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HiddenLayer, an AI security startup, has successfully raised $100 million in a Series B funding round led by Delta-v Capital, with participation from several notable investors including Ten Eleven Ventures and Microsoft’s M12. The Austin-based company specializes in developing tools to safeguard AI models and workflows from various threats, including adversarial attacks and malicious code injections. This significant funding comes as HiddenLayer reports a tenfold increase in annual recurring revenue, reaching tens of millions of dollars, primarily driven by new customers in the financial services and tech sectors, as well as contracts with the Department of Defense. The company's technology has evolved to address emerging risks associated with AI deployments, such as prompt injection and agent manipulation, while also focusing on verifying open-source models. The new capital will facilitate HiddenLayer's expansion into Europe and the EMEA region, reflecting a broader trend in the AI security market, which is projected to grow to $2.83 billion this year and nearly $4.78 billion by 2027, according to Gartner analysts. No further timeline was disclosed at the time of publication.
AIInsider By James Dargan 12 hours ago AI Funding & Investment AI AI-driven platform capital markets Delta-v Capital funding
AI security startup HiddenLayer has successfully raised $100 million in a Series B funding round led by Delta-v Capital. This funding comes as enterprises increasingly prioritize securing their AI deployments, with Gartner projecting a significant rise in spending on AI security tools, expected to reach nearly $4.78 billion next year. The surge in demand for AI security solutions is driven by the growing recognition of potential vulnerabilities in AI models and workflows. HiddenLayer's co-founder and CEO, Chris Sestito, noted that the company's annual recurring revenue has increased more than tenfold over the past year, primarily due to new customer acquisitions in sectors like financial services and large tech companies. Looking ahead, HiddenLayer plans to utilize the new funding to expand its product offerings and enhance its sales and distribution efforts. The company aims to address emerging threats such as prompt injection and malicious tool use, while also exploring opportunities in the European and EMEA markets. No further timeline was disclosed at the time of publication.
TechCrunch By Ram Iyer Sep 02, 2026 AI Fundraising Security Delta-v Capital HiddenLayer M12RSF defines a common language for robot service capability, lifecycle operations, certification pathways, and service-provider networks.
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