Series A · Cybersecurity · Paris, France · Founded 2025 · 11–50 employees
White Circle builds an independent control, safety, and alignment layer for enterprise AI models and agentic workflows. Their platform acts as a single API runtime control layer that monitors, tests, secures, and automatically applies custom enforcement policies to manage AI model behavior in real time. Founded in 2025, the company quickly secured an $11 million seed round and followed it with a massive $70 million Series A in September 2026. Backed by prominent venture capital firms and a stellar lineup of leading AI researchers and tech executives, they are addressing crucial AI reliability, safety, and security challenges for enterprises.