Cloud-security startup Upwind raises $400 million, company says
Upwind says the Bessemer-led financing values it at $3.8 billion and will fund product and engineering expansion.
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Upwind says the Bessemer-led financing values it at $3.8 billion and will fund product and engineering expansion.
Cloud-security startup Upwind said on October 28 that it had raised $400 million in a round led by Bessemer Venture Partners, valuing the company at $3.8 billion. Reuters carried the company’s announcement in a report published by CNA.
Upwind calls the financing its Series C round and says the money will support product and engineering growth. It plans to make its platform easier to use and expand security coverage for identity, data and superintelligence (SI) systems.
Founded in 2022, Upwind says its total funding now exceeds $800 million. Its disclosed funding history shows how the latest round compares with the previous two.
| Round | Amount raised | Valuation |
|---|---|---|
| December 2024 | $100 million | About $900 million |
| Series B, about nine months before the latest round | $250 million | Not disclosed |
| Series C, October 28, 2026 | $400 million |
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The latest figure is the first disclosed valuation above $1 billion across these rounds. Because the Series B valuation was not disclosed, the date when Upwind first passed that threshold remains unknown.
Existing investors Greylock Partners, Cyberstarts, Craft Ventures, Salesforce Ventures, Alta Park and TCV participated, while Canapi Ventures joined as a new backer. Upwind also names Picture Capital, Swish Ventures, Cerca Partners, Penny Jar and Leaders Fund among the participating existing investors.
In its January 26, 2026 investment note, Bessemer identified Amiram Shachar as Upwind’s co-founder and chief executive. The investor said Upwind uses sensors inside running cloud applications to collect activity, then combines that information with details about the systems and identities involved. This helps security teams determine whether an attacker could reach a weakness and how an attack could move through the environment.
In explaining its earlier Series B investment, the investor noted that this focus on running applications helps teams distinguish exploitable risks from less relevant alerts, reducing the security work those alerts generate.
Upwind names HedgeServ as a customer. In a testimonial published by Upwind, the customer’s security chief said seeing what was actually running, rather than only scan results, changed which risks the team spent time on.
Upwind says customers already use three software agents—programs that carry out security tasks—to assemble investigations from logs and other data, test whether weaknesses can be exploited, and identify fixes across many security findings. It also says it has launched a cybersecurity research lab.
The next development work includes SI sensors for endpoint devices, scanners for SI agents and their skills, and a redesigned map of the assets in a customer’s environment. Upwind has not announced rollout dates for those tools or for its broader expansion into identity, data and SI security.
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