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Armis Centrix for OT/IoT Security vs Tenable OT Security comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 8, 2026

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

Armis Centrix for OT/IoT Se...
Ranking in Operational Technology (OT) Security
17th
Average Rating
8.0
Reviews Sentiment
6.6
Number of Reviews
1
Ranking in other categories
IoT Security (11th)
Tenable OT Security
Ranking in Operational Technology (OT) Security
4th
Average Rating
8.6
Reviews Sentiment
6.6
Number of Reviews
7
Ranking in other categories
No ranking in other categories
 

Featured Reviews

reviewer2807997 - PeerSpot reviewer
Network and Security Engineer
Security monitoring has uncovered unauthorized devices and now protects client networks
I think the best feature of Armis Centrix for OT/IoT Security is that it ensures only the authorized devices and users are authorized to prevent any potential breaches. I think that clear definition is very essential for a lot of networks because it helps us understand who should be there and who shouldn't be. For our clientele, we were able to discover a lot of unauthorized devices that were on their network. This first of all helped them remove a lot of potential security breaches and cleared the bandwidth of the network as well. I think this has been one of the biggest cases that we have found. For most of the clients where we have deployed it, this has always been a common occurrence because a lot of people enter the network and then you don't know who is there, who has the access, and so on. I think this is the very reason I said what I said earlier.
AP
Senior Consultant at Payatu
Enables cost-effective asset and threat management while requiring improvements in support and training
The time it takes to train itself is a concern. Initially, it will not identify many assets, as it needs time to read the information before finding the assets. Some detections can go wrong, and it may not understand certain industrial protocols. While installation and deployment are easy, upgrading from one version to another can be challenging. When you assure clients they will receive minus two upgrades, sometimes upgrading through the cloud becomes difficult, requiring on-site upgrades. During upgrades, the previous configuration may be lost, creating support issues.

Quotes from Members

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

Pros

"I think the best feature of Armis Centrix for OT/IoT Security is that it ensures only the authorized devices and users are authorized to prevent any potential breaches."
"The product has easy-to-manage features and components."
"The clear distinction between IT and OT that Tenable OT provides is its most valuable feature."
"The active query inventory is the most valuable feature."
"The initial setup was very easy, and I would rate it a ten out of ten."
"The product’s price is its most valuable feature."
"I like Tenable OT Security for two main reasons. Firstly, it helps identify vulnerabilities and risks for IT and OT assets, which is crucial for our operations. Secondly, it performs external port scanning, including vulnerability scans for open ports. Compared to the Claroty Platform, the tool offers detailed asset discovery capabilities."
"It's for securing the vulnerability of the OT solutions they are using. We mitigate those through patch management activities and find vulnerabilities easily with this security solution."
"The biggest advantage is that with good infrastructure, you can utilize asset planning when using Nessus along with Tenable OT Security."
 

Cons

"I'm not exactly sure how scalable it is if you're managing multiple locations, but I think it still has some potential for improvement for multiple locations."
"Tenable.ot's integration with one of the products needs improvement."
"As an IT security professional, I would like to see automation improvements in the response part of Tenable OT Security. However, I understand that implementing automation in OT environments can be quite challenging."
"Tenable OT product is good, but OT security itself is still maturing."
"The solution should provide more features to prevent attacks."
"As an IT security professional, I would like to see automation improvements in the response part of Tenable OT Security."
"Tenable OT Security is fine, but I find it more language-based rather than structured. It feels like something is on a web page, and the dashboards and data representations are not cool. First of all, I said that the tool view should be improved. It looks pretty old. Second, the details Tenable OT Security provides regarding the metadata they work with should be more in-depth. Its main focus is vulnerability management, which is fine, but what about threat actors? What about attack vectors and OT vulnerabilities? There are major areas, baselines, etc. that need attention."
"During upgrades, the previous configuration may be lost, creating support issues."
"The solution could detect changes in reading variables. The support of IoT devices can be improved."
 

Pricing and Cost Advice

Information not available
"The tool's pricing is fair enough."
"The product is inexpensive."
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Top Industries

By visitors reading reviews
No data available
Energy/Utilities Company
16%
Manufacturing Company
16%
Computer Software Company
9%
Financial Services Firm
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business4
Large Enterprise4
 

Questions from the Community

Ask a question
Earn 20 points
What is your experience regarding pricing and costs for Tenable OT Security?
Considering the cost and that it is affordable, I would rate it at seven.
What needs improvement with Tenable OT Security?
The time it takes to train itself is a concern. Initially, it will not identify many assets, as it needs time to read the information before finding the assets. Some detections can go wrong, and it...
What is your primary use case for Tenable OT Security?
I am using it for Asset Discovery, vulnerability management and threat intel. Tenable OT Security is for asset management, vulnerability management as continuous threat detection for OT ICS environ...
 

Also Known As

No data available
Tenable.ot
 

Overview

 

Sample Customers

Information Not Available
Nesher Cement Enterprises, City of Raleigh
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