Upwind Security closed a $400 million Series C funding round on October 28, 2026, at a $3.8 billion valuation. The San Francisco-based company, founded in 2022, reached this milestone under leadership from Bessemer Venture Partners with participation from Canapi Ventures and all prior backers.
The round brings total capital raised above $800 million. Valuation climbed from roughly $900 million after the December 2024 Series A to $1.5 billion following the January 2026 Series B, then more than doubled again in under nine months.
Round Structure and Investor Participation
Bessemer Venture Partners led the round. Existing investors including Greylock Partners, Cyberstarts, Craft Ventures, Salesforce Ventures, TCV, Alta Park Capital, Picture Capital, Leaders Fund, Penny Jar Capital, Cerca Partners, and Swish Ventures all joined the financing. Canapi Ventures entered as a new participant.
Upwind reported that revenue quadrupled in 2026. Annual recurring revenue passed $50 million with quarterly additions of $20 million to $30 million, positioning the company to reach approximately $90 million by year end. The platform now serves hundreds of organizations across AWS, Azure, Google Cloud, and Oracle environments.
Funds will support product development, engineering expansion, go-to-market efforts, and additional AI capabilities. The company stated it now ranks among the most capitalized firms in cloud and AI security.
Runtime-First Platform and Market Position
Upwind delivers a runtime-native security platform that gathers real-time data from workloads, APIs, and AI agents rather than relying solely on static scans. The approach provides continuous visibility, threat detection, and automated remediation across multi-cloud deployments.
CEO Amiram Shachar, formerly of Spot.io, noted that AI-driven infrastructure changes have accelerated both the scale of cloud workloads and the sophistication of associated threats. The company is extending sensors to AI agents, endpoints, identity systems, and data layers while maintaining integration with AWS Security Hub.
Customers include Siemens, Roku, Carvana, Nubank, Supabase, and ClickUp. The October financing followed earlier reports of acquisition interest from Datadog at a comparable valuation range, which Upwind declined in favor of remaining independent.
Outlook for Cloud and AI Security Buyers
Enterprises evaluating cloud security tools now face a market with several well-funded runtime-focused vendors. Upwind’s capital position allows continued investment in AI-specific detection features at a time when organizations report rising workload complexity.
Security teams can review Upwind’s integration options with existing cloud consoles and its expansion roadmap for AI agent monitoring before committing to new deployments. The rapid valuation growth reflects sustained demand for platforms that combine runtime telemetry with automated response across major public clouds.
Frequently asked questions
What was the size and valuation of Upwind’s latest funding round?
Upwind closed a $400 million Series C on October 28, 2026, at a $3.8 billion valuation. The round was led by Bessemer Venture Partners.
How has Upwind’s revenue changed in 2026?
The company reported that revenue quadrupled during 2026. ARR surpassed $50 million with projections reaching roughly $90 million by year end.
Which investors participated in the Upwind Series C?
Bessemer Venture Partners led the round. Canapi Ventures joined as a new investor while all existing backers, including Greylock and Salesforce Ventures, participated again.
What technology does Upwind focus on?
Upwind provides a runtime-first cloud security platform that uses real-time data from workloads and AI agents for visibility and threat response across major cloud providers.
By YasTech Editorial
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