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# Update: Upwind closes $400M Series C at a $3.8B valuation
- URL: https://www.enterprisey.com/update-upwind-closes-400m-series-c-at-a-3-8b-valuation/
- Published: 2026-10-28T16:43:28.000Z
- Updated: 2026-10-28T16:43:28.000Z
- Description: Upwind formally closed its Series C at $400M, $100M more than the round reported in September, at a $3.8B valuation led by Bessemer.
- Author: Enterprisey Admin
- Tags: News, Funding, Security

Cloud security company Upwind has formally announced a $400M Series C led by Bessemer Venture Partners at a $3.8B valuation. That is $100M more than the $300M round reported in early September; the company added the extra capital before closing. ([SiliconANGLE](https://siliconangle.com/2026/10/28/cloud-security-startup-upwind-raises-400m-at-3-8b-valuation-as-revenue-quadruples/?ref=enterprisey.com); [Globes](https://en.globes.co.il/en/article-upwind-raises-400m-at-38b-valuation-1001561122?ref=enterprisey.com))

Canapi Ventures joins as a new investor, alongside returning backers including Cyberstarts, Greylock, Craft Ventures and Salesforce Ventures. Upwind says its revenue has quadrupled so far in 2026 and that it will spend the money on product development and go-to-market. Chief executive Amiram Shachar said the company is building AI sensors for endpoints and scanners for agents and skills. ([Help Net Security](https://www.helpnetsecurity.com/2026/10/28/upwind-400-million-series-c-funding/?ref=enterprisey.com); [SiliconANGLE](https://siliconangle.com/2026/10/28/cloud-security-startup-upwind-raises-400m-at-3-8b-valuation-as-revenue-quadruples/?ref=enterprisey.com))