Over the past year, the questions we get from customers have changed. It used to be “how do I make this workflow more reliable?” Now it’s “how do I build an AI system that doesn’t fall apart in production?” The answer is the same, but the stakes are different.
Today we’re announcing a $300M Series D at a $5B post-money valuation, led by Andreessen Horowitz, with participation from Lightspeed Venture Partners, Sapphire Ventures, Sequoia Capital, Index, Tiger, GIC, Madrona, and Amplify.
The timing isn’t accidental#
AI workloads have changed what production infrastructure needs to look like. Agents that run for hours or days, workflows that branch based on model inputs, orchestration that has to recover from failures mid-execution rather than just restart from scratch. Traditional backends weren’t designed for any of this.
But this isn’t just an AI story. Financial transactions, order fulfillment, compliance pipelines, customer onboarding — any long-running process that has to work correctly over time hits the same wall. AI is making these problems more visible and more urgent, but they’ve always been there. Durable Execution solves them at the foundation. State is preserved, failures are recoverable, and you’re not writing custom retry logic for every integration point.
The complexity of what teams are asking us to support keeps climbing, and so does their confidence that we can handle it. The numbers reflect that. Revenue is up >380% year over year. Weekly active usage grew 350%. Installs up 500%, now exceeding 20 million per month with 9.1 trillion lifetime action executions on their Cloud product alone, 1.86 trillion of those for AI-native companies. The platform routinely handles spikes of 150,000+ actions per second with no advance notice and has proven its disaster recovery during major cloud outages.
Built for developers, backed by the best#
We started Temporal because we believed developers shouldn’t have to solve the same distributed systems problems over and over. As AI makes every system more complex, this conviction matters more than ever. Temporal handles fault tolerance and state management so teams can focus on business logic — whether they’re building agentic AI systems, financial pipelines, or anything in between.
Companies like OpenAI, ADP, Yum! Brands, and Block are running Temporal in production for exactly these kinds of workloads: from orchestrating AI agents at scale to powering mission-critical business processes that can’t afford downtime. As OpenAI’s VP of App Infrastructure put it, “Durable Execution is a core requirement for modern AI systems… as AI systems become more complex and long-running, durability is as important as performance.”
“Building for speed or reliability in agentic applications are often at odds with each other, but building with Temporal's SDKs make it so they don't have to be,” says Matt McDole, CTO of Yum! Brands. “Our devs spend all their time on innovation instead of messy and undifferentiated infrastructure problems.”
What’s next#
This funding accelerates work that’s already underway. We’re investing in AI-native features, expanding the platform, improving the developer experience across all our SDKs, and deepening partnerships with companies like OpenAI, Vercel, Pydantic, and Braintrust.
The demand for Durable Execution has grown faster than we anticipated, and so has the need for people who can help us support the developers building on Temporal. We’re hiring across the company.
We’re also welcoming Raghu Raghuram as a board observer . Raghu served as CEO of VMware, where he helped grow the company from a startup to a Fortune 200 business with $13B in revenue and over half a billion customers. He sees Durable Execution becoming the same kind of foundational infrastructure layer for the next generation of distributed systems, and we’re glad to have him helping us get there.
And we’re putting together our biggest Replay yet, May 5–7 in San Francisco. Three days of talks from the engineering teams actually running Temporal at scale, hands-on workshops, a hackathon, and an afterparty featuring a surprise musical performance. Whether you're a first-timer or a returning attendee, this is the one you won't want to miss.
Thank you#
None of this happens without the developers running Temporal in production, the open-source contributors pushing the project forward, and the customers who trust us with their most critical workloads. We don’t take that lightly, and the job is to keep earning it.
See you at Replay 2026.