Upwind Security Funding Round

10/28/2026

Venture Equity

$400,000,000

Series C

Upwind will use the $400 million Series C funding to accelerate product development and engineering, expand its cloud and AI security platform, and strengthen its go-to-market operations. The investment will support the development of AI-powered security sensors for endpoints, scanners for AI agents and skills, improved cloud asset visibility, and AI agents that investigate threats, verify vulnerabilities, and help remediate security risks. The company also plans to invest in its AI cybersecurity research labs and expand its security capabilities across identity, data, cloud infrastructure, and AI systems to help enterprises detect and respond to increasingly sophisticated cyber threats in real time.

Private & Independent

Security

140 New Montgomery St
San Francisco, CA 94105
US

Undisclosed

Upwind is a San Francisco-based cloud security startup. It raised $400 million in a Series C led by Bessemer Venture Partners, with existing investors including Greylock Partners and Craft Ventures, at a $3.8 billion valuation. The company chose to stay independent after Datadog approached it, because Datadog did not offer a premium over that valuation, according to a source cited by TechCrunch. Its stated mission is to secure cloud and AI for the world. Upwind calls its approach "runtime" security, meaning it detects and remediates attacks and vulnerabilities in active services in real time. It was founded in 2022 by Amiram Shachar, and its customers include Roku and Nubank.