Aryon Security, a cloud security enforcement platform, has closed a $29m Series A funding round, bringing its total capital raised to $38m just over a year after leaving stealth.
The round was led by Brightmind Partners, with participation from Datadog Ventures, Skinos Ventures (a new fund established by Shlomo Kramer), and returning seed investors Blumberg Capital and Viola Ventures. The raise also drew backing from a group of prominent angel investors and serial entrepreneurs, among them CrowdStrike CEO George Kurtz, entrepreneur Robert Herjavec, Armis CEO Yevgeny Dibrov, and Armis CTO Nadir Izrael.
Brightmind Partners was co-founded by Stephen Ward, who previously served as CISO at both The Home Depot and TIAA, and before that held a managing director role at Insight Partners with a focus on cybersecurity investments. Datadog joins the round as a strategic backer, extending its existing commitment to lowering security complexity across the full cloud risk lifecycle, from prevention through to remediation.
Aryon’s platform is designed to address a fundamental shortcoming in how cloud security has traditionally operated. As AI accelerates infrastructure changes and increases cloud complexity, security teams find themselves unable to match the pace at which new risks are introduced into their environments.
By the time most vulnerabilities are detected, they are already live in production, trapping organisations in an ongoing cycle of remediation. Aryon’s approach shifts that dynamic by allowing enterprises to enforce security policies before risks reach production, applying consistent controls across the whole of their cloud infrastructure. The company states this model can help businesses avoid up to 95% of conventional cloud security posture management (CSPM) alerts while cutting both risk exposure and operational overhead.
Since coming out of stealth in 2025, Aryon has gained a foothold among mid-to-large enterprises operating in highly regulated sectors, including healthcare, banking, insurance, telecommunications, shipping, and industrial operations.
The platform addresses three key use cases: securing cloud migration and merger and acquisition activity so that environments are protected by design from the outset; improving efficiency in mature and complex cloud setups by preventing the vast majority of new security gaps from any source, whether human error or automated pipelines; and helping organisations that have recognised prevention as the only scalable path to cloud security to operationalise that approach at enterprise scale, with native support for exception management processes.
Aryon Security CEO and co-founder Ron Arbel said, “We built Aryon because cloud security needs to move from ‘know misconfigurations’ to ‘NO misconfigurations’. Infrastructure is changing faster than security teams can manually keep up with, and enterprises can no longer afford to discover risks only after they are already in production. Aryon makes prevention operational, scalable, and safe for the world’s most complex cloud environments.”
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