports revenue growth of more than 15x over the past year and counts virtually every frontier AI lab and many emerging AI startups among its customers 12.
Disclaimer: This is a lean profile built from initial round coverage and may be expanded as more information becomes available.
Funding History
| Date | Round | Amount | Lead | Co-investors |
|---|---|---|---|---|
| 2026-06-25 | Series B | $50M | Greenfield Partners | Notable Capital, Lightspeed Venture Partners, Datadog, Samsung, Factorial Capital, Gokul Rajaram 123 |
What Investors Say
“Patronus is really good at spotting the hacks and making sure they are holding the models accountable.” — Glenn Solomon, Managing Director, Notable Capital, quoted in TechCrunch, June 25, 2026 1
What Founders Say
“We want to be able to actually create the environment in which you can operate an agent that can run for 10 hours or 10 days or 10 weeks.” — Anand Kannappan, Co-Founder & CEO, Patronus AI, quoted in TechCrunch, June 25, 2026 1
Sources
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TechCrunch, “Patronus AI lands $50M to build ‘digital worlds’ that stress-test AI agents,” June 25, 2026. Accessed June 2026. https://techcrunch.com/2026/06/25/patronus-ai-lands-50m-to-build-digital-worlds-that-stress-test-ai-agents/↩↩↩↩↩↩↩
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BigDATAwire (HPCwire), “Patronus AI Raises $50M Series B and Unveils 1st Digital World Models for AI Agents,” June 25, 2026. Accessed June 2026. https://www.hpcwire.com/bigdatawire/this-just-in/patronus-ai-raises-50m-series-b-and-unveils-1st-digital-world-models-for-ai-agents/↩↩↩↩↩
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SiliconANGLE, “Patronus AI grabs $50M in funding to stress-test AI agents in simulated environments,” June 25, 2026. Accessed June 2026. https://siliconangle.com/2026/06/25/patronus-ai-grabs-50m-funding-stress-test-ai-agents-simulated-environments/↩↩