Upwind Secures \(100M Series A at \)900M Valuation to Revolutionize Cloud Security

Confirmed Funding Round and Investor Backing

Cloud security startup Upwind has officially closed a $100 million Series A round at a $900 million post-money valuation, confirming earlier reports of investor interest. The funding was led by Craft Ventures, with participation from TCV, Alta Park Capital, and existing investors including Greylock, Cyberstarts, Leaders Fund, Sheva Fund, and Penny Jar Capital (backed by NBA star Stephen Curry). This brings Upwind’s total funding to $180 million, tripling its valuation since its seed round.

Growth and Expansion Plans

With this capital infusion, New York-based Upwind plans to:

  • Double its workforce from 150 to 300 employees across key hubs in the Bay Area, Iceland, the U.K., and Israel.
  • Accelerate sales and marketing efforts to expand its market reach.
  • Further develop its runtime security platform, which prioritizes real-time threat detection and remediation.

The Upwind Advantage: Cutting Through Alert Fatigue

Upwind’s platform addresses a critical pain point in cloud security: alert overload. By leveraging runtime data, the company claims to reduce irrelevant alerts by 90%, allowing teams to focus on high-priority threats. Its comprehensive coverage includes:

  • Cloud Security Posture Management (CSPM)
  • Cloud Workload Protection (CWPP)
  • Cloud Detection and Response (CDR)
  • API, Identity, and Container Security

Why Investors Are Betting Big on Cloud Security

The $900 million Series A valuation underscores the booming demand for cloud security solutions. As enterprises increasingly rely on scalable, dynamic cloud infrastructure, vulnerabilities multiply. Key challenges driving adoption include:

  • Expanding attack surfaces from interconnected devices, apps, and APIs.
  • Rapid cloud service adoption creating inadvertent security gaps.
  • Sophisticated threat actors exploiting runtime vulnerabilities.

Competitive Landscape and Future Roadmap

Upwind operates in a crowded space alongside Wiz, Orca, and Palo Alto Networks, but CEO Amiram Shachar emphasizes its runtime-first approach as a differentiator. The company also plans to:

  • Integrate AI-driven predictive alerts by 2025.
  • Expand into code-level dependency analysis for higher-fidelity threat detection.

Investor Perspective

“Cloud security is still in its early innings,” said Morgan Gerlak, Partner at TCV. “Upwind’s focus on runtime positions it to lead the next wave of innovation in this critical market.”

The Bigger Picture

Upwind’s funding mirrors broader trends in cybersecurity, where high-growth startups like Wiz (which recently rejected a $23B acquisition offer) are redefining enterprise defense strategies. With cloud breaches escalating, expect continued investor enthusiasm for cutting-edge security innovators.


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