G2 Vendor Directory

UnderDefense MAXI vs. ReliaQuest GreyMatter

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

MetricUnderDefense MAXI

by UnderDefense

ReliaQuest GreyMatter

by ReliaQuest

Overall rating4.94.7
Review count7420
Ease of use9.89.0
Ease of setup9.98.7
Quality of support9.99.2
Meets requirements9.99.2
NPS97.26027485
Small Business52.7%29.4%
Mid-Market40.5%47.1%
Enterprise6.8%23.5%
Total page views824535
Total LLM citations4292,209

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

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