Most cyber vendors sell more alarms. GreyNoise built thousands of patient decoys, learned the rhythm of indiscriminate attacks, and made a business out of the far more useful answer: not this one.
Torq started with a product the market would not reliably buy. Its founders followed the one group already pulling it off the shelf - security teams - and turned that failed sales motion into a $1.2 billion lesson in listening.
7AI is a Boston-based cybersecurity company building an agentic security platform that deploys autonomous, reasoning-based AI agents to take over the repetitive investigation work that overwhelms security operations centers. Founded in 2024 by Cybereason co-founders Lior Div and Yonatan Striem-Amit, the company ingests alerts from a customer's existing security tools, triages and investigates them at machine speed, and surfaces only real threats with full context and recommended actions - cutting mean time to respond from hours to minutes and eliminating the bulk of false positives. In December 2025 it raised a $130M Series A, described as the largest cybersecurity Series A on record.
Radiant Security builds an adaptive, agentic AI SOC platform that triages, investigates, and helps respond to every security alert a team receives - regardless of source, complexity, or novelty. Founded in 2021 by security veterans Shahar Ben-Hador and Barry Shteiman, the company aims to cut the alert noise that overwhelms security operations centers, escalating only real threats to human analysts and reducing analyst workload by up to 98%. It also folds in integrated log management to cut SIEM storage costs.
Vectra AI is a San Jose-based cybersecurity company that uses artificial intelligence to detect, investigate, and stop active cyberattacks across hybrid and multi-cloud environments. Its platform - built around what the company calls Attack Signal Intelligence - watches network, identity, public cloud, and SaaS behavior to surface real attacks in progress while filtering out the noise that overwhelms security teams. Founded in 2011 and led by CEO Hitesh Sheth, Vectra has raised roughly $425M, reached a $1.2B valuation, and was named a Leader in the 2026 Gartner Magic Quadrant for Network Detection and Response.
Dropzone AI builds an autonomous AI SOC analyst that investigates 100% of security alerts around the clock, mimicking the reasoning of an expert human analyst across phishing, endpoint, network, cloud, identity, and insider-threat domains. Founded in 2022 by former ExtraHop AI lead Edward Wu, the Seattle company replaces playbook-driven busywork with end-to-end investigations and high-fidelity reports, letting overwhelmed security teams focus on real threats. It has raised $57.35M to date, including a $37M Series B in July 2025.
SentinelOne is an American cybersecurity company that builds the AI-powered Singularity Platform, autonomous software that detects, hunts, and responds to attacks across endpoints, cloud, identity, and data in real time. Founded in 2013 and headquartered in Mountain View, California, it pioneered machine-learning-driven endpoint protection that works without human intervention and now competes head-to-head with CrowdStrike and Microsoft in the enterprise security market. After the largest cybersecurity IPO in history in 2021, the company crossed $1 billion in annual recurring revenue in 2025.
Simbian is a Mountain View startup building autonomous, self-improving AI agents for security operations. Its platform pairs a Context Lake of institutional knowledge with TrustedLLM-powered agents that triage alerts, hunt threats, run pentests, and manage firewalls 24/7 — built to counter AI-powered attacks that move faster than humans can react.