Key Takeaways
- • Upwind raised $300 million in Series C funding at a $3.8 billion valuation, more than doubling its previous valuation of $1.5 billion from January 2026.
- • The funding round was led by Bessemer Venture Partners and TCV, with participation from Salesforce Ventures and other prominent institutional investors.
- • The valuation increase from $1.5 billion to $3.8 billion in nine months reflects strong investor appetite for cloud security solutions in the current market environment.
- • Upwind's latest raise follows a $250 million Series B funding round closed in January 2026, demonstrating accelerating capital deployment in the cloud security sector.
Summary
Upwind, a San Francisco-based cloud security company, has closed a $300 million Series C funding round at a valuation of approximately $3.8 billion, according to the company announcement dated September 13, 2026. The round marks a significant milestone in the company's growth trajectory, reflecting substantial investor confidence in its market position and business model.
The funding represents a dramatic revaluation relative to the company's Series B round closed just nine months earlier in January 2026, when Upwind raised $250 million at a $1.5 billion valuation. The more than 150% increase in valuation in a compressed timeframe signals strong operational momentum and market demand for cloud security solutions.
The Series C funding round attracted participation from top-tier venture capital firms, with Bessemer Venture Partners and TCV leading the round alongside Salesforce Ventures and other institutional investors. The involvement of Salesforce Ventures, the corporate venture arm of enterprise software giant Salesforce, alongside dedicated venture firms underscores the strategic importance of cloud security in enterprise technology infrastructure.
Upwind's rapid capital accumulation—raising $550 million across two rounds within a nine-month period—reflects broader market trends favoring cloud security startups as organizations prioritize infrastructure protection amid expanding cloud adoption.
The funding represents a dramatic revaluation relative to the company's Series B round closed just nine months earlier in January 2026, when Upwind raised $250 million at a $1.5 billion valuation. The more than 150% increase in valuation in a compressed timeframe signals strong operational momentum and market demand for cloud security solutions.
The Series C funding round attracted participation from top-tier venture capital firms, with Bessemer Venture Partners and TCV leading the round alongside Salesforce Ventures and other institutional investors. The involvement of Salesforce Ventures, the corporate venture arm of enterprise software giant Salesforce, alongside dedicated venture firms underscores the strategic importance of cloud security in enterprise technology infrastructure.
Upwind's rapid capital accumulation—raising $550 million across two rounds within a nine-month period—reflects broader market trends favoring cloud security startups as organizations prioritize infrastructure protection amid expanding cloud adoption.
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