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Latham & Watkins Advises Bessemer Venture Partners in US$250 Million Series B Investment in Upwind Security - Latham & Watkins

Reported by Lw ·Legaldesire
Feb 11, 2026· 2 min read
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Key Takeaways
  • • Upwind Security closed a US$250 million Series B funding round led by Bessemer Venture Partners, valuing the cloud security company at US$1.5 billion and bringing total funding to US$430 million.
  • • The round includes participation from Salesforce Ventures and Picture Capital, with backing from existing investors Greylock, Cyberstarts, Leaders Fund, Craft Ventures, TCV, Alta Park, Cerca Partners, Swish Ventures, and Penny Jar Capital.
  • • Upwind positions itself as a "runtime-first cloud security leader," focusing on enabling enterprises to deploy AI and real-time cloud applications with enhanced security infrastructure.
  • • Latham & Watkins represented Bessemer Venture Partners in the transaction, with a team led by Bay Area partner Brian Patterson alongside associates Eduard Grigoryan and Jaime Fong.
  • • The Series B marks the launch of Upwind's "Next Wave" growth phase, targeting enterprise-wide adoption of runtime-first cloud security solutions globally.
Summary
Upwind Security, a runtime-first cloud security platform, has secured US$250 million in Series B funding, establishing a valuation of US$1.5 billion and expanding its total capital raised to US$430 million. The round was led by Bessemer Venture Partners, with strategic participation from enterprise software investor Salesforce Ventures and venture capital firm Picture Capital. The company's existing investor base—comprising Greylock, Cyberstarts, Leaders Fund, Craft Ventures, TCV, Alta Park, Cerca Partners, Swish Ventures, and Penny Jar Capital—also participated in the financing, demonstrating continued confidence in the platform's market trajectory.

Latham & Watkins LLP served as legal counsel to Bessemer Venture Partners on the transaction. The firm's corporate team, led by Bay Area-based partner Brian Patterson with support from associates Eduard Grigoryan and Jaime Fong, structured the investment as part of the firm's broader venture capital practice. This engagement underscores Latham & Watkins' role as preferred counsel to leading institutional venture investors executing significant growth-stage financings.

Upwind's funding announcement coincides with the launch of what the company calls "The Next Wave," a strategic growth initiative designed to scale runtime-first cloud security infrastructure for enterprise applications. The company positions its technology as foundational to a new class of AI-driven and real-time cloud applications, addressing the security requirements of enterprises modernizing their computational infrastructure. The substantial capital raise and robust investor syndicate suggest institutional confidence in both the market opportunity and Upwind's competitive positioning within the broader cloud security landscape.

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Lw Latham & Watkins Advises Bessemer Venture Partners in US$250 Million Series B Investment in Upwind Security - Latham & Watkins Legaldesire Latham & Watkins Advises Bessemer Venture Partners in the Sale of Its Portfolio Company Fin to Salesforce for US$3.6 Billion