Upwind Declines Datadog Acquisition Offer, Raises $400M at $3.8B Valuation

Upwind, an Israeli cybersecurity company with a San Francisco base, announced on October 28, 2026 a $400 million Series C at a $3.8 billion valuation, led by Bessemer Ventures. Datadog had made an acquisition offer at that same valuation, without a premium. Upwind declined and decided to remain independent.