Neo has emerged from stealth with $100m in funding to help enterprises secure the rapid spread of AI agents across their software stacks.
The round was led by Andreessen Horowitz and Bessemer Venture Partners, with Craft Ventures and Merlin Ventures also participating.
The capital will be deployed to accelerate the growth of Neo’s go-to-market and engineering functions, as businesses ramp up security programmes to keep pace with agentic software adoption.
The company argues that agentic adoption is reshaping enterprise environments more quickly than conventional security programmes can respond. Employees are bringing in new AI tools from the bottom up, while established vendors are layering agentic functions into applications that have already been cleared for corporate use.
This leaves SecOps teams responsible for autonomous software running inside approved applications, frequently without the oversight required to govern it. Gartner figures cited by the company suggest just 5% of enterprise applications carried agentic capabilities in 2025, a share expected to hit 40% by the close of 2026.
Legacy security architectures, Neo contends, were designed for deterministic applications, human operators and predictable data flows. Agentic systems break that model, acting independently, imitating user behaviour, inheriting permissions, chaining tools and traversing workflows in ways that look legitimate to older defences.
Neo’s answer is a real-time control layer for evolving software stacks. The platform provides five core capabilities: a software inventory covering AI agents, AI-enabled applications, plugins, extensions, MCP servers and traditional software, enriched by Neoverse, its continuously updated knowledge base; capability and risk intelligence that shows what software can do and access; real-time attribution that ties every action to the responsible human, agent, application or identity; granular controls allowing group- or identity-specific policies for tool calls, API access, data movement and agentic workflows; and native enforcement that blocks risky activity and malicious models without relying on a separate tool.
The founding team brings extensive experience scaling cybersecurity businesses. CEO and co-founder Nick Warner built SentinelOne’s go-to-market organisation and, as COO, led the firm’s 2021 public listing, following senior positions at Cylance, McAfee and Forcepoint.
Co-founder Shlomi Salem spent over a decade leading detection engineering at SentinelOne, where he also co-led its in-house threat research team. Co-founder Eran Shirazi previously co-founded customer experience firm EasySend and led vulnerability research at the IDF’s Unit 8200.
Neo CEO and co-founder Nick Warner said, “Enterprise security was built for a world where software behaved predictably. That world is changing fast. AI agents and agentic capabilities are being embedded into browsers, developer tools, SaaS platforms, and traditional applications, giving software the ability to reason, act, invoke tools, and move through workflows with valid user permissions.
“Neo gives enterprises the real-time control layer they need to understand what agentic software can do, govern how it behaves, and secure adoption without slowing down the business.”
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