Observed Signal · Sep 2, 2026 · Market Signal · Source: Delta-v Capital · Impact: 3.5/5
Why We Invested in HiddenLayer
Delta-v Capital announces a new investment in HiddenLayer, a cybersecurity company, as detailed in a new blog post by Dan Williams, Connor Heard, and Nikki Shah.
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Connected Companies & Entities
1 Entity mappedRelated Market Signals & Shifts
Recent verified developments and strategic activity across this market segment.
HiddenLayer raises $100M for enterprise AI security
AI security startup HiddenLayer has raised $100 million in a Series B round led by Delta-v Capital, with participation from Ten Eleven Ventures, Morgan Stanley, Microsoft's M12, and Booz Allen Hamilton. The Austin-based company protects AI models, agents, and workflows from adversarial attacks, vulnerabilities, and malicious code injections. CEO Chris Sestito said annual recurring revenue grew more than 10x over the past year and now stands in the 'tens of millions' of dollars, with over 90% of growth driven by new customers. HiddenLayer has expanded its product scope from traditional machine learning to generative AI and agentic systems, addressing prompt injection, agent manipulation, and malicious tool use. Gartner estimates companies will spend $2.83 billion on AI security products in 2026 and nearly $4.78 billion in 2027. The new capital will support sales, distribution, engineering, and expansion into Europe and EMEA.
StrongestLayer Raises $4.1M, Total Seed $9.3M
StrongestLayer, an AI-native email security company, raised $4.1 million in new funding — bringing its total seed to $9.3 million — in a round led by Inovia Capital with participation from Sorenson Capital, LaunchPod, Alumni Ventures and investor Chris Key (formerly Mandiant's CPO). The startup says its reasoning-based architecture inspects intent rather than relying on signatures or reputation, and that production deployments have grown more than eightfold since its initial funding a year earlier. The new capital will be used for go-to-market and platform expansion as StrongestLayer prepares for a planned Series A.
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