Restate
Category: AI Infrastructure
Restate is a durable execution infrastructure company providing a fast, lightweight runtime for AI agents, workflows, and distributed backends. Restate was founded in 2022. The company is led by Stephan Ewen. Based in Berlin, Germany. Team size: 11-50. Total funding raised: $27M. Latest round: Series A. Key investors include Singular, Redpoint Ventures, Capital One Ventures, Essence VC, firstminute.capital, Jay Kreps (angel), Neha Narkhede (angel), Olivier Pomel (angel), Shawn "Swyx" Wang (angel).
- Founded
- 2022
- Headquarters
- Berlin, Germany
- Team size
- 11-50
- Total funding
- $27M
Value proposition
A low-latency, cost-efficient durable execution runtime that makes durability a property of the infrastructure itself — surviving crashes and network failures for AI agents, workflows, and microservices — deployable as open-source, fully managed cloud, or BYOC.
Products and solutions
Restate open-source runtime (self-hosted single binary), Restate Cloud (fully managed), Restate BYOC (Bring Your Own Cloud, runs in customer VPC), Durable Functions, Workflows, Virtual Objects, SDKs for TypeScript, Python, Java, Go, Kotlin, Rust
Unique value
Purpose-built distributed log and event-driven orchestrator (not layered on a general-purpose database) delivering sub-10ms durable action latency, >100K actions/s, and up to 10x lower cost than legacy durable execution engines — built by the original creators of Apache Flink.
Target customer
AI companies and enterprises building AI agents, distributed backends, and mission-critical workflows (financial services, ERP, agent platforms)
Industries served
AI agents, distributed backend infrastructure, financial services, enterprise workflow orchestration, ERP
Technology advantage
Purpose-built distributed log with custom storage, replication, consensus, and failover; self-contained single binary with no external database dependency; RocksDB local storage + object-store snapshots; Virtual Objects for stateful concurrent entities; low-latency durable execution inside the agent loop; BYOC deployment for data-residency-sensitive workloads.
How they differentiate
Unlike Temporal (heavyweight, workflow-centric, higher per-action cost) and Inngest/DBOS, Restate offers sub-10ms durable action latency, a self-contained single binary with no external database, Virtual Objects for stateful entities, and flexible self-hosted/Cloud/BYOC deployment — positioning durability as a general infrastructure primitive rather than a workflow-only tool.
Main competitors
Temporal, Inngest, DBOS
Key partnerships
Integrations with Vercel AI SDK, OpenAI Agents SDK, Google ADK, Pydantic AI, LangChain, deployment integrations with Kubernetes, AWS Lambda, Google Cloud Run, Cloudflare, Modal, Daytona
Notable customers
Replit (Replit Agent durable orchestration), DOSS, BILT rewards, Fortune 500 US bank (treasury/financial workflows), Coralogix, Rhize, Cinder
Major milestones
Founded 2022 by Apache Flink creators, Restate 1.0 launch and $7M seed (June 2024), Restate Cloud public launch, BYOC launch, $20M Series A led by Singular (Sept 30, 2026) bringing total to $27M, US expansion with San Francisco hub
Growth metrics
Used by hundreds of companies; >100K durable actions/s in production; <10ms P99 latency overhead per durable action; up to 10x cheaper at scale; ~20 employees (Jan 2026)
Market positioning
Emerging leader in the next-generation durable execution category, positioned as the lightweight, high-performance alternative to Temporal for AI agent and backend orchestration; expanding from Europe into the US with a new San Francisco commercial hub.
Geographic focus
Europe (Berlin HQ) and United States (San Francisco hub); global open-source developer community
About Stephan Ewen
Co-creator of Apache Flink; CTO of Data Artisans (acquired by Alibaba, rebranded Ververica); Technical University of Berlin
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Official website: https://restate.dev