NetWitness Threat Detection & Response is a commercial extended detection and response solution by NetWitness. ReliaQuest GreyMatter is a commercial extended detection and response solution by ReliaQuest. Features, integrations, deployment and the company behind each one, side by side.
XDR platform combining NDR, EDR, SIEM, SOAR & UEBA for threat detection
Agentic AI security operations platform for autonomous threat investigation
See more solutions in this category, or build a security stack from your picks.
Based on what each listing shows: deployment, company size, price and open source.
ReliaQuest GreyMatter fits if you are a small business.
Common questions when comparing NetWitness Threat Detection & Response vs ReliaQuest GreyMatter for extended detection and response.
NetWitness Threat Detection & Response: XDR platform combining NDR, EDR, SIEM, SOAR & UEBA for threat detection. Built by NetWitness.
ReliaQuest GreyMatter: Agentic AI security operations platform for autonomous threat investigation. Built by ReliaQuest.
The table above shows where their features, integrations, deployment and company size fit differ.
NetWitness Threat Detection & Response is made by NetWitness. ReliaQuest GreyMatter is made by ReliaQuest. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. NetWitness Threat Detection & Response and ReliaQuest GreyMatter are both Extended Detection and Response products. Use the table above to see where features, deployment and company size fit differ.
No Extended Detection and Response shortlist yet. This is the closest one.
Updated 2026-11-02
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