Horizon3.ai NodeZero vs ReliaQuest GreyMatter Agentic Teammates
Quick answer
Horizon3.ai NodeZero (autonomous pentesting) (Horizon3.ai) and ReliaQuest GreyMatter Agentic Teammates (GreyMatter for Government) (ReliaQuest) are both listed in the Security category of Agent Index.
They share no framework tags in our dataset.
This is not a ranking.
Horizon3.ai NodeZero (autonomous pentesting) (Horizon3.ai) and ReliaQuest GreyMatter Agentic Teammates (GreyMatter for Government) (ReliaQuest) are both listed in the Security category of Agent Index. They share no framework tags in our dataset. Only ReliaQuest GreyMatter Agentic Teammates (GreyMatter for Government) is tagged for FedRAMP, TX-RAMP.
| Field |  Horizon3.ai NodeZero (autonomous pentesting) |  ReliaQuest GreyMatter Agentic Teammates (GreyMatter for Government) |
|---|---|---|
| Vendor | Horizon3.ai | ReliaQuest |
| HQ | United States · North America | United States · North America |
| Primary category | Security | Security |
| Also listed in | Security | Security, Compliance |
| Summary | Autonomous pentesting platform that runs unlimited self-directed internal, external, cloud, Kubernetes and AD pentests, plans attack paths, guides remediation and re-tests to verify fixes. | Agentic AI security operations platform whose six persona-based Agentic Teammates investigate and triage alerts and execute approved containment actions; GreyMatter for Government is FedRAMP Authorized (Moderate). |
| Frameworks (vendor-stated) | — | FedRAMP, TX-RAMP |
| FedRAMP (Marketplace, listing scope) | — | GreyMatter for Government · FedRAMP Authorized · FR2428740308 · Moderate · authorized 2026-07-08 |
| Frameworks (vendor-claimed) | FedRAMP | FedRAMP, TX-RAMP, FISMA, CMMC, SOC 2, ISO 27001, HIPAA, PCI DSS |
| Capabilities / tasks | pen test management, attack surface, exposure management, vulnerability management | security operations, alert triage, incident response, threat detection, government compliance |
| Pricing (as published) | Not published | Not published (vendor says pricing is based on endpoint count with no AI usage meter). |
| Pricing model | quote | quote |
| Primary source | https://horizon3.ai/nodezero/ | https://reliaquest.com/security-operations-platform/greymatter-agentic-teammates/ |
| Last checked | 2026-10-18 | 2026-10-18 |
| Official site | https://horizon3.ai/nodezero/ | https://reliaquest.com/security-operations-platform/greymatter-agentic-teammates/ |
FAQ (from this dataset)
What is the difference between Horizon3.ai NodeZero and ReliaQuest GreyMatter Agentic Teammates?
Both are listed under Security. They share no task tags in this dataset. Horizon3.ai NodeZero-only tasks: pen-test-management, attack-surface, exposure-management, vulnerability-management. ReliaQuest GreyMatter Agentic Teammates-only tasks: security-operations, alert-triage, incident-response, threat-detection, government-compliance. Differences are from stored category and task tags, not a ranking.
Which one publishes pricing?
Horizon3.ai NodeZero (autonomous pentesting): Not published ReliaQuest GreyMatter Agentic Teammates (GreyMatter for Government): Not published (vendor says pricing is based on endpoint count with no AI usage meter).
Where are Horizon3.ai NodeZero and ReliaQuest GreyMatter Agentic Teammates headquartered?
Horizon3.ai NodeZero (autonomous pentesting) publishes HQ in United States. ReliaQuest GreyMatter Agentic Teammates (GreyMatter for Government) publishes HQ in United States.
Also in this use case
Other verified listings that share a task tag or use-case group with Horizon3.ai NodeZero (autonomous pentesting) or ReliaQuest GreyMatter Agentic Teammates (GreyMatter for Government). Open a pair page or the use-case table — this is not a ranking.
- Amnify security agents (agent-driven code audit, AI pentesting, PR review and autofix pull requests) — German AppSec product from Düsseldorf: a team of agents audits repositories (SAST, secrets, SCA, IaC, CI/CD) and cloud accounts, triages signals so only confirmed findings surface, pentests running apps inside a verified scope with a separate agent reproducing every finding, reviews pull requests with a merge-blocking status check, and opens fix pull requests that run your tests but never merge themselves.
- noze CyberAgent (AI agent for continuous attack-surface monitoring, automated validation pentesting and NIS2 evidence) — Italian agent for mid-sized companies and NIS2 entities without an in-house SOC: after verifying domain control it continuously discovers assets and assesses network, web apps and APIs, correlates findings with EPSS and CISA KEV, confirms exploitability with automated validation pentests, ranks risks by business impact and prepares NIS2, DORA and ISO 27001 reports; the team decides what to fix. · noze CyberAgent (AI agent for continuous attack-surface monitoring, automated validation pentesting and NIS2 evidence) pair comparison
- SOCRadar AI Agents (specialist threat-intelligence, attack-surface, digital-risk and alarm-triage agents) — Roster of specialist agents inside the SOCRadar threat-intelligence platform: customers deploy agents, set each one's skills, scope and access, and green-light sensitive steps. Agents cover threat-actor and ransomware intelligence, detection-rule writing, IoC enrichment, identity/credential exposure, vulnerability analysis, brand and dark-web monitoring, phishing-domain hunting, external attack surface and Shodan recon, and alarm triage that records verdicts and asks before changing an alarm's status. · SOCRadar AI Agents (specialist threat-intelligence, attack-surface, digital-risk and alarm-triage agents) pair comparison
- Strike48 agentic SecOps platform (pre-built SOC agent team and no-code agent builder over federated logs, cloud or air-gapped on-prem) — Agentic orchestration platform for SOC and IT teams from the company behind the Devo log platform: purpose-built micro agents triage and investigate alerts, analyse phishing, hunt threats, write and tune detections and help with compliance over logs queried in place across SIEMs and data lakes, with configurable human approval and an audit trail; available as SaaS, isolated compute or an air-gapped on-prem appliance. · Strike48 agentic SecOps platform (pre-built SOC agent team and no-code agent builder over federated logs, cloud or air-gapped on-prem) pair comparison
Use-case comparisons
- AI SOC and security-analyst agents — 51 listings (Security operations, alert investigation and threat detection)
- Agentic pentesting AI agents — 33 listings (Autonomous or AI-assisted penetration testing, attack-surface testing and exploitable-path verification)
- US public-sector and FedRAMP AI agents — 25 listings (US government, FedRAMP and public-sector compliance or security operations)
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