Name: ReliaQuest GreyMatter
Rating: 4.7 (259 reviews)

Overview

Service Information on ReliaQuest GreyMatter

Updated 27th March 2026

What is ReliaQuest GreyMatter?

ReliaQuest GreyMatter is an agentic AI security operations platform that 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.

Overall experience with ReliaQuest GreyMatter

SECURITY ANALYST

<50M USD, Insurance (except health)

FAVORABLE

“Automated Response Capabilities Accelerate Threat Shutdown Despite Setup Complexity”

5.0

Nov 21, 2025

ReliaQuest GreyMatter is a great addition to any organization that wants to enhance their security posture. It provides you with instant security alerts from your environment on a centralized platform that allows for a quick response from your security team.

IT Security & Risk Management Associate

250M - 500M USD, Energy and Utilities

CRITICAL

“Exploring Flexibility in Switching between Various Integrations”

3.0

Sep 25, 2024

This platform has a lot of potential but requires some dedicated resources to get the most out of the tools. Additionally, the value is low unless you buy multiple integrations.

About Company

Company Description

ReliaQuest exists to Make Security Possible. Our Agentic AI-powered security operations platform, GreyMatter, allows security teams to detect threats at the source, contain, investigate and respond in less than 5 minutes – eliminating Tier 1 and Tier 2 security operations work. GreyMatter uses data-stitching, detection-at-source, AI and automation to seamlessly connect telemetry from across cloud, multi-cloud and on-premises technologies. ReliaQuest delivers outcomes specific to each organization’s unique architecture, technology and business needs. With over 1,000 customers and 1,200 teammates across six global operating centers, ReliaQuest Makes Security Possible for enterprise brands around the world.

Company Details

Company type

Private

Year Founded

2007

Head office location

Tampa, United States

Number of employees

1001 - 5000

Website

https://www.reliaquest.com/

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User Sentiment About ReliaQuest GreyMatter

Reviewer Insights for: ReliaQuest GreyMatter

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Performance of ReliaQuest GreyMatter Across Market Features

ReliaQuest GreyMatter Likes & Dislikes

ReliaQuest GreyMatter is compatible with many popular security products. The GreyMatter platform ingests all the logs into one location and generates security alerts based on the detected threats. In addition to the alerts, GreyMatter also utilizes AI to generate additional information, such as recommended actions to take based on the threat. My personal favorite feature of GreyMatter is the automated response plays (ARPs). With the ARPs, actions such as blocking IPs or disabling accounts can be automatically taken depending on what is detected. This allows for threats to be immediately shut down, rather than losing time to manually take action.

Flexibility to pivot between different integrations and seamlessly close offense.

In my job function, I am primarily a user of ReliaQuest's MDR services. Their GreyMatter platform is very intuitive and user friendly in addition to tracking tickets/incidents within ServiceNow. It has several features packaged into one portal which improves efficiency. All of the staff/team members I've interacted with on calls and tickets are super friendly. They prioritize customer success. Working with their team members feels like my own. Their incident response works very well. They have agentic systems which help classify and analyze incidents in addition to real people. Their analysis is almost always thorough, and they are super responsive to any inquiries. Additionally, the agentic system can be tuned to improve results.

ReliaQuest GreyMatter is very expensive. It can be very costly, if not impossible for smaller businesses to afford it. Connecting all the log sources is also a major project. You can expect to spend hours, as well as meeting with ReliaQuest's engineers, to make sure everything is set up correctly. The GreyMatter mobile app can be finicky at times. Occasionally I am not able to run response plays from the mobile app and have to use the desktop version instead.

Fairly basic threat intelligence and inability to customize your own rules / detections. Everything must be run through RQ team.

Sometimes incident analysis is lacking but usually improves with additional inquiries. Service tickets (not incident related) take longer to resolve and can require several rounds of follow-up. Some of their platform integrations with the specific technologies we use could be improved, but only marginally.

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Peer Discussions

ReliaQuest GreyMatter Reviews and Ratings

Recommended Gartner Insights

Market Guide for Security Threat Intelligence Products and Services (Transitioning to Cyber Threat Intelligence Technologies)

<50M USD

Insurance (except health)

Review Source

Automated Response Capabilities Accelerate Threat Shutdown Despite Setup Complexity

IT Associate

Services (non-Government)

ReliaQuest is great!

4.0

Oct 28, 2025

ReliaQuest' MDR services are effective and backed by solution-oriented teams who prioritize customer success.

DIRECTOR, IT INFRASTRUCTURE & OPERATIONS

50M-1B USD

Manufacturing

A Strategic Cybersecurity Alliance Driving Operational Excellence and Resilience

Nov 3, 2025

Our partnership with ReliaQuest has evolved into a robust and multifaceted collaboration that demonstrates a high level of operational engagement, technical alignment, and strategic value. This relationship is marked by consistent communication, proactive threat management, and a shared commitment to improving our cybersecurity posture.

Operations Associate

1B-10B USD

Energy and Utilities

Ease of Use and Responsive Support Highlight RQ/GM Service Experience

Apr 4, 2026

The overall experince with RQ/GM has been great. It is easy to make changes, to talk to their engineers and to run playbooks.

VP, IT Security and Risk Management

Banking

SIEM Transition Completed On Time and Below Budget With Marked Improvement

Nov 7, 2025

Delivery and transition of our SIEM was on time and under budget. The improvement from the last vendor is over 150%.