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

Upwind, an Israeli cybersecurity company with a San Francisco base, announced a $400 million Series C, a later-stage private funding round, on October 28, 2026, valuing it at $3.8 billion. Bessemer Ventures led the round. Datadog had offered to acquire Upwind at that same valuation, with no premium over it. Upwind declined and will remain independent.