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Tenable Security Center vs The NodeZero Platform by Horizon3.ai comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Feb 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

Tenable Security Center
Ranking in Vulnerability Management
6th
Ranking in Risk-Based Vulnerability Management
4th
Average Rating
8.2
Reviews Sentiment
7.2
Number of Reviews
56
Ranking in other categories
Cloud Security Posture Management (CSPM) (12th)
The NodeZero Platform by Ho...
Ranking in Vulnerability Management
11th
Ranking in Risk-Based Vulnerability Management
5th
Average Rating
9.0
Reviews Sentiment
5.7
Number of Reviews
11
Ranking in other categories
Advanced Threat Protection (ATP) (12th), Penetration Testing Services (1st), Breach and Attack Simulation (BAS) (1st)
 

Mindshare comparison

As of February 2026, in the Vulnerability Management category, the mindshare of Tenable Security Center is 3.1%, down from 6.4% compared to the previous year. The mindshare of The NodeZero Platform by Horizon3.ai is 1.5%, up from 0.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vulnerability Management Market Share Distribution
ProductMarket Share (%)
Tenable Security Center3.1%
The NodeZero Platform by Horizon3.ai1.5%
Other95.4%
Vulnerability Management
 

Featured Reviews

OndrejKOVAC - PeerSpot reviewer
Solution engineer at EXPERTience
Empower clients with risk-based vulnerability management through continuous workflow and valuable insights
Tenable Security Center could improve by implementing more dynamic data displays and translating reports into European languages. This is especially relevant in Central Eastern Europe, where clients often require reports in local languages. Additionally, the licensing model could be more flexible for managed security providers, similar to a pay-as-you-go model.
SH
Chief Information Officer at a construction company with 1,001-5,000 employees
Has unified our IT teams by providing clear visibility into network vulnerabilities and accelerated remediation with real-world attack testing
One of the things that we've shared with Horizon is just the reporting. They've made a lot of changes over time, but when examining computers, most average normal people don't look at a computer and identify it as 114.82.117.180. They identify it as 'the printer for accounting.' When many of the reports give the very detailed technical IP address or serial number, that's really not helpful for anyone other than the person, the hands-on person that's trying to remediate it. All the managers, all the leaders, having information in that format isn't helpful. Being able to have information about what those devices are would be very helpful. There's a technical reason they can't just have an easy button because some people have really complicated networks. When examining things for the average company, the average executive, that 114 number, there's only one of those. But if examining an AT&T or a Walmart, it isn't unique. They haven't solved that problem. But for the 90% of companies, being able to have just a human readable name for all devices on your network in all of the reports all of the time would be the most beneficial.

Quotes from Members

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

Pros

"Tenable SC's most valuable features are the low number of false positives and the strong capability of providing prioritization for the vulnerabilities detected."
"Initial setup was pretty straightforward."
"The initial setup process is simple."
"It's a very useful tool."
"The usability is really good. It's very easy to use and a good platform. It is scalable and very stable. The technical support is fine and the setup is super easy."
"One of the most valuable features is their distributed scan model for allotting engines to work together as a pool and handle multiple scans at once, across multiple environments. Automatic scanning distribution is a distinguishing feature of their toolset."
"This product has the best results in terms of the lowest number of false-positives and false-negatives."
"Tenable is the leading product for vulnerability scanning."
"After the third party conducts the pen test, The NodeZero Platform is run, and it finds the same things they found and sometimes a few other things that they did not even identify."
"We experienced a threat that could have severely crippled us, but we were able to shut it down before it escalated, thanks to internal vulnerability testing and addressing critical vulnerabilities using their tool."
"The NodeZero Platform's real attack capabilities help in identifying vulnerabilities on our on-prem systems because it provides actual vulnerabilities by attacking our systems."
"Overall, I'd rate NodeZero at nine to 9.5 out of ten."
"I rate the stability of the NodeZero Platform a ten out of ten."
"Honestly, it's one of the most transformational technologies we've implemented in our company."
"Penetration testing and scans are useful features."
"The NodeZero Platform is amazing; what I love most about it is that it's automated and comparable to the manual pen testing we did with a third-party company, but with the added benefit of unlimited retesting to validate fixes."
 

Cons

"The web application scanning area can be improved."
"There is not much room for improvement. However, there should be a guide that describes the step-by-step procedures for doing tasks. Otherwise, training is required from a senior guy to a junior guy."
"The user interface can be improved."
"Tenable SC could improve by making the creation of the initial reports easier that correspond to our network."
"The solution's user interface has some issues."
"The dashboard templates are limited."
"The pricing is reasonable, but this could be brought down more aggressively, such as we see with Rapid7, Tenable SC's main competitor."
"It could be more user-friendly for creating custom reports."
"I think The NodeZero Platform could improve by leveraging GPUs for password cracking, which would be pretty good."
"I encountered challenges with patch management, as we struggled to test and implement patches due to time constraints. This led to our patch management process being ineffective."
"The only issue we’ve encountered is that sometimes the scans take a long time to complete."
"One of the areas where improvement is needed is in the visibility and reporting for large enterprises."
"The areas for improvement for The NodeZero Platform involve integration and automation. It would be beneficial if it could integrate directly with vulnerability management tools that would allow the platform to automatically import data, identify vulnerable systems, and test targets immediately, potentially even enabling automated feedback loops for rescanning since the process is currently manual."
"The speed of the scans takes some time, but in my opinion, it is not surprising for what it is doing."
"The reports are quite useless."
"Sometimes even their support doesn't know why we're seeing certain issues."
 

Pricing and Cost Advice

"I rate the solution's price as seven on a scale of one to ten, where one is cheap and ten is expensive. The tool is quite expensive."
"This solution's price is quite high."
"I would rate the pricing a nine out of ten, where ten is expensive. It is the most expensive tool my company is using."
"Compared to other companies or other products it could maybe be a little bit less, but the price is okay. I would say it's not very expensive."
"My company needs to make yearly payments towards the licensing costs. The pricing of the solution falls in the mid-range level, so it is not too expensive"
"Costing is pretty reasonable compared to the competition."
"We're a Fortune 500 company... our licensing costs [are] in the seven figures."
"It is a bit expensive. Everything is included in the license."
Information not available
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Top Industries

By visitors reading reviews
Financial Services Firm
12%
Manufacturing Company
10%
Government
10%
Computer Software Company
8%
Computer Software Company
9%
Manufacturing Company
8%
Comms Service Provider
8%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business22
Midsize Enterprise10
Large Enterprise27
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise1
Large Enterprise4
 

Questions from the Community

What do you like most about Tenable SC?
The tool's dashboard and reporting capabilities match our company's needs since we are able to modify the basic view to create a new dashboard, and it works out very well for our needs.
What is your experience regarding pricing and costs for Tenable SC?
The price of Tenable Security Center is not so high; it's relatively a cheaper solution.
What needs improvement with Tenable SC?
We did conduct a long implementation which relates to what I think can be improved about Tenable Security Center. In some cases, we needed to refer back to Tenable itself, and in other cases, we ne...
What do you like most about Horizon3.ai?
Penetration testing and scans are useful features.
What needs improvement with Horizon3.ai?
I think The NodeZero Platform could improve by leveraging GPUs for password cracking, which would be pretty good.
What is your primary use case for Horizon3.ai?
We use The NodeZero Platform for control validation and we are also looking for the likelihood of vulnerabilities.
 

Also Known As

Tenable.sc, Tenable Unified Security, Tenable SecurityCenter
Horizon3.ai
 

Overview

 

Sample Customers

IBM, Sempra Energy, Microsoft, Apple, Adidas, Union Pacific
Government agencies, Defense Industrial Base organizations, and enterprises in regulated industries such as finance, healthcare, manufacturing, and criticalinfrastructure rely on NodeZero to meet rigorous security and compliance requirements with continuous, scheduled, and on-demand testing.
Find out what your peers are saying about Tenable Security Center vs. The NodeZero Platform by Horizon3.ai and other solutions. Updated: January 2026.
881,733 professionals have used our research since 2012.