Aryon Security, an Israeli cloud-security startup, has raised $29M in a Series A round to push a prevention-first approach to securing the cloud. The round, which the company says brings its total funding to $38M, was led by US-based Brightmind Partners.
The investor list is the headline. Shlomo Kramer’s Skinos Ventures, Datadog, Blumberg Capital, and Viola Ventures took part, alongside a roster of cybersecurity heavyweights as angels: CrowdStrike chief executive George Kurtz, investor Robert Herjavec, and Armis co-founders Yevgeny Dibrov and Nadir Izrael. Several of them built or run the very incumbents Aryon is taking on.
Founded in late 2024 by alumni of Matzov, an elite Israeli military cyber unit, Aryon was built on lessons from helping secure Project Nimbus, Israel’s $7.2bn national cloud programme.
“For years, the industry has focused on identifying risks faster,” said co-founder and chief executive Ron Arbel. “We believed the future lay in preventing them altogether.”
Prevention over detection
Most cloud-security tools, the category that produced giants like Wiz and challengers like Upwind, scan live environments and flag misconfigurations and exposed data after deployment. Aryon calls its product a “Cloud Security Enforcement Platform” and says it blocks risky changes before they reach production.
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One customer, it says, had more than 200 misconfigurations prevented in a single week.
The bet is that “prevention” can become a category rather than a feature in an already crowded, well-funded market. The pedigree of Aryon’s backers, several of whom know that market from the inside, suggests the thesis has buy-in where it counts.
Arbel co-founded the company with CTO Ariel Litmanovich and CPO Yair Ladizhensky.
The round lands as enterprises pour money into securing cloud and AI workloads, a pressure even regulators are now applying. Aryon has not disclosed a valuation.
The open question for any prevention pitch is whether blocking changes before production saves more than it slows engineering teams down, the trade-off that has tripped up security tools before.
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