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

 

Comparison Buyer's Guide

Executive SummaryUpdated on Nov 3, 2025

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

"The most valuable feature of this solution is the vulnerability assessment."
"My advice for those considering Tenable Security Center is to note the benefit of upgrading vulnerable devices."
"The tool gives us fewer false positives. Compared to its competitors, the solution’s reports are more accurate."
"Tenable Security Center's centralized platform helped with risk assessment and management across our IT environments, covering the patching process and providing detailed reports that significantly supported our reporting and audits and helped us close audit issues safely and successfully."
"Tenable is the leading product for vulnerability scanning."
"The scanning part, the agent part – that's the valuable aspect."
"The most valuable features of Tenable SC are scanning, reporting, dashboards, and automation."
"The scans are the most valuable aspect of this solution."
"The NodeZero Platform's real attack capabilities help identify vulnerabilities on my on-premise systems by adding an element of validation and offensive security testing on top of known vulnerabilities. The feature that allows security teams to fix and retest vulnerabilities instantly is very useful, even though it may not happen literally 'instantly.' It's a necessary tool for any organization to understand whether vulnerabilities are genuinely exploitable by attackers. With its near-real-time testing capabilities, it's an essential part of any security portfolio."
"My favorite feature about The NodeZero Platform is that it's autonomous, and it truly delivers on that promise—it can be set and forgotten while it performs its tasks, and it does exactly what it claims to do."
"I rate the stability of the NodeZero Platform a ten out of ten."
"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."
"For us, The NodeZero Platform is literally the single best security solution we have because the way that it works is we're able to scan every part of our network, both internally and externally, and then get completely actionable feedback that doesn't matter if it's for an application developer or a network admin."
"Honestly, it's one of the most transformational technologies we've implemented in our company."
"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."
"Penetration testing and scans are useful features."
 

Cons

"Deploying Tenable.sc is highly complex because it's an on-prem solution, whereas Tenable.io is cloud-based, so you can go live as soon as you log in. Tenable.sc involves significant integration with other on-prem solutions, and the deployment takes about two to three weeks with the help of a system integrator"
"Tenable has some problems with agents going offline during scanning and lag between agents and the security center."
"Security can always be improved."
"The reports and plugins for reports and scans could benefit from enhancements."
"We are facing some challenges related to our channel."
"The integration is very good, although it still needs to improve."
"We would like to see the inclusion of external IPs and simplified reporting that's easier to deal with"
"In terms of configuration, there is some level of flexibility that we are not able to achieve."
"The reports are quite useless."
"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."
"The speed of the scans takes some time, but in my opinion, it is not surprising for what it is doing."
"They've added a chatbot which isn't particularly useful, but when it can't answer questions, it forwards messages to human support."
"One of the areas where improvement is needed is in the visibility and reporting for large enterprises."
"I think The NodeZero Platform could improve by leveraging GPUs for password cracking, which would be pretty good."
"Sometimes even their support doesn't know why we're seeing certain issues."
 

Pricing and Cost Advice

"The licensing costs for this solution are approximately $100,000 US, and I think that covers everything."
"Tenable SC is priced per asset, with the basic solution starting around US$12,000 for 500 assets."
"Tenable.sc is more expensive than its competitors."
"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."
"For 500 users the licensing fee is roughly $100,000."
"We're a Fortune 500 company... our licensing costs [are] in the seven figures."
"The tool costs around 15,000 Saudi riyals monthly."
"The pricing is more than Nexpose."
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.
881,707 professionals have used our research since 2012.