Upwind Security raises $400 million at $3.8 billion valuation

Oct 28, 2026

Upwind Security raised $400 million in a Series C round at a $3.8 billion valuation, led by Bessemer Venture Partners with new investor Canapi Ventures. The AI cybersecurity startup previously raised a $250 million Series B in January 2026 at a $1.5 billion valuation and turned down a $4 billion takeover offer from Datadog Inc. Revenue quadrupled in 2026. The platform unifies cloud and AI security signals for customers including Siemens, Roku and Carvana.

Series C funding round

▪Upwind Security turned down a $4 billion takeover offer from Datadog Inc.
▪Canapi Ventures joined as a new investor in Upwind Security's $400 million Series C round
▪Upwind Security raised $400 million in a Series C funding round at a valuation of $3.8 billion
▪Cyberstarts, Greylock Partners, Craft Ventures Management, Salesforce Ventures and Picture Capital returned as investors in Upwind Security's $400 million Series C round
▪Upwind Security plans to use its $400 million Series C funding for product development and a broader go-to-market push
▪Reports in early September 2026 indicated the Upwind Security Series C round would be $300 million, but the Series C round closed at $400 million
▪In January 2026, a $250 million Series B round led by Bessemer Venture Partners valued Upwind Security at $1.5 billion

Cloud security platform capabilities

▪Co-founder and Chief Executive Amiram Shachar said Upwind Security was built to unify signals so security, development and DevOps teams share one view of their cloud and AI systems, including which data each can reach
▪Upwind Security's cloud and AI security platform works from runtime data gathered across cloud workloads, application programming interfaces and AI agents
▪Developers using Upwind Security can follow any finding back to the code behind it

Cloud platform integrations

▪Amazon Web Services customers can open Upwind Security from inside the AWS console through an integration with AWS Security Hub
▪Upwind Security billing for Amazon Web Services customers runs through their AWS account
▪The Upwind Security platform runs on Microsoft Azure, Google Cloud and Oracle Cloud Infrastructure