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AI Security Startup Upwind Raises $400M at $3.8B Valuation After Rejecting Datadog Deal

Upwind secures $400 million in Series C funding led by Bessemer Venture Partners, doubling its valuation after rejecting a similar acquisition offer from Datadog.

4 publishers · 4 articles · first seen 28 Oct 2026 · updated 9d ago

Headline and summary written by an AI model from the linked articles; not reviewed by a person. How this was made

First reported by Bloomberg Technology, 50 min ahead of the next publisher · who breaks stories first

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The story so far

4 publishers have covered this in 4 articles since 28 Oct 2026. Bloomberg Technology published first, on 28 October at 11:00 UTC; Quartz followed 50 min later. The most recent article, from TechCrunch, appeared on 28 October at 23:15 UTC.

Outlets reporting it: Bloomberg Technology (major outlet), TechCrunch (major outlet), Quartz, decrypt.co.

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Sources

Every article we clustered into this story. Headlines link to the publisher.

  1. Upwind raises $400M after walking away from Datadog acquisition offer TechCrunch ·
  2. AI Cybersecurity Startup Upwind Raises at $3.8 Billion Value Bloomberg Technology ·
  3. AI Security Startup Upwind Raises $400M at $3.8B Valuation decrypt.co
  4. AI cybersecurity startup Upwind raised $400 million, more than doubling its valuation Quartz

In this story

  • Upwind
  • Datadog
  • Bessemer Venture Partners
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