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Tenable OT Security vs Waterfall Security comparison

Tenable and Waterfall Security are both solutions in the Operational Technology (OT) Security category. Tenable is ranked #4 with an average rating of 8.5, while Waterfall Security is ranked #11. Tenable holds a 8.9% mindshare in OT, compared to Waterfall Security’s 1.7% mindshare. Additionally, 100% of Tenable users are willing to recommend the solution, compared to 100% of Waterfall Security users who would recommend it.
Tenable OT Security
Read 7 Tenable OT Security reviews
  • 2,246 Views
  • 2,246 Comparison Views
100% willing to recommend
Waterfall Security
Read 1 Waterfall Security review
  • 495 Views
  • 391 Comparison Views
100% willing to recommend
 

Comparison Buyer's Guide

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Executive Summary
We performed a comparison between Tenable OT Security and Waterfall Security based on real PeerSpot user reviews.

Find out what your peers are saying about Nozomi, Claroty, CyberArk and others in Operational Technology (OT) Security.

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To learn more, read our detailed Operational Technology (OT) Security Report (Updated: March 2026).
Buyer's Guide
Operational Technology (OT) Security
March 2026
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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

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
Waterfall Security
Ranking in Operational Technology (OT) Security
11th
Average Rating
9.0
Reviews Sentiment
7.4
Number of Reviews
1
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of April 2026, in the Operational Technology (OT) Security category, the mindshare of Tenable OT Security is 8.9%, down from 12.2% compared to the previous year. The mindshare of Waterfall Security is 1.7%, up from 0.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Operational Technology (OT) Security Mindshare Distribution
ProductMindshare (%)
Tenable OT Security8.9%
Waterfall Security1.7%
Other89.4%
Operational Technology (OT) Security
 

Featured Reviews

AP
AbhishekPandey5
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.
Read full review
Iulian PAVALOAIA - PeerSpot reviewer
Iulian PAVALOAIA
SCADA & ICT SME/CConsultant at DNS
Cyber security solution used for data transmission that requires training to make use of all of its powerful features
We use this solution to manage auto operations, technology networks and information technology within our infrastructure. The SCADA controls the power network and does not interfere with accounting system. This solution is used predominantly for data transmission.  This is a professional solution…
Read full review

Quotes from Members

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

Pros

"The product’s price is its most valuable feature."
"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."
"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 initial setup was very easy, and I would rate it a ten out of ten."
"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 clear distinction between IT and OT that Tenable OT provides is its most valuable feature."
"This is a professional solution which has been the most valuable aspect of its use."
 

Cons

"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'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."
"The solution could detect changes in reading variables. The support of IoT devices can be improved."
"The solution should provide more features to prevent attacks."
"During upgrades, the previous configuration may be lost, creating support issues."
"Tenable OT product is good, but OT security itself is still maturing."
"As an IT security professional, I would like to see automation improvements in the response part of Tenable OT Security."
"The interface of this solution could be more user friendly. The initial set up could also be made more simple."
 

Pricing and Cost Advice

"The product is inexpensive."
"The tool's pricing is fair enough."
"This is an expensive solution."
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Top Industries

By visitors reading reviews
Manufacturing Company
16%
Energy/Utilities Company
16%
Computer Software Company
7%
Financial Services Firm
5%
Energy/Utilities Company
16%
Educational Organization
12%
Comms Service Provider
12%
Computer Software Company
10%
 

Company Size

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

Questions from the Community

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.
See all answers
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...
See all answers
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...
See all answers
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Earn 20 points
 

Comparisons

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Claroty Platform vs Tenable OT Security Logo
Claroty Platform vs Tenable OT Security
Compared 24% of the time
Dragos vs Tenable OT Security Logo
Dragos vs Tenable OT Security
Compared 13% of the time
Check Point Industrial Control Systems (ICS) Security vs Tenable OT Security Logo
Check Point Industrial Control Systems (ICS) Security vs Tenable OT Security
Compared 7% of the time
Microsoft Defender for IoT vs Tenable OT Security Logo
Microsoft Defender for IoT vs Tenable OT Security
Compared 5% of the time
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OPSWAT MetaDefender OT Security vs Waterfall Security Logo
OPSWAT MetaDefender OT Security vs Waterfall Security
Compared 27% of the time
Owl Cyber Defense vs Waterfall Security Logo
Owl Cyber Defense vs Waterfall Security
Compared 21% of the time
PT Industrial Cybersecurity Suite vs Waterfall Security Logo
PT Industrial Cybersecurity Suite vs Waterfall Security
Compared 11% of the time
Fortinet OT Security Platform vs Waterfall Security Logo
Fortinet OT Security Platform vs Waterfall Security
Compared 11% of the time
Cisco Secure Firewall vs Waterfall Security Logo
Cisco Secure Firewall vs Waterfall Security
Compared 8% of the time
More Waterfall Security Competitors
 

Product Reports

Buyer's Guide
Operational Technology (OT) Security
March 2026
Tenable OT Security reportDownload Tenable OT Security product report
Buyer's Guide
Operational Technology (OT) Security
March 2026
Waterfall Security reportDownload Waterfall Security product report
 

Also Known As

Tenable.ot
No data available
 

Overview

Get in-depth operational technology (OT) asset visibility to better understand, manage and reduce your cyber risk. Tenable OT Security (formerly Tenable.ot) is an industrial security solution for your modern industrial enterprise. It can help you identify assets in your OT environment, communicate risk, prioritize action and enable your IT and OT security teams to work better together.

With a comprehensive set of security tools and reports, Tenable OT Security provides unmatched visibility across IT and OT security operations and delivers deep situational awareness across all global sites and their respective assets — from Windows servers to PLC backplanes — in a single interface.

Tenable

Waterfall Security Solutions Enhances Support For Osisoft Pi and continues to invest in secure IT/OT integration.

Waterfall Security
 

Sample Customers

Nesher Cement Enterprises, City of Raleigh
Information Not Available
Buyer's Guide
Operational Technology (OT) Security
March 2026
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