Cinder

Cinder is the industry-leading trust and safety operations platform, helping organizations combat AI-powered abuse, fraud, and harmful content at scale. Founded by former Meta employees, Cinder provides mission-critical infrastructure protecting platforms including OpenAI, Spotify, and Depop from digital threats and manipulation.

Cinder's platform automates threat detection, investigation, and response workflows through AI-powered agentic safety capabilities. Radical Ventures led the company's $41M Series B in 2026, bringing total funding past $60M alongside Accel, M12, and Y Combinator.