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Nozomi Networks vs Tenable OT Security comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jul 10, 2024

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

Nozomi Networks
Ranking in Operational Technology (OT) Security
1st
Average Rating
9.0
Reviews Sentiment
6.8
Number of Reviews
12
Ranking in other categories
IoT Security (2nd)
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
 

Mindshare comparison

As of June 2026, in the Operational Technology (OT) Security category, the mindshare of Nozomi Networks is 15.2%, down from 29.5% compared to the previous year. The mindshare of Tenable OT Security is 7.6%, down from 11.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Operational Technology (OT) Security Mindshare Distribution
ProductMindshare (%)
Nozomi Networks15.2%
Tenable OT Security7.6%
Other77.2%
Operational Technology (OT) Security
 

Featured Reviews

Apurva Nigam - PeerSpot reviewer
Senior Team Member In Engineering And Cybersecurity at Mindsprint
Comprehensive dashboards have enabled detailed asset visibility and proactive risk mitigation
On the negative side, I believe their AI, which is IQ, could be more improved. For example, when I export any data, there are only 50 columns available. What if there were more columns? Nozomi Networks does not provide that data, so I have to go to the query section. The AI is currently useful for writing queries in English that are converted into their coding language for queries. Sometimes it provides the correct data, and sometimes it does not understand the request. From my attempts, I would say 50 percent of the time it has given me the proper data, and 50 percent of the time it might need improvement. Every day or week, new threat intelligence and AI upgrades are being released for Vantage, and all those upgrades are being implemented. Things are getting better, but I believe there are areas of improvement.
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 chose Nozomi because it is far ahead of other competitors, like Curator and Elastic."
"The most valuable feature of Nozomi Networks is its security features."
"The most valuable features of Nozomi Networks are the visibility of OT protocols and the versatility in finding the details of the assets feeding the tool."
"The tool's visibility is good. We can see the traffic flow."
"Nozomi Networks has the best AI-based detection and intrusion detection solution, as it is very robust, easy to deploy, and easy to use with a very user-friendly GUI and good support in terms of product and after-sales support."
"The network visualization feature of Nozomi impacts security operations positively."
"Nozomi Networks has positively impacted our organization since we are in the asset owner environment."
"The best feature of Nozomi Networks is that it has built OT-oriented protocols such as OPC UA, DNP3, Modbus, and Siemens S7, and for these protocols, Nozomi Networks identifies them very perfectly."
"The biggest advantage is that with good infrastructure, you can utilize asset planning when using Nessus along with Tenable OT Security."
"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."
"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."
"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."
"The clear distinction between IT and OT that Tenable OT provides is its most valuable feature."
"The product has easy-to-manage features and components."
 

Cons

"I would like more customizable options for configurations."
"I see challenges with Nozomi Networks mainly as a detection or visibility tool, but it does not actively block traffic by design for safety reasons."
"Nozomi Networks should improve its pricing."
"Regarding the functionality of Nozomi Networks, the query syntax is very complicated. The syntax of the queries is very complex, so sometimes you will not get what you want."
"The solution should include an integration library."
"Nozomi Networks currently offers add-ons, such as ARP agents, that can be installed on machines to expand the information we receive from sensors. However, these are part of a licensing structure, which can be costly."
"I believe there is room for improvement regarding on-premises AI."
"On the negative side, I believe their AI, which is IQ, could be more improved."
"The solution should provide more features to prevent attacks."
"During upgrades, the previous configuration may be lost, creating support issues."
"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's integration with one of the products needs improvement."
"The solution could detect changes in reading variables. The support of IoT devices can be improved."
"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."
"Tenable OT product is good, but OT security itself is still maturing."
 

Pricing and Cost Advice

"The solution's pricing is good and cheaper than that of Claroty."
"I have not seen any competition in terms of pricing, and it is quite reasonable."
"The product is inexpensive."
"The tool's pricing is fair enough."
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Top Industries

By visitors reading reviews
Manufacturing Company
14%
Energy/Utilities Company
10%
Computer Software Company
7%
Comms Service Provider
7%
Energy/Utilities Company
15%
Manufacturing Company
14%
Computer Software Company
7%
Outsourcing Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business8
Large Enterprise4
By reviewers
Company SizeCount
Small Business4
Large Enterprise4
 

Questions from the Community

What is your experience regarding pricing and costs for Nozomi Networks?
Nozomi Networks and Claroty are on the expensive end of the market, so the client should have those budgets available.
What needs improvement with Nozomi Networks?
The potential area of improvement I see for Nozomi Networks is that there are many unknown malwares that cannot be identified because they are not updated in the National Vulnerability Database. Th...
What is your primary use case for Nozomi Networks?
My main use case for Nozomi Networks is that I have experience with implementation, designing, and configuration.
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

SCADAguardian
Tenable.ot
 

Overview

 

Sample Customers

Enel, FireEye, GlaxoSmithKline, VEC, TAGSEC Group
Nesher Cement Enterprises, City of Raleigh
Find out what your peers are saying about Nozomi Networks vs. Tenable OT Security and other solutions. Updated: June 2026.
900,747 professionals have used our research since 2012.