Loading company…
Onyx Security provides tools for enterprises to monitor, govern and secure AI agents and models.
Founded in 2024 and based in New York, Onyx Security helps enterprises monitor AI use, identify vulnerabilities and apply security policies. Its Onyx Control Plane provides visibility into AI prompts, responses and agent actions, with customers in sectors including finance, healthcare and technology. In July 2026, the company raised USD 113 million in Series B funding led by Bessemer Venture Partners, with participation from TCV, FirstMark, Vintage Investment Partners, QuantumLight, G Squared, Cyberstarts and Conviction. The round valued the company at USD 640 million post-money.
Funding rounds, investors and people for this company come from licensed data. A free account shows the first rows of each section; an approved contribution opens every profile in full.
Sign in