Restate lands $20M as the need for durable infrastructure increases with AI agents

When Stephen Ewen co-founded Restate in 2022 to provide durable workflow infrastructure, he couldn’t have anticipated how valuable such an offering would become for managing AI agent processes.

The Berlin-based startup had set out to build an execution engine that made multi-step workflows resilient to crashes and network interruptions — something that made it a fit for the agentic era.

“It never was built for agents in the beginning, but it just happened to be a perfect match for all…