Upwind adds $100M to its round at the same $3.8B valuation

Bloomberg reported Upwind's $400M financing on October 28th; TSN says it adds about $100M to the $300M round reported in September, leaving the valuation at $3.8B.

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Primary source: Bloomberg Technology

Why it matters

The financing backs Amiram Shachar's second cloud company and its runtime-first security thesis. Bloomberg reported a $3.8 billion valuation, compared with the $1.5 billion Globes associated with Upwind's January 2026 Series B. Globes reported $30 million in ARR in June 2026 and named Echo Software and Sweet Security among its competitors. Techzine reported on October 28th that Upwind had finalized the $400 million financing.

A person wearing a backpack walks through glass doors toward large industrial buildings; “RW” appears on a window.

**Upwind, the cloud-security startup co-founded by CEO Amiram Shachar, has expanded its previously reported financing to $400 million at a $3.8 billion valuation, according to Bloomberg's October 28th report.…

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