White Circle
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Founders
About
White Circle is a Paris-based AI safety startup founded by Denis Shilov that builds a real-time enforcement layer sitting between users and enterprise AI models, monitoring inputs and outputs against company-specific policies to prevent jailbreaks, hallucinations, and harmful or off-policy outputs 1. The $11M Seed announced May 12, 2026 included participation from notable AI-industry angels: Romain Huet (Head of Developer Experience, OpenAI), Durk Kingma (OpenAI cofounder, now at Anthropic), Guillaume Lample (Cofounder and Chief Scientist, Mistral), Thomas Wolf (Cofounder and Chief Science Officer, Hugging Face), and Ophelia Cai (Partner, Tiny VC); capital will expand the team and grow customer base across the U.S., U.K., and Europe 1.
Funding History
| Date | Round | Amount | Lead | Co-investors |
|---|---|---|---|---|
| 2026-05-12 | Seed | $11M | — | Romain Huet, Durk Kingma, Guillaume Lample, Thomas Wolf, Ophelia Cai (Tiny VC) 1 |
What Investors Say
No independently sourced investor quotes found at this time.
What Founders Say
“Jailbreaks are just one part of the problem. In as many ways people can misbehave, models can misbehave too.” — Denis Shilov, Co-Founder 1
Sources
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Fortune, “Exclusive: White Circle raises $11 million to stop AI models from going rogue in the workplace,” May 12, 2026. Accessed May 2026. https://fortune.com/2026/05/12/exclusive-white-circle-raises-11-million-to-stop-ai-models-from-going-rogue-in-the-workplace/↩↩↩↩