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LMNTRIX Active Defense vs ReliaQuest GreyMatter comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

LMNTRIX Active Defense
Ranking in Managed Detection and Response (MDR)
36th
Average Rating
9.8
Reviews Sentiment
8.0
Number of Reviews
5
Ranking in other categories
Threat Deception Platforms (15th)
ReliaQuest GreyMatter
Ranking in Managed Detection and Response (MDR)
17th
Average Rating
9.6
Reviews Sentiment
8.1
Number of Reviews
2
Ranking in other categories
Digital Risk Protection (11th), Extended Detection and Response (XDR) (25th)
 

Mindshare comparison

As of August 2026, in the Managed Detection and Response (MDR) category, the mindshare of LMNTRIX Active Defense is 0.9%, up from 0.7% compared to the previous year. The mindshare of ReliaQuest GreyMatter is 1.5%, down from 1.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Managed Detection and Response (MDR) Mindshare Distribution
ProductMindshare (%)
ReliaQuest GreyMatter1.5%
LMNTRIX Active Defense0.9%
Other97.6%
Managed Detection and Response (MDR)
 

Featured Reviews

EQ
Chief Information Officer at The C&S Companies
It gives us fantastic information about the security of our environment
The dashboard can seem overwhelming at times. It's fairly simple for the end user, and we don't need to do much to make it work, but the dashboard makes it seem a little more complicated than it actually is. There could also be more guidance on how to set up playbooks.
MK
Senior Security Analyst at Tata Consultancy
Unified security monitoring has reduced alert fatigue and improves proactive threat hunting
I use real-time monitoring in ReliaQuest GreyMatter, which significantly improves my security posture. The unified interface helps reduce alert fatigue. I would estimate it saves around 20% in alert fatigue reduction. The automated threat hunting capabilities in ReliaQuest GreyMatter help me stay ahead of threats. The machine learning algorithm benefits my threat intelligence by providing deeper insights and predictions. I use various metrics to rate the success of the predictive threat intelligence in ReliaQuest GreyMatter.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"I sleep better at night knowing that LMNTRIX is monitoring our systems and has the ability to respond to threats as they happen."
"Customer service is stellar and they really care about their customers."
"We have a dedicated technical representative that is very responsive."
"I have no regrets about standardizing on LMNTRIX as our endpoint protection agent."
"Automatic alerts from staying current with the threat landscape have helped us stay safe."
"LMNTRIX gives us fantastic information about the security of our environment. It tells us about possible threats and how to fix any issues."
"The fact that it's constantly hunting, looking for anomalies, and can evict without any intervention is really incredible."
"LMNTRIX first validates incidents before alerting us of the activity, so we're not inundated with false positives."
"ReliaQuest GreyMatter has helped us to reduce security incidents by 89%, which is a significant amount of incidents we have seen."
"ReliaQuest GreyMatter saves around 60% of time or resources."
 

Cons

"The dashboard can seem overwhelming at times. It's fairly simple for the end user, and we don't need to do much to make it work, but the dashboard makes it seem a little more complicated than it actually is. There could also be more guidance on how to set up playbooks."
"The only multifactor authentication that is available is Google Authenticator. I would love to see other multifactor applications added to this list as well as physical devices such as Yubikey."
"In the beginning, we were having issues with the LMNTRIX respond agent not playing nice with Cisco AMP."
"The next release might include a monthly newsletter."
"The only multifactor authentication that is available is Google Authenticator."
"The portal is still a bit buggy, although it's new and still being refined."
"The dashboard can seem overwhelming at times."
"Areas that have room for improvement include user interface and integration."
 

Pricing and Cost Advice

"The pricing and ease of install are great!"
"It's not the cheapest solution, but you certainly get what you paid for."
"The cost is going to be a little higher than traditional endpoint protection, but you are getting the 24/7 monitoring and validation by highly skilled analysts and that makes it worth it."
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Top Industries

By visitors reading reviews
Financial Services Firm
18%
Construction Company
16%
Non Profit
7%
Comms Service Provider
6%
Financial Services Firm
10%
Manufacturing Company
10%
Construction Company
8%
Retailer
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
No data available
 

Questions from the Community

Ask a question
Earn 20 points
What needs improvement with ReliaQuest GreyMatter?
Areas that have room for improvement include user interface and integration.
What is your primary use case for ReliaQuest GreyMatter?
I use ReliaQuest GreyMatter for detection and response, XDR, and SIEM. The best features I like about GreyMatter the most are its efficiency and user experience.
 

Overview

 

Sample Customers

Alliance Funding Group (AFG) - USA Kestrel Coal - Australia Success Resources - Malaysia
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Find out what your peers are saying about LMNTRIX Active Defense vs. ReliaQuest GreyMatter and other solutions. Updated: August 2026.
909,725 professionals have used our research since 2012.