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Nozomi Networks vs Tenable OT Security comparison

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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
8.6
Reviews Sentiment
6.2
Number of Reviews
28
Ranking in other categories
IoT Security (1st)
Tenable OT Security
Ranking in Operational Technology (OT) Security
5th
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 September 2026, in the Operational Technology (OT) Security category, the mindshare of Nozomi Networks is 13.8%, down from 28.5% compared to the previous year. The mindshare of Tenable OT Security is 7.2%, down from 10.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Operational Technology (OT) Security Mindshare Distribution
ProductMindshare (%)
Nozomi Networks13.8%
Tenable OT Security7.2%
Other79.0%
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

"Provides security for our operational technology environment for OT and IoT."
"Nozomi Networks has positively impacted my organization by providing observability of the environment and the assets in the OT environment of the shop floor."
"The feature I like best is its stability."
"The scalability of Nozomi Networks is super easy to scale up as long as you have a Vantage solution, meaning the private cloud connected to on-premises or on-premises Guardians connected to the private Nozomi Networks cloud."
"I believe it is the best."
"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 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."
"Nozomi Networks has really offered a stellar performance within the organization and there is not any specific part that needs improvement for now."
"The product has easy-to-manage features and components."
"The biggest advantage is that with good infrastructure, you can utilize asset planning when using Nessus along with Tenable OT Security."
"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 clear distinction between IT and OT that Tenable OT provides is its most valuable feature."
 

Cons

"To improve Nozomi Networks, I believe that it is less useful without Vantage if I have a multi-site setup."
"The pricing was quite high based on the end customer's perspective."
"Nozomi Networks can be improved in many points. First of all, reduce the cost. That is really important because many companies are not so huge and many companies cannot acquire this kind of licensing."
"I think Nozomi Networks can be improved by enhancing the size of the boxes and the performance for collecting logs, and of course, the price."
"The main challenge with mapping Nozomi Networks for asset inventory was the new integrations."
"I chose eight out of ten because their customer services are something lacking."
"Nozomi Networks can be improved by integrating with other technologies so that teams look at a single dashboard when it comes to security issues."
"Integrating with other security devices is a little difficult because this process is not currently automated."
"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."
"The solution could detect changes in reading variables. The support of IoT devices can be improved."
"Tenable.ot's integration with one of the products needs improvement."
"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."
"Tenable OT product is good, but OT security itself is still maturing."
"The solution should provide more features to prevent attacks."
 

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 tool's pricing is fair enough."
"The product is inexpensive."
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Top Industries

By visitors reading reviews
Manufacturing Company
13%
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
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business15
Midsize Enterprise3
Large Enterprise11
By reviewers
Company SizeCount
Small Business4
Large Enterprise4
 

Questions from the Community

What is your experience regarding pricing and costs for Nozomi Networks?
My experience with pricing, setup costs, and licensing of Nozomi Networks is that they are reasonable and acceptable. I would not categorize them as high.
What needs improvement with Nozomi Networks?
I would suggest that Nozomi Networks could bring up a feature to link the risk rating of the client's assets to the business importance. For example, a building automation system is more important ...
What is your primary use case for Nozomi Networks?
The main use case for Nozomi Networks for me was to bring up the asset inventory. My client opted for Nozomi Networks for the first time to help them know their assets better. They had many new int...
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: September 2026.
913,806 professionals have used our research since 2012.