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Upwind Security Raises $400 Million Amid Acquisition Speculation

Upwind Security Raises $400 Million Amid Acquisition Speculation

First seen 28 Oct 2026, 14:08 UTC • •
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ThreatCluster AI
ThreatCluster •October 28, 2026 at 18:11 UTC
  • •Upwind Security raised $400 million, increasing its valuation to $3.8 billion.
  • •The funding will enhance Upwind's AI-driven cloud security capabilities.
  • •Reports of a $4 billion acquisition offer from Datadog were disputed.

Upwind Security announced a $400 million Series C funding round, raising its valuation to $3.8 billion. This funding comes less than nine months after a $250 million Series B round. The company, which specializes in cloud security, plans to enhance its platform with AI capabilities across endpoints, code, and cloud. Reports suggested that Datadog may have made a nearly $4 billion acquisition offer for Upwind, but this was disputed by other sources. Upwind's platform is already utilized by major organizations like Siemens and Roku. The funding round was led by Bessemer Venture Partners, with participation from existing investors. The company aims to expand its product development and engineering efforts with the new capital.

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Timeline

2026-01-05
Upwind raises $250 million in Series B
Upwind Security announced a $250 million funding round at a valuation of $1.5 billion.
Securityweek
2026-10-28
Upwind raises $400 million in Series C
Upwind Security announced a $400 million Series C funding round, bringing total funding to over $800 million.
Securityweek
2026-10-28
Acquisition interest reported
Reports emerged of Datadog's alleged $4 billion acquisition offer for Upwind, later disputed by other sources.
Calcalistech

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Common questions

What will Upwind do with the new funding?
Upwind plans to enhance its product development and engineering efforts, particularly in AI security.
Who are Upwind's notable clients?
Upwind's platform is used by organizations such as Siemens, Roku, and Nubank.
Was the acquisition offer from Datadog confirmed?
No, the reported $4 billion acquisition offer from Datadog has been disputed by other sources.