Restate, a Berlin-based startup founded in 2022, has raised $20 million in a Series A funding round led by Singular, with participation from Redpoint Ventures and Capital One Ventures. The company provides a durable execution engine designed to make multi-step workflows resilient to crashes and network interruptions — a capability that has proven increasingly valuable for managing AI agent processes.
Co-founder Stephen Ewen told TechCrunch that while the platform was not originally built for agents, it turned out to be a natural fit. "It never was built for agents in the beginning, but it just happened to be a perfect match for all these problems that agents surface," Ewen said. He noted that ensuring durability is critical for agent workflows, which run longer and follow inherently unpredictable paths compared to traditional software. "You need to make sure you track exactly what you do to make it reproducible and have a consistent outcome," he added.
Over the past few months, Restate has closed multiple six- and seven-figure customer contracts, reflecting momentum driven by the explosion of AI agents. High-profile customers include the vibe coding platform Replit. The startup also serves Fortune 500 companies, including those in the financial sector, according to Ewen.
With the fresh capital, Restate intends to go head-to-head with Temporal, the dominant player in the durable infrastructure space. Temporal, founded in 2019, recently announced a $550 million Series E at a $12.55 billion valuation. Despite being much smaller, Restate differentiates itself with an architecture that does not rely on an external database; instead, it uses its own storage, replication, and redundancy layers to deliver a faster and more lightweight execution engine. Ewen said the approach allows Restate to serve both heavy-weight workflows and more cost-sensitive use cases.
The company plans to use the funding to hire a go-to-market team, bring on more engineers, and expand its office in the San Francisco Bay Area to be closer to customers. Ewen believes Restate’s technology will eventually become a broadly adopted tool. "If we fast-forward a couple of years, it's one of those tools, like a database, that I think pretty much any company will have a use case for, no matter their shape and size," he said.
Ewen previously co-created the open-source stream-processing framework Apache Flink and served as CTO of Data Artisans, which was acquired by Alibaba in 2019 and rebranded as Ververica. Restate’s other co-founders are Igal Shilman and Till Rohrmann, former colleagues from Data Artisans and Ververica.