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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, reduces breaches, ensures compliance, simplifies management, and consolidates systems for cost savings and efficiency.
Sentiment score
6.7
Forescout Platform users achieve improved security, reduce workload, and automate threat management, though some question direct ROI impact.
Sentiment score
6.9
Fortinet FortiNAC boosts security, reduces costs and configuration time, offering financial benefits and substantial ROI with minimal post-sale support.
Direct comparisons with Forescout reveal up to 30% to 40% difference in cost savings.
 

Customer Service

Sentiment score
5.9
Cisco ISE support is praised for knowledge and responsiveness, yet occasionally inconsistent with integration and follow-up challenges.
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
7.4
Fortinet FortiNAC support is responsive and helpful but criticized for slow responses, knowledge gaps, and lacking UK-based support.
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 Identity Services Engine (ISE) offers high scalability, supporting large deployments and enterprise expansions despite hardware and setup challenges.
Sentiment score
7.7
Forescout Platform is known for scalable expansion suitable for medium to enterprise entities, despite cost and setup complexities.
Sentiment score
7.7
Fortinet FortiNAC is generally scalable, flexible, suitable for enterprises, but user experiences vary due to licensing and integration challenges.
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 highly reliable and stable, though larger deployments may experience occasional performance and configuration challenges.
Sentiment score
8.0
Forescout Platform is stable and reliable, though some users note performance issues; support enhances overall dependability and satisfaction.
Sentiment score
7.7
Fortinet FortiNAC's stability receives mixed reviews, with praises for improvements but concerns about initial issues and support challenges.
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 Identity Services Engine requires improved integration, user interface, documentation, compatibility, and management efficiency to enhance user experience.
Forescout Platform needs better integration, AI, cost-effectiveness, support, iOS compatibility, reporting, visualization, and seamless connectivity with third-party tools.
Fortinet FortiNAC faces issues with integration, user interface, training, support, and network visibility, while being costly.
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).
Additionally, the product is vulnerable and has many bugs.
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.
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 three pricing tiers, with high costs and complex licensing, but provides extensive features and potential discounts.
Forescout Platform offers flexible, endpoint-based licensing for medium to large organizations, though setup costs and complexity can be high.
Fortinet FortiNAC offers competitive pricing with flexible licensing, good value, and affordability, especially in larger deployments.
The license costs can range between $50,000 to $100,000 per year for enterprises.
Compared to other solutions like HPE ClearPass, Cisco is more costly, and the conversation suggests a possible forty percent price gap compared to competitors.
Making large organizational costs significant.
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 enhances network security with integration, 802.1X authentication, policy management, ease of use, and strong access control.
Forescout Platform offers agentless deployment for enhanced device visibility, integration flexibility, and customizable network security and management solutions.
Fortinet FortiNAC provides strong security with device visibility, seamless integration, user management, compliance checks, and effective reporting tools.
Cisco Identity Services Engine (ISE) offers authentication using RADIUS, enhancing network security by separating and segregating networks.
Cisco Identity Services Engine (ISE) is very good at device administration.
The solution is integrated with other Cisco devices and can offer automation for an organization, making deployments more dynamic and providing real-time visibility.
The platform enables automated policy enforcement, allowing us to simulate and test policies before enforcement, streamlining our security operations.
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 June 2025, in the Network Access Control (NAC) category, the mindshare of Cisco Identity Services Engine (ISE) is 25.3%, down from 31.1% compared to the previous year. The mindshare of Forescout Platform is 12.4%, down from 13.3% compared to the previous year. The mindshare of Fortinet FortiNAC is 18.9%, up from 16.3% 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.
AmjadKhan1 - PeerSpot reviewer
Blocks users who don't follow the policies and enforces compliance
The solution has a compliance enforcement feature that sends non-compliant systems to quarantine. Forescout Platform is a good product that provides seamless integration with Cisco Juniper and other devices. We wanted Forescout Platform to integrate with our firewalls and some vulnerability patch management solutions. Forescout Platform is currently the best product and top-of-the-line NAC solution in the market. I always recommend this product to other companies as well. We have 365 subsidiary companies. I work in the head office, and I always recommend it. This solution will be purchased by other companies in the next financial year. Overall, I rate the solution ten out of ten.
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
Educational Organization
17%
Computer Software Company
15%
Financial Services Firm
9%
Government
8%
Educational Organization
20%
Computer Software Company
12%
Financial Services Firm
9%
Government
8%
Educational Organization
21%
Computer Software Company
11%
Manufacturing Company
8%
Financial Services Firm
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: June 2025.
858,469 professionals have used our research since 2012.