G2 Vendor Directory

ReliaQuest GreyMatter vs. UnderDefense MAXI

A side-by-side comparison based on G2 review data.

MetricReliaQuest GreyMatter

by ReliaQuest

UnderDefense MAXI

by UnderDefense

Overall rating4.74.9
Review count2074
Ease of use9.09.8
Ease of setup8.79.9
Quality of support9.29.9
Meets requirements9.29.9
NPS8597.260274
Small Business29.4%52.7%
Mid-Market47.1%40.5%
Enterprise23.5%6.8%
Total page views535824
Total LLM citations2,209429

ReliaQuest GreyMatter

ReliaQuest’s agentic AI security operations platform, GreyMatter, allows security teams to detect threats at the source, contain them in under 5 minutes, and eliminate Tier 1 and Tier 2 work for faster investigation and response. GreyMatter orchestrates 6 agentic AI personas with 200+ agent skills and 400+ AI tools to exponentially scale security operations and help organizations predict what's next.

Pros

  • Features
  • Customer Support
  • Centralized Management
  • Ease of Use
  • Easy Integrations
  • Integrations

UnderDefense MAXI

UnderDefense is an Agentic AI SOC & Compliance Automation platform trusted by 200+ enterprises in the US and EU. It works on top of the security stack you already own — no rip-and-replace, no added headcount — so your team spends its time on decisions, not triage. ◆ 10+ years of operations with zero ransomware incidents ◆ 250+ integrations across any SIEM, EDR, or cloud stack ◆ 24/7 IR team available whenever you need urgent support WHAT WE OFFER AGENTIC AI SOC UnderDefense Agentic AI SOC works on top of your existing security stack, turning every security team into a machine-speed defense

Pros

  • Visibility
  • Information Accuracy
  • Issue Resolution
  • Cybersecurity
  • Customer Support
  • Reliability