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 Scorebased on 830 reference ratings
4.8/5.0 (830)
  • Top Performer 2025 2025
    Spring 2025Top PerformerManaged Detection and Response Software

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 mechanisms, areas where we feel sufficiently enabled to respond, and where we could automate or build efficiency. The comprehensive process and flexibility delivered by ReliaQuest has been essential to our ongoing improvement."

  • “With the aggressive nature of our organization's growth through M&A, we needed to get some more return on investment. We needed to do more than just detect—we also needed response capabilities.”

  • “We previously used another MDR provider. Every time we wanted a new rule or alert created or a new log source ingested, there were additional costs and delays. With ReliaQuest, we are able to seamlessly pivot to the ever-changing landscape.”

Featured Case Studies

  • Managed Detection and Response from ReliaQuest Delivers Time Savings of 20%.

  • Gossamer Bio Elevates Its Security Operations and Improves Team Performance by 122%

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

Featured Customer Videos

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.