Temporal

Temporal builds an open-source durable execution platform for developers running complex, long-lived applications. Its SDKs let teams write business logic in their preferred supported programming language, covering processes such as payments, order processing, infrastructure deployment, and AI agents. Developers run application code on their own infrastructure and connect it to either a self-hosted Temporal service or Temporal Cloud, the company’s managed commercial offering.

Founded in 2019 by CEO Samar Abbas and CTO Maxim Fateev, Temporal grew out of their work on distributed systems, including co-creating Cadence at Uber. Its technical approach separates Workflows, which coordinate business logic, from Activities, which perform external operations and can retry failures according to policy. The service preserves an execution history that replacement workers replay to reconstruct state after a crash and continue processing. This makes recovery part of the execution infrastructure rather than something each application must implement independently.

Temporal serves conventional enterprise workloads as well as AI systems: OpenAI, Replit, and Lovable use it to build agents. In 2025, the company reported more than 2,500 Temporal Cloud customers globally. It announced $300 million in Series D financing led by Andreessen Horowitz at a $5 billion valuation in February 2026.