White Circle offers an AI governance platform accessible via a single API that tests, protects, observes and optimises deployed AI systems in real time. Its proprietary models monitor inputs and outputs to detect harmful content, hallucinations, prompt-injection attacks, model drift and malicious users, while analytics tools help teams evaluate and improve model performance over time. Customers can create custom policies and automate enforcement actions such as rate limiting or banning abusive users, and the system continuously improves through labelled user feedback. The company emphasises making oversight accessible to both technical and non-technical teams via a centralised interface and API. White Circle plans to use its new seed funding to accelerate product development, expand hiring across the US, UK and Europe, and grow its global customer base. The company has raised $11 million in seed financing.

Total raised

$11M

Funding rounds

1

Latest round

Seed

Latest activity

May 2026