Temporal
AI Infrastructure · Developer Tools · Cloud Software
Temporal raises $550M Series E at $12.55B valuation for AI infrastructure
September 14, 2026
Raised
$550M
As AI agents start running for weeks instead of seconds, keeping them from failing becomes the real competitive edge.
- Temporal announced a $550M Series E at a $12.55B valuation, co-led by Lightspeed, Wellington Management, Goldman Sachs Alternatives' Growth Equity arm, and Tiger Global.
- Temporal's open-source 'Durable Execution' platform lets developers write normal code while it automatically preserves state and recovers from failures across long-running workflows and AI agents.
- Annualized revenue run rate has surpassed $250M, growing more than 200% year-over-year, with net dollar retention above 200% since February 2026.
- Temporal Cloud processed over 1.9 trillion actions in August, up more than 350% year-over-year, while open-source installs topped 43 million, up 134% since January.
- The company now counts more than 4,300 paying customers, including OpenAI, Snap, NVIDIA, Netflix, and JPMorgan Chase, and has doubled headcount to 570 over the past year.
- Temporal says the funds will expand global operations, deepen R&D on core platform primitives, and fund reliability and security work requested by enterprise customers.
- As AI agents move from demos into core systems like payments, the bottleneck shifts from building agents to trusting them to run reliably for days or months, making orchestration infrastructure a strategic layer of the AI stack.
Lead Investors
LightspeedWellington ManagementGoldman Sachs AlternativesTiger Global