Upwind passed on a Datadog sale, then raised $400 million

Upwind had a potential buyer and a new funding round in play at the same time. The cloud security startup raised $400 million in Series C funding at a $3.8 billion valuation after deciding not to sell to Datadog, according to TechCrunch. The report says the attempted offer did not exceed the valuation investors set for the round. That detail comes from a person familiar with the company, not a public offer document.

The scale is the headline, but the decision is the story. TechCrunch reports that Upwind was adding $20 million to $30 million in annual recurring revenue each quarter and was projected to end the year near $90 million. Those are sourced estimates, not audited results. The startup had closed a $250 million financing nine months earlier at a $1.5 billion valuation.

Walking away from a strategic buyer can signal confidence in independence, but it also raises the execution bar. Security is a crowded market, and acquisition paths can change. TechCrunch says Upwind continues to draw acquisition interest. The evidence to watch is whether the company turns new capital and reported growth into durable customer value, not whether another valuation headline appears.