Cyera announced a $400 million addition to its Series G on September 22, with the investment coming from Growth Equity at Goldman Sachs Alternatives. Evolution Equity led the Series G, according to the company.
The financing supports Cyera's push to control how AI agents access sensitive business data. The company says its Agent Guardian and Cyera Endpoint products track agents' tool calls, database queries and other actions. Cyera says its acquisition of Oasis Security adds management of identities used by software and machines.

Cyera says it will use the new capital to develop its AI security products, grow its federal business and expand across Europe, the Middle East, Africa and Asia-Pacific.
