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CRITICALSTART 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

CRITICALSTART
Ranking in Managed Detection and Response (MDR)
30th
Average Rating
9.4
Reviews Sentiment
7.3
Number of Reviews
10
Ranking in other categories
Security Orchestration Automation and Response (SOAR) (26th)
ReliaQuest GreyMatter
Ranking in Managed Detection and Response (MDR)
18th
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 June 2026, in the Managed Detection and Response (MDR) category, the mindshare of CRITICALSTART is 1.1%, up from 0.8% compared to the previous year. The mindshare of ReliaQuest GreyMatter is 1.4%, 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 GreyMatter1.4%
CRITICALSTART1.1%
Other97.5%
Managed Detection and Response (MDR)
 

Featured Reviews

JH
Sr. Manager, Security Engineering at a financial services firm with 501-1,000 employees
The transparency of data in the platform is perfect: You see everything as they are seeing it
Their Zero Trust Analytics Platform (ZTAP) engine, which is kind of their correlation engine, is by far and away one of the best in the business. We can filter and utilize different lists to build out different alerts, such as, what to alert on and when not to alert. This engine helps reduce our number of alerts and false positives. The service's Trusted Behavior Registry helps the provider solve every alert. The way that they have it built out is very intelligent. The way every alert comes in, it gets triaged one direction or another. If it is already a false positive, then it is still getting addressed and reviewed on a regular cadence. Also, true positive alerts get escalated to the appropriate personnel. Its mobile app is great. The ability just to be able to quick reference and see what's coming in when you're on the move or go. You don't always need to have your computer or laptop handy, because you can operate it just from the mobile app. It can communicate with analysts, which is great. The mobile app is great at affecting the efficiency of our security operations. Those guys are using it throughout the day, whether that be at the office, home, or off hours. Typically, they triage from the mobile app. Then, if an escalation needs to be done on a computer, they will pull out a computer. We were on the original UI for a few years, so the updated UI has been a refreshing change. It has significantly more ability to filter and translate data, then load that data. It is rather intuitive to click through for some of our junior analysts or interns, especially as we are starting to onboard and teach them different aspects of the security operations team.
Zaid bin junaid  - PeerSpot reviewer
Product Manager at Flash
Improved threat detection has reduced incidents and has automated investigations with AI
There are multiple features of ReliaQuest GreyMatter which I love personally. The agentic AI, which helps in autonomous investigation and containment, is multiplying the speed of the task to be done. Features such as managed service integration and MDR with human expertise when needed are some major features which I love about ReliaQuest GreyMatter.

Quotes from Members

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

Pros

"We are absolutely seeing return on our investment from CRITICALSTART's services, as they're doing the job of a 24/7 SOC at a fraction of the price that it would cost me to run it myself."
"The main difference between the other options and this one is the quality of the personnel within the SOC. It's their knowledge and depth and the way they handle customers."
"After a year of using the service, our expectations have been met in terms of services delivered on time, on budget, and on spec."
"My impression of the transparency of the data is that it has good detail. It allows you to see how many events have come in, how many of those events have made it down to their analysts to review, and then however many from their analysts to be able to close out, have been able to been escalated to us. It's a good metric that we can share with my management. They see the value of what the SOC is bringing on top of what my team is already doing."
"The biggest lesson is transitioning from alert overload to being at a point where we do have eyes on alerts, where every alert is truly possible."
"From where we were prior to going into them, the service has increased our analysts’ efficiency to the point that they can focus on other areas of the business."
"Out of all the service providers I've had to work with over the years—I've been here six years—CRITICALSTART is my favorite to work with."
"CRITICALSTART makes us much more comfortable with knowing someone else is watching our data and our systems and knowing that professional security people are taking a look at any issues that do arise."
"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 biggest room for improvement is not necessarily in their service or offering, but in the products that they support. I would like them to further their knowledge and ability to integrate with those tools. They have base integrations with everything, and we haven't come across anything. They should just continue to build on that API interface between their applications and other third-party consoles."
"They could dig a little bit deeper into the Splunk alerts when they feel like they need to be escalated to us. For example, if a locked account shows up, they could do a little extra digging to verify that the locked account was due to a bad password on the local system. They could just do a little extra digging within the Splunk environment instead of pushing it onto us to go do that extra little digging."
"There is room for improvement with the new UI, and that's about it. I would like to see a more intuitive design."
"During the six-month integration and rollout, there were some bumpy roads along the way. There were communication breakdowns between the project manager, CRITICALSTART leadership, and us (as the customer). I expressed my displeasure during the integration in their inability to effectively communicate when there were holdups or issues. They were going through some growing pains at that time, but they have been right there for us ever since."
"The biggest room for improvement is not necessarily in their service or offering, but in the products that they support."
"The only thing I can think of that I would like to see, and I'm sure they could work this into a service pretty easily, is not only alerts on issues that are affecting my company, but some threat intelligence of a general nature on what's out there in the environment. That might be a nice add-in."
"The UI has become slower but it's not something I would call them out on."
"It has frustrated us that they don't have a native Slack integration, because most things do now. That's something we've asked for, for years, and it just doesn't really seem like it's a priority."
"Areas that have room for improvement include user interface and integration."
 

Pricing and Cost Advice

"Overall, for what I'm paying for it, and the benefit I'm getting out of it, it is right where it needs to be, if not a little bit in my favor. For what it costs me to actually have this service, I could afford one internal person to do that job, but now I have a team of 10 or more who are doing that job, and they don't sleep because they work shifts."
"As far as the expense goes, it's very competitive pricing and the services you get are almost like you have a person on your team."
"The pricing of other services was so insane that they weren't even an option."
"The pricing has always been competitive. They have always been good to us. They will make it a fight. They don't try to hide anything; it's always been fully transparent and well-worth what we pay for it."
"There are contractual penalties if their SLAs are not met. This commitment was very important in our decision to go with this service, because not having downtime is extremely important to us. The providers has not missed an SLA in the 18 months that I have worked with them."
"It costs a lot for what we felt comfortable to spend."
"I've told CRITICALSTART that I think the managed service they provide is cheaper than it should be. It's a really good deal."
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Top Industries

By visitors reading reviews
Construction Company
11%
Financial Services Firm
10%
Manufacturing Company
10%
Comms Service Provider
9%
Financial Services Firm
11%
Manufacturing Company
9%
Construction Company
7%
Retailer
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise3
Large Enterprise4
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.
 

Also Known As

Critical Start, CriticalStart
No data available
 

Overview

Find out what your peers are saying about CRITICALSTART vs. ReliaQuest GreyMatter and other solutions. Updated: June 2026.
900,747 professionals have used our research since 2012.