ReliaQuest

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Read 40 ReliaQuest reviews and testimonials from customers, explore 13 case studies and customer success stories, and watch 12 customer videos to see why companies chose ReliaQuest as their Managed Detection and Response

ReliaQuest is a global leader in Open XDR-as-a-Service, is the force multiplier for security operations teams. ReliaQuest GreyMatter, a cloud-native Open XDR platform brings together telemetry from any security and business solution—on-premises, in one or multiple clouds--to unify detection, investigation, response and resilience. ReliaQuest combines the power of technology and 24/7/365 security expertise to give organizations the visibility and coverage they require to make their cybersecurity program more effective.

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  • 40 Testimonials View
  • 13 Case Studies View
  • 12 Customer Videos View
Customer Rating Review Score based on 1269 reference ratings
4.8/5.0 (1269)
  • Spring 2026 Top Performer Managed Detection and Response Software

More from ReliaQuest

Featured Testimonials

  • "GreyMatter gives visibility into our entire environment – from endpoints to mulitple cloud environments and critical services. Understanding gap areas focuses us on those areas needing additional buildout of detection …

  • “ReliaQuest has helped us achieve 24/7 security monitoring and continues to deliver by providing valuable insights that help increase our security.”

  • "My team saved years of work and hundreds of thousands of dollars, thanks to GreyMatter’s turnkey rules, content, and best practices, coupled with the embedded playbooks—and all mapped back to …

Featured Case Studies

  • Fox Communities Credit Union Streamlines and Improves Security, Reducing MTTR by 70%

  • University of Kansas Health System Grows Visibility by 98% with GreyMatter

  • APi Group Increases Visibility by 47% and Secures Expanding Attack Surface Across …

Featured Customer Videos

  • Tampa General Hospital - Customer Success Story (Pete Rucys - Chief Information Security Officer)
  • Gossamer Bio - Customer Success Story (Lisel Newton - Senior Director of Information Security, Risk & Compliance)
  • University of Kansas Health System - Customer Success Story (Michael Meis - Associate Chief Information Security Officer)

Additional ReliaQuest Information & Resources

Read ReliaQuest Reviews, Testimonials & Customer References from 40 real ReliaQuest customers.

Browse ReliaQuest Case Studies, Customer Success Stories, & Customer References from 13 businesses that use ReliaQuest.

Watch ReliaQuest Customer Videos to learn why 12 businesses chose ReliaQuest.