AI security firm Upwind raises $400M at $3.8B valuation, focusing on autonomous AI agent risk mitigation as revenue quadruples.
VC & Fundraising ·
Upwind Security closed a $400 million Series C funding round at a $3.8 billion valuation, led by Bessemer Venture Partners, which had also backed the company's prior $250 million raise in January. The valuation represents roughly a 2.5x increase from the earlier round. Canapi Ventures entered as a new backer, while all existing investors participated again in the round.
The cloud and AI security platform reported that revenue expanded fourfold during 2026, though specific financial figures were not released. Upwind intends to deploy capital toward product development, engineering expansion, and new capabilities including endpoint sensors and scanners designed to monitor AI agents and their functions, alongside offerings in identity, data, and AI security. The company serves hundreds of organizations spanning sectors including automotive, financial services, and software development.
Upwind's funding arrives amid heightened scrutiny of AI model behavior in production environments. The company operates by collecting runtime intelligence from active cloud workloads, APIs, and autonomous agents rather than relying on periodic snapshots, and integrates with major cloud providers including AWS, Azure, Google Cloud, and Oracle Cloud. What remains unclear is whether the company plans specific announcements regarding product launches or customer wins enabled by this capital.