Temporal raises $550M at a $12.55B valuation as demand grows for reliable AI infrastructure | Temporal

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Temporal Raises Series E at $12.55B Valuation | AI Drives Demand for Durable Execution › AboutCareersTalk to Sales Platform OverviewHow Temporal WorksTemporal CloudSecurity Platform DocsPricingUse Cases Customer StoriesBy Industry AIFinancial ServicesBy Audience Platform EngineeringStartupsPartners Use Cases Resources Resource LibraryLearn TemporalCommunityCode ExchangeBlogChangelog Resources Try Free Log In Blog Announcements Temporal raises $550M at a $12.55B valuation as demand grows for reliable AI infrastructure AUTHORS Allanah Hughes PUBLISHED Sep 14, 2026 CATEGORY Announcements DURATION 5 MIN Durable ExecutionAI/MLTemporal Primitives Just a year ago, most of the systems we talked about with our customers were familiar. Things like payments, onboarding, and fulfillment. Now, the stakes are higher. Customers are asking to run agents that work for days, weeks, or months, and this is becoming the new normal. When the scale changes this much and the work runs this long, how do you keep it reliable?
This funding round is what helps us continue to solve that problem.
Today we're excited to announce a $550M Series E at a $12.55B valuation, co-led by Lightspeed, with Wellington Management, Growth Equity at Goldman Sachs Alternatives, and Tiger Global, with strong participation from T. Rowe Price and SV Angel. Returning investors include a16z, Sequoia, Index, GIC, Sapphire Ventures, and Amplify.
The problem is one we share#
AI is making customers expect an application to do so much more, all while the systems underneath are getting more complex and brittle. Most engineering organizations feel this pressure from top to bottom with varying levels of difficulty, since they're all beginning from different starting points.
AI used to sit on top of these systems, but now it's touching the actual plumbing (i.e. the parts that move money, the parts that used to just sit there and work) adding even more opportunity for failure and pressure to create something that holds up.
If you're building during this AI boom, a working agent demo might take you an afternoon. The tricky part is that your competitor can build the same one just as fast. The competitive advantage shows up after the demo, in whether people trust that agent enough to keep using it. If you're an enterprise running decades-old systems, it's a different problem: you can't rebuild from scratch, and you don't have the luxury of waiting. You have to build forward from what you've already got.
Temporal meets both of these teams where they are. Developers write ordinary code, in whatever language the job calls for and whatever tool it needs, and Temporal handles the orchestration across systems for as long as it takes. State gets preserved and work recovers from failures automatically. We call this Durable Execution. It's what lets an application wait days for approval and pick right back up where it left off after an outage, without a developer rebuilding that machinery by hand every time.
We've been at this since before the boom#
Temporal co-founders Samar Abbas and Maxim Fateev were working on this problem long before AI took off, back when software was moving from monoliths into distributed systems. At Amazon, Max led the messaging infrastructure that helped lay the groundwork for SQS, then went on to lead Simple Workflow Service (SWF). Samar joined the team that brought SWF to the public in 2012. At Microsoft, Samar co-created the open-source Durable Task Framework, and Microsoft later built Azure Durable Functions on top of it. The two reunited at Uber to build Cadence, which grew to more than 100 internal use cases in three years before going open source in 2017. They left Uber in 2019 to build Temporal as an independent, open-source platform.
Many companies are making a pivot to AI, but we're solving the same problem Max and Samar have been up against for their entire careers. It's just a harder version of it now.
Trust the numbers#
Our annualized revenue run rate is up more than 200% year over year, and net dollar retention's stayed above 200% since February. In August alone, the platform processed 1.9 trillion billable actions, up more than 350% year over year, while open source installs passed 43 million, up 134% since December 2025. We're now working with more than 4,300 paying customers, up 139% year over year, including OpenAI, Snap, NVIDIA, and JPMorgan Chase. In fact, Snap moves 414 million Stories a day on Temporal, and JPMorgan Chase runs it in regulated production. OpenAI's use of Temporal has grown 60-fold in under a year.
Experiences like Venkat Venkataramani's, OpenAI's VP of Infrastructure, put it in perspective:

"As infrastructure teams increasingly handle really complex, long-running workflows, they have even less control over external dependencies. Durable Execution is more than ever a core requirement for modern AI systems, and Temporal offers a compelling platform to help build it in from the start. This is one of the main reasons why we invested in building a durable orchestration framework powered by Temporal at OpenAI."

Our CEO, Samar, is pretty direct about the ethos that informs our work creating these experiences:

"Reliability has never been optional, but AI has quickly raised the cost of skipping it, and developers need a foundation for that built in from day one, not bolted on afterward. This round is a bet that far more of the world's most demanding software is going to be built on it."

The experiences show the value; the numbers back it up, and the investments keep it going.
What's next#
This funding is going toward growing Temporal's global operations, building on top of a team that has doubled to 570 people over the past year. We're putting more into the core primitives underneath the platform, plus the reliability and security work our enterprise customers keep asking for.
It's a bet on how much more of the world's software will need Temporal, and the developers already running Temporal in production are the reason we get to make this bet. SHARE Temporal Cloud Ready to see for yourself? Sign up for Temporal Cloud today and get $1,000 in free credits. Get started More Posts Feb 17, 2026 Announcements 4 MIN READ Temporal raises $300M Series D at a $5B valuation as AI drives demand for Durable ExecutionSep 14, 2026 Temporal Voices 4 MIN READ A letter from Samar: a year of achievements, and what’s next for us Build invincible applications It sounds like magic, we promise it's not. Documentation Code Base Samples ALL SYSTEMS OPERATIONAL 99.999% trailing 30-day uptime Sign up for our newsletter Email Address Discover OverviewHow Temporal WorksTemporal CloudPricingSecurityTrust CenterStartups Explore Customer StoriesProject-based tutorialsExample applicationsCode ExchangeReplay 2026 RecapAsk an expertBlog Developers Getting Started with TemporalStart building your next appTemporal Cloud docsProduction deploymentsTemporal 101Temporal 102Introduction to Temporal Cloud Community Join our Slack groupFind a meetup near youCommunity forumEventsCrystal Palace Company AboutCareersNewsContact usPartners 2026 © Temporal Technologies. All Rights Reserved. Privacy Policy Candidate Privacy Policy Terms of Service Code of Conduct Sitemap Your Privacy Choices

Temporal recently secured a $550 million Series E funding round, achieving a valuation of $12.55 billion, driven by the growing demand for reliable infrastructure supporting artificial intelligence. This increase in demand stems from the shift where customers require applications to handle increasingly complex, long-running agents, necessitating robust methods for maintaining reliability across extended operational periods. The company addresses the challenge that arises when systems become more complex and brittle, particularly as AI begins to interact with core operational plumbing, increasing the potential for failure and regulatory pressure on engineering organizations to establish dependable foundations.

Temporal provides a solution through Durable Execution, which allows developers to use familiar coding practices while Temporal manages the orchestration across disparate systems for the duration required. This capability ensures that state is preserved and work automatically recovers from failures, eliminating the need for developers to manually rebuild complex machinery following an outage. This approach addresses the core difficulty in the AI era where competitive advantage shifts from rapid prototyping to building user trust in long-running agents.

The foundation of Temporal was built by co-founders Samar Abbas and Maxim Fateev, who possess extensive experience in distributed systems. Abbas’s background includes work at Amazon on messaging infrastructure and the Simple Workflow Service, while Fateev contributed to the open-source Durable Task Framework and Microsoft’s Azure Durable Functions. Their collective experience in building foundational orchestration systems informed Temporal's approach to solving the reliability problem, which they have pursued since the initial development of the platform.

The company demonstrates significant market traction, evidenced by its financial performance and customer adoption. Temporal has seen its annualized revenue run rate increase by more than 200% year over year, with net dollar retention remaining above 200% since February. In a single month, the platform processed 1.9 trillion billable actions, marking a year over year increase of more than 350%, and saw over 43 million open source installs since December 2025. Furthermore, Temporal is currently engaged with over 4,300 paying customers, including major entities such as OpenAI, Snap, NVIDIA, and JPMorgan Chase, demonstrating the platform's utility in high-stakes environments.

The demand for Durable Execution is emphasized by industry leaders, such as Venkat Venkataramani of OpenAI, who noted that for infrastructure teams managing complex, long-running workflows, durable execution is a core requirement for modern AI systems. The ethos of the founders aligns with this view, asserting that reliability is not optional, and the rapid advancement of AI has raised the cost of neglecting it, positioning Temporal as a necessary foundation that developers must build in from the outset rather than retrofitting it later.

The newly secured funding will be allocated toward expanding Temporal's global operations and further strengthening the platform by investing in its core primitives, enhancing reliability, and deepening security measures sought by enterprise clients. This investment reflects a conviction that a substantial portion of the world's most demanding software will rely on a durable orchestration framework like Temporal to manage complexity effectively.