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 emerging from stealth.
The round was led by Brightmind Partners, with additional investment from Datadog Ventures, Skinos Ventures (the new fund from Shlomo Kramer), and returning seed backers Blumberg Capital and Viola Ventures. The raise also drew support from high-profile angel investors, including CrowdStrike CEO George Kurtz, 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 as a managing director at Insight Partners, where he focused on cybersecurity investments. Datadog’s participation as a strategic investor reflects the company’s broader aim to reduce security complexity across the full cloud risk lifecycle, spanning prevention through to remediation.
Aryon’s platform is designed to enforce security policies before risks ever reach production environments, applying consistent controls across an organisation’s entire cloud infrastructure. The company says this preventive approach can help enterprises eliminate up to 95% of conventional cloud security posture management (CSPM) alerts, meaningfully reducing both risk exposure and operational overhead.
The business has built momentum among mid-to-large enterprises in heavily regulated sectors since leaving stealth in 2025, with customers spanning healthcare, banking, insurance, telecommunications, shipping, and industrial industries. Its platform addresses three core scenarios: organisations undertaking cloud migration or M&A activity, who use it to ensure secure-by-design environments; enterprises with mature cloud infrastructure looking to contain the volume of new security gaps from any source, whether manual or automated; and organisations seeking to operationalise prevention as a scalable, ongoing security strategy.
Brightmind Partners co-founder Stephen Ward said, “Having served as CISO for some of the world’s largest enterprises, I’m seeing firsthand how AI is increasing cloud complexity while also enabling attackers to exploit gaps faster than ever before. In this post-Mythos world, the traditional ‘detect and remediate’ model is no longer enough. Instead of allowing security gaps to reach production only to be remediated weeks or months later, organizations need an enforcement layer that prevents risks from going live in the first place. After working closely with Ron, Ariel, and Yair over the past year, my conviction in Aryon’s vision has only strengthened.”
Datadog Ventures head of ventures Bharat Sajnani said, “AI and rapid infrastructure changes are introducing risk to cloud security in a way that we have never seen before – and faster than reactive remediation efforts can effectively manage. Aryon’s preventive approach complements how Datadog already helps customers detect and resolve risks in production so that they can ship with control and confidence. We’re proud to support the Aryon team and all the important work they are doing.”
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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