Neo Raises $100M to Secure Enterprise AI Agents

Ex-SentinelOne President's Startup Neo Emerges With $100M to Police AI Agents in the Enterprise

Andreessen Horowitz and Bessemer co-led the Series A for a platform that inventories, monitors and controls the AI agents multiplying inside corporate software stacks.

Jul 21, 2026Source: Neo

Neo, an American-Israeli security startup headquartered in Boston, emerged from stealth Monday, July 20, with $100 million in total funding to tackle what it argues is the next great enterprise blind spot: the AI agents proliferating inside corporate software.

The round

The financing splits into a $75 million Series A co-led by Andreessen Horowitz and Bessemer Venture Partners, with participation from Craft Ventures and Merlin Ventures, on top of a previously undisclosed $25 million seed completed in 2025. Valuation was not disclosed. The money goes to scaling engineering and go-to-market.

The team

The founders are SentinelOne DNA: CEO Nick Warner was SentinelOne's president and COO and helped take it public in 2021, after stints at Cylance, McAfee and Forcepoint. CPO Shlomi Salem led detection engineering at SentinelOne for nearly a decade. CTO Eran Shirazi co-founded EasySend and previously led a vulnerability-research group in Israel's Unit 8200.

What 'Agentic Software Control' means

Neo's platform maintains a real-time inventory of AI agents, AI-enabled applications, browsers, identities and traditional software across the enterprise; scores their risk and capabilities; attributes behavior to specific agents; and enforces policy on what they may do. The pitch leans on a stark Gartner stat: 5% of enterprise apps had agentic capabilities in 2025, expected to hit 40% by the end of 2026. Security teams built for human users and static software, Neo argues, cannot see — let alone govern — that population.

A category being born in real time

The timing is on the nose: Neo launched the same day Pillar Security disclosed sandbox escapes in four major AI coding agents, and days after a fully autonomous AI agent breached Hugging Face's infrastructure. Agent security is compressing from thesis to product category in a single quarter, and the biggest venture firms are paying nine figures for position.

Why It Matters

When a16z and Bessemer put $100M behind agent governance before the product category has a Gartner quadrant, they are betting agent sprawl becomes the shadow-IT crisis of the late 2020s. The SentinelOne pedigree matters too: endpoint security's playbook — inventory, detect, enforce — is being ported wholesale to a world where the 'endpoints' are autonomous software actors that multiply faster than laptops ever did.