Temporal raised $300 million in a Series D funding round at a $5 billion valuation, positioning the Bellevue company as a key infrastructure provider for AI agents moving into production.
The round, led by Andreessen Horowitz, doubles the company’s valuation from October. Temporal builds open-source software and a cloud service that helps companies run long-running, complex workflows reliably through what it calls durable execution. The company says that as AI systems become more autonomous and take actions across multiple services, reliability has become critical.
“Agentic AI doesn’t fail because the models aren’t good enough,” said Samar Abbas, CEO and co-founder of Temporal. “It fails because the systems around them can’t handle real-world execution.”
Temporal says revenue grew more than 380% year-over-year, weekly active usage increased 350%, and installations rose 500%. Its cloud platform has processed 9.1 trillion lifetime action executions, including 1.86 trillion for AI-native companies. OpenAI uses Temporal to help power certain production workflows. Other customers include ADP, Yum Brands, and Block.
Temporal’s platform preserves application state, automatically retries failed steps, and allows workflows to resume exactly where they left off instead of starting over. Co-founders Abbas and Maxim Fateev previously worked together at Uber and helped build an internal orchestration engine called Cadence, which inspired them to launch Temporal in 2019. Abbas took over CEO duties from Fateev in 2024. Fateev is now CTO.
Temporal has raised $650 million to date and employs 375 people. The company also announced Tuesday that Raghu Raghuram, former VMware CEO and general partner at Andreessen Horowitz, is joining as a board observer. Other backers in the latest round include Lightspeed Venture Partners and Sapphire Ventures, along with existing investors including Sequoia Capital, Index, Tiger, GIC, Madrona, and Amplify.
