Security company behind NodeZero, an autonomous pentesting agent that attacks an organisation's own production systems to find exploitable attack paths.
Per Horizon3's Oct 20 2026 release, NodeZero 'autonomously tests defenses at machine speed, safely uncovers and prioritizes exploitable attack paths, instantly verifies fixes, and drives a continuous hack, fix, verify loop' across internal, external, cloud, Kubernetes and web-app targets in production; the company has added 'agentic remediation workflows via blue-team agents'.
Self-service subscription licensing for continuous pentesting, sold largely through a channel-first model (about 80% of customers moved from annual to monthly tests, 40% to weekly, per the release)
Founded — · Team Not disclosed in the Oct 20 2026 release; 7,000+ customer organisations and 350,000+ production tests (company)
Last verified 2026-11-01
Ownership checked 2026-11-01
| Metric | Value | As of | Source | Checks |
|---|---|---|---|---|
| ARR self-reported | surpassed $100 million in annual recurring revenue (ARR) underpinned by 95% gross dollar retention (GDR) and 125% net dollar retention (NDR); ARR grew more than 120% year over year; about five years after crossing $1 million ARR in September 2021 | 2026-10-20 | Horizon3 press release, Business Wire (Oct 20 2026) | n/a |
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