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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Customer Rating Review Score based on 1133 reference ratings
4.8/5.0 (1133)
  • Spring 2026 Top Performer Managed Detection and Response Software
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Featured Testimonials

  • "For the first time in the history of both organizations, we were able to see and understand the entirety of our attack surface."

    Michael Meis Associate Chief Information Security Officer (CISO)

  • “We use a variety of tools in our security program, including Splunk, SentinelOne, and Microsoft. With GreyMatter, my team doesn’t have to do a lot of chair swiveling; we can …

    Christine Vanderpool Chief Information Security Officer

  • “Before ReliaQuest, we were dealing with a flood of alerts, most of which were false positives. The previous provider we engaged had a rigid approach that didn’t provide room for …

    Andrew Opicka Information Security Engineer
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Featured Case Studies

  • Signature Aviation Contains Threats 20X Faster with ReliaQuest GreyMatter

    James Lowry Director of Cybersecurity

  • Signify Saves 1,000 Analyst Hours with ReliaQuest GreyMatter

    Rob ter Linden Chief Information Security Officer

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

    Michael Meis Associate Chief Information Security Officer (CISO)
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Featured Customer Videos

  • Tampa General Hospital - Customer Success Story (Pete Rucys - Chief Information Security Officer)
    Play Video
    Pete Rucys Chief Information Security Officer
  • Auto Club Group Increases Visibility Across Their Environment by 39%
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    Gopal Padinjaruveettil Chief Information Security Officer
  • Gossamer Bio - Customer Success Story (Lisel Newton - Senior Director of Information Security, Risk & Compliance)
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    Lisel Newton Senior Director of Information Security, Risk & Compliance
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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.

FeaturedCustomers has 1,910,851+ validated customer references including reviews, case studies, success stories, customer stories, testimonials and customer videos that will help you make better software purchasing decisions.