Temporal: $300 Million Series D At $5 Billion Valuation Secured For Open-Source Durable Execution Platform
By Amit Chowdhry ● Feb 18, 2026
Temporal, the open-source platform powering agentic AI applications, has raised $300 million in a Series D financing round at a $5 billion valuation as companies accelerate efforts to move AI systems from pilot projects into production environments. The round was led by Andreessen Horowitz, with participation from Lightspeed Venture Partners and Sapphire Ventures. Existing investors, including Sequoia Capital, Index Ventures, Tiger Global Management, GIC, Madrona Venture Group, and Amplify Partners, also participated.