Upwind

Cybersecurity · Cloud Security · AI Security

Funding

Upwind raises $300M Series C, valuation triples to $3.8B

The round bets that a rival's sudden departure from the market, not proven revenue growth, justifies the price.

• Upwind Security raised $300 million in a Series C round co-led by Bessemer Venture Partners and TCV, valuing the cloud-security startup at $3.8 billion, up from about $1.5 billion in January 2026.
• Upwind builds a runtime cloud-security platform that continuously maps live cloud assets using the Linux eBPF feature, refreshing its picture of a customer's environment every 30 seconds.
• The raise comes months after Google's $32 billion acquisition of rival Wiz pulled the market's leading independent cloud-security vendor off the board, a gap investors are betting Upwind can fill.
• Upwind's annual recurring revenue grew from under $20 million to an estimated $50-60 million in about six months, while its valuation climbed from roughly $900 million in late 2025 to $3.8 billion now.
• CEO Amiram Shachar and his three co-founders previously built Spot.io, a cloud cost-optimization company NetApp acquired for about $450 million in 2020.
• The five-month climb from $1.5 billion to $3.8 billion shows investors pricing a rival's absence as much as Upwind's own growth, a bet that only holds if revenue keeps compounding at its current pace.