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Cloud security startup Upwind raises $400 million, valued at $3.8 billion

By Thomson Reuters Oct 28, 2026 | 9:11 AM

Oct 28 (Reuters) – Cloud security startup Upwind on Wednesday said it ​raised $400 million in ‌a funding round led by Bessemer Venture Partners, valuing it at $3.8 billion.

Here ‌are ​some more ⁠details:

• The startup ⁠was valued at about $900 million in a December 2024 raise of $100 ​million; its $250 million Series B funding ⁠nine months ⁠ago came without ​a disclosed valuation

• The ​latest round, which will fund ‌product expansion, brings the company’s total funding to over $800 million ⁠since its founding in 2022

• Existing investors including Greylock ⁠Partners, ‌Cyberstarts, Craft Ventures, ⁠Salesforce Ventures, Alta ​Park ‌and TCV also ​participated, while ⁠Canapi Ventures joined as a new backer

(Reporting by Anhata Rooprai in Bengaluru; Editing by Vijay ​Kishore)