Austin-based HiddenLayer raised a $100 million Series B announced September 2, 2026, led by Delta-v Capital with Ten Eleven Ventures, Morgan Stanley, Microsoft's M12 and Booz Allen Hamilton participating. It sells AI-security products spanning model discovery, runtime protection, attack simulation and supply-chain security.
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HiddenLayer nabs $100M Series B as enterprises rush to secure AI deployments
Why this matters for founders
Enterprise buyers are budgeting for AI security controls; startups selling into them should expect security-team review of how models are protected, and AI vendors can differentiate by adopting these controls early.
Source: TechCrunch
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