Upwind Turns Down Datadog, Raises $400M at $3.8B Value

Upwind, an Israeli company with a San Francisco base that protects computer networks from hackers, announced a $400 million Series C investment round on October 28, 2026. Bessemer Ventures led it, valuing the company at $3.8 billion. Datadog had offered to buy Upwind at that same value, with no extra payment. Upwind declined and will stay independent.