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Cisco Identity Services Engine (ISE) vs Forescout Platform vs Fortinet FortiNAC comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

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

ROI

Sentiment score
8.4
Cisco Identity Services Engine enhances security and efficiency, providing cost savings and IT consolidation, making it vital for network management.
Sentiment score
6.7
Forescout Platform users achieve improved security, reduce workload, and automate threat management, though some question direct ROI impact.
Sentiment score
5.0
Fortinet FortiNAC enhances network security and management, reducing costs and labor while offering financial savings and efficiency.
Direct comparisons with Forescout reveal up to 30% to 40% difference in cost savings.
 

Customer Service

Sentiment score
5.9
Cisco Identity Services Engine customer service is praised for commitment, but technical support feedback varies due to delays and complexities.
Sentiment score
6.7
Forescout Platform's customer service is praised for responsiveness, but technical support experiences vary, with some delays and challenges noted.
Sentiment score
5.8
Fortinet FortiNAC support is varied, excelling in US and Asia-Pacific but needing improvements in EMEA, especially UK.
I rate the technical support as one out of ten.
Sometimes it's challenging to identify which support team is responsible for certain issues, which is a significant concern.
We have had experience with their technical support and must pay additionally for maintenance, support, and regional service.
They provide sessions to help with various questions.
They could do more to improve, not because of the product itself but because of the support they provide.
 

Scalability Issues

Sentiment score
7.3
Cisco ISE excels in scalable environments, efficiently supporting deployments with flexibility for thousands of endpoints across various sizes.
Sentiment score
7.7
Forescout Platform is known for scalable expansion suitable for medium to enterprise entities, despite cost and setup complexities.
Sentiment score
7.3
Fortinet FortiNAC is scalable and adaptable, with flexible licensing, though integration and setup complexity may need improvement.
Factors like architecture, business nature, and legal limitations such as GDPR affect it.
Scalability can be costly since a physical box needs to be installed for every site.
The pricing model makes it challenging as the cost is substantial due to the per-node licensing model.
 

Stability Issues

Sentiment score
7.7
Cisco ISE is reliable with high user satisfaction, though some report stability issues, especially during upgrades and high capacity.
Sentiment score
8.0
Forescout Platform is stable and reliable, though some users note performance issues; support enhances overall dependability and satisfaction.
Sentiment score
7.5
Opinions on Fortinet FortiNAC's stability vary, with ratings from seven to ten, citing both reliability and persistent issues.
Cisco Identity Services Engine (ISE) is considered very reliable and stable.
The stability of Cisco Identity Services Engine (ISE) is poor for certain use cases, like authentication.
I would rate its stability as 9.5 out of ten.
 

Room For Improvement

Cisco ISE struggles with setup complexity, non-intuitive UI, integration challenges, upgrade issues, and demands for better features.
Forescout Platform needs better integration, AI, cost-effectiveness, support, iOS compatibility, reporting, visualization, and seamless connectivity with third-party tools.
Fortinet FortiNAC struggles with integration, usability, setup, support, and pricing, needing better documentation and enhanced features.
The whole setup works well with Cisco access points and Cisco switches, but when you have multiple vendors in the environment, such as HP switches or access points like Aruba, you'll find they will not work well with Cisco Identity Services Engine (ISE).
Pricing can be more expensive compared to other vendors, and there is a significant price gap observed, which doesn't seem justified by some specific features.
They are very poor in asset classification and should focus on improving the preauthentication profiling, especially for NAC use cases.
Forescout Platform could enhance its integration of AI to improve IoT and OT device security to better meet our needs.
The console is a fat client, and a web interface would be preferable.
Improvement in the interface design would make FortiNAC a better solution.
The graphical user interface (GUI) of Fortinet FortiNAC is very poor compared to competitors like Forcepoint and Cisco ISE.
 

Setup Cost

Cisco ISE offers strong features with complex, expensive pricing, but discounts through partnerships can help alleviate costs.
Forescout Platform offers flexible, endpoint-based licensing for medium to large organizations, though setup costs and complexity can be high.
Fortinet FortiNAC offers competitively priced license tiers, considered valuable with options for yearly or perpetual licenses and support.
Compared to other solutions like HPE ClearPass, Cisco is more costly, and the conversation suggests a possible forty percent price gap compared to competitors.
The license costs can range between $50,000 to $100,000 per year for enterprises.
Cloud solutions are expensive, while on-prem setups with shared environments are cheaper but not effective.
Installing a physical box on each site can be expensive.
The overall pricing of Forescout Platform is reasonable for the functionality it provides.
Fortinet FortiNAC is relatively cheap compared to other solutions.
 

Valuable Features

Cisco ISE provides comprehensive access control, seamless integration, and enhanced security with intuitive management for versatile network operations.
Forescout Platform offers agentless deployment for enhanced device visibility, integration flexibility, and customizable network security and management solutions.
Fortinet FortiNAC ensures robust security, visibility, and integration, with features like compliance checks and customizable reporting for diverse networks.
Cisco Identity Services Engine (ISE) offers authentication using RADIUS, enhancing network security by separating and segregating networks.
There is value because it helps us secure the network and prevents certain things from happening which could cause financial loss.
The solution is integrated with other Cisco devices and can offer automation for an organization, making deployments more dynamic and providing real-time visibility.
One of the most valuable features of Forescout Platform is its automation, particularly the ability to automate remediation of rogue devices on the network.
The most effective feature has been network access management, which has been crucial for our primary use cases in the organization.
I appreciate the feature where it can connect with different vendor equipment, regardless of the network devices from other vendors.
The main advantage of Fortinet FortiNAC is its integration with the entire Fortinet product portfolio.
 

Mindshare comparison

As of August 2025, in the Network Access Control (NAC) category, the mindshare of Cisco Identity Services Engine (ISE) is 24.9%, down from 30.3% compared to the previous year. The mindshare of Forescout Platform is 12.1%, down from 13.6% compared to the previous year. The mindshare of Fortinet FortiNAC is 18.5%, up from 16.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Access Control (NAC)
 

Featured Reviews

SunilkumarNaganuri - PeerSpot reviewer
Enhanced device administration hindered by complex deployment and security limitations
Cisco Identity Services Engine (ISE) needs to improve the profiling preauthentication. They are very poor in asset classification and should focus on improving the preauthentication profiling, especially for NAC use cases. This will give them a roadmap for software-defined access (SDA) use cases and network segmentation. Threat detection capabilities are very weak. Additionally, the product is vulnerable and has many bugs.
Odai Halawani - PeerSpot reviewer
It's an easy and effective solution, especially for device profiling without agents
Forescout Platform's most valuable aspect is its excellent device profiling for devices without agents, which is crucial for our work due to challenges with agent-based devices. Its isolation and blocking actions are particularly effective for network security. The device compliance feature helps us ensure device compliance through immediate actions like updating antivirus software. We have already integrated Forescout with antivirus and vulnerability assessment tools, allowing it to monitor vulnerability scores and automatically isolate devices if critical vulnerabilities are detected.
Boaz Katabazi - PeerSpot reviewer
Seamless device discovery with integration and discovery capabilities
FortiNAC is very good in terms of device discovery and integration. I appreciate the feature where it can connect with different vendor equipment, regardless of the network devices from other vendors. That's something I appreciate about it, particularly in terms of adaptability. Despite the complexity of its interface, its discovery capabilities are commendable.
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Top Industries

By visitors reading reviews
Computer Software Company
16%
Financial Services Firm
10%
Government
9%
Manufacturing Company
9%
Computer Software Company
14%
Financial Services Firm
11%
Manufacturing Company
10%
Government
9%
Computer Software Company
13%
Manufacturing Company
10%
Financial Services Firm
9%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

Which is better - Aruba Clearpass or Cisco ISE?
Aruba ClearPass is a Network Access Control tool that gives secure network access to multiple device types. You can...
What are the main differences between Cisco ISE and Forescout Platform?
OK, so Cisco ISE uses 802.1X to secure switchports against unauthorized access. The drawback of this is that ISE cann...
How does Cisco ISE compare with Fortinet FortiNAC?
Cisco ISE uses AI endpoint analytics to identify new devices based on their behavior. It will also notify you if some...
What advice do you have for others considering Forescout Platform?
Forescout is a very powerful NAC product that does not rely on port level configuration. It can detect and block unau...
What advice do you have for others considering Forescout Platform?
I would rate the Forescout Device and Visibility Control Platform at a six out of ten.
What advice do you have for others considering Forescout Platform?
I recommend doing a compression demo. If people use it, they will buy it. So they have to see the product in place. T...
What is the biggest difference between Aruba ClearPass and FortiNAC?
I've done quite a lot of work with ClearPass, and not a lot with FortiNAC/Bradford. ClearPass incorporates a number ...
What do you like most about Fortinet FortiNAC?
The support responds to our queries within two to four hours.
What is your experience regarding pricing and costs for Fortinet FortiNAC?
I am not directly involved with pricing, but I know that Fortinet FortiNAC is relatively cheap compared to other solu...
 

Also Known As

Cisco ISE
Forescout Platform, CounterACT for Endpoint Compliance, ForeScout CounterACT
FortiNAC, Bradford Networks, Bradford Networks Sentry, Network Sentry Family
 

Overview

 

Sample Customers

Aegean Motorway, BC Hydro, Beachbody, Bucks County Intermediate Unit , Cisco IT, Derby City Council, Global Banking Customer, Gobierno de Castilla-La Mancha, Houston Methodist, Linz AG, London Hydro, Ministry of Foreign Affairs, Molina Healthcare, MST Systems, New South Wales Rural Fire Service, Reykjavik University, Wildau University
NHS Sussex, SAP, SEGA, Vistaprint, Miami Children's Hospital, Pioneer Investments, New York Law School, OmnicomGroup, Meritrust
Isavia, Pepperdine University, Medical University of South Carolina, Columbia University Medical Center, Utah Valley University
Find out what your peers are saying about Cisco, Hewlett Packard Enterprise, Fortinet and others in Network Access Control (NAC). Updated: July 2025.
865,295 professionals have used our research since 2012.