Daytona

Daytona builds programmatic, composable computers for AI agents. Its stateful sandboxes spin up in under 90 milliseconds, run untrusted AI-generated code in full isolation, and can be started, paused, or snapshotted on demand. Founded by Ivan Burazin and Vedran Jukic, the company pivoted from developer-environment management into agent-native infrastructure in 2025 and raised a $24M Series A led by FirstMark Capital in February 2026. Customers include LangChain, Writer, Turing, and SambaNova.