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Aruba ClearPass vs Cisco Identity Services Engine (ISE) vs Forescout Platform 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
4.9
Aruba ClearPass offers strong ROI through enhanced security and management, but licensing needs and industry use affect results.
Sentiment score
7.1
Cisco Identity Services Engine enhances security, simplifies operations, and reduces costs while boosting productivity and ensuring regulatory compliance.
Sentiment score
6.4
Forescout Platform enhances security by automating risk remediation, identifying devices, and targeting vulnerabilities, leading to cost savings.
Using Aruba ClearPass has resulted in less engineering time compared to other products we've used.
Owner at Channelserve
The investment is huge for enterprise clients, but Aruba ClearPass makes processes easier.
Pre-Sales Consultant at a consultancy with 201-500 employees
Direct comparisons with Forescout reveal up to 30% to 40% difference in cost savings.
Service Line Manager (Service Operations Expert) - Network Access Control at a pharma/biotech company with 10,001+ employees
 

Customer Service

Sentiment score
7.3
Aruba ClearPass support is praised for expertise, though some note improvements needed in response time and escalation processes.
Sentiment score
6.7
Cisco ISE support is highly rated for knowledge and responsiveness but struggles with response times and communication challenges.
Sentiment score
6.8
Forescout Platform's customer service is responsive and knowledgeable but needs improvements in partner interactions and consistent service quality.
Portnox is one level up, as their customer support is outstanding.
Chief Digital Officer at Clarity AI
We have faced delays in the resolution of production issues after raising tickets, which impacts productivity.
Network Support Engineer at HDFC Life
If Aruba ClearPass is not working, then the organization is not working because this is the access control in the organization.
Presales Engineer, Solutions Architect
I rate the technical support as one out of ten.
Service Line Manager (Service Operations Expert) - Network Access Control at a pharma/biotech company with 10,001+ employees
Cisco support has pretty good teams for support and every time we had good answers and we could somehow solve the issues we had.
Network and Technology Information Manager at Akkodis
Sometimes it's challenging to identify which support team is responsible for certain issues, which is a significant concern.
Solution Architect, Presales Engineer at a computer software company with 51-200 employees
We have had experience with their technical support and must pay additionally for maintenance, support, and regional service.
IT Head at a tech services company with 11-50 employees
 

Scalability Issues

Sentiment score
8.1
Aruba ClearPass is praised for its scalability, supporting diverse user numbers and environments with flexibility in licensing and virtualization.
Sentiment score
7.3
Cisco ISE supports smooth scalability for diverse enterprises, but virtualization and hardware challenges may require strategic solutions.
Sentiment score
7.6
Forescout Platform is praised for scalability and adaptability, accommodating various environments and needs despite network issues.
I believe the scalability of ClearPass is rated as ten out of ten.
Senior Security & Infra Technology Systems Engineer at BARQ Systems
Everything will be handled when you add new users because all configurations are deployed from the beginning.
Network Product Manager/ Senior Presales engineer at a computer software company with 501-1,000 employees
In our environment, ClearPass handles up to 100,000 users, which is better than some other NAC solutions like Fortinox that scale up to 25,000.
Network Engineer at a outsourcing company with 11-50 employees
Factors like architecture, business nature, and legal limitations such as GDPR affect it.
Service Line Manager (Service Operations Expert) - Network Access Control at a pharma/biotech company with 10,001+ employees
However, you can have some latency issues depending on where your devices are.
Network and Technology Information Manager at Akkodis
Scalability can be costly since a physical box needs to be installed for every site.
Director, International IT Infrastructure Support & Information Security at a manufacturing company with 1,001-5,000 employees
 

Stability Issues

Sentiment score
7.9
Aruba ClearPass is highly stable, praised for reliability, with occasional upgrade issues often due to misconfigurations, not system flaws.
Sentiment score
7.7
Cisco ISE is stable and reliable, but large deployments may face challenges, requiring proper configuration and effective support.
Sentiment score
8.0
Forescout Platform is highly stable, with minor issues resolved quickly by effective support, earning user confidence in its performance.
I have experienced more than three years without zero downtime with Aruba ClearPass.
Senior Enterprise Customer Solutions Specialist at a comms service provider with 1,001-5,000 employees
There are issues with some versions, especially in integrating with AD and SSL configurations over port sixty-three.
Network Support Engineer at HDFC Life
However, there are disadvantages when it is not on-premises, as every NAC suffers from it if it is not on-premises.
Presales Engineer, Solutions Architect
Cisco Identity Services Engine (ISE) is considered very reliable and stable.
Solution Architect, Presales Engineer at a computer software company with 51-200 employees
The stability of Cisco Identity Services Engine (ISE) is poor for certain use cases, like authentication.
Service Line Manager (Service Operations Expert) - Network Access Control at a pharma/biotech company with 10,001+ employees
Sometimes when we have upgrades or failovers with Cisco Identity Services Engine (ISE), we had some minor issues.
Network and Technology Information Manager at Akkodis
I would rate its stability as 9.5 out of ten.
Director, International IT Infrastructure Support & Information Security at a manufacturing company with 1,001-5,000 employees
 

Room For Improvement

Aruba ClearPass needs simplified licensing, UI, better integration, enhanced features, and improved support and documentation resources.
Cisco ISE is hindered by complexity, compatibility issues, costly licensing, and needs improvements in usability, support, and performance.
Forescout users seek enhanced memory management, detection, integration, reporting, interfaces, AI features, affordability, and improved support.
The language and policy enforcement mechanisms are not clear, making it difficult to use the product effectively.
Project Manager at a tech consulting company with 51-200 employees
It is also better to improve threat intelligence for built-in threat detection and prevention.
Network Engineer at a outsourcing company with 11-50 employees
A more streamlined menu of licensing options would be helpful.
Owner at Channelserve
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).
Technical Services Lead at Telenet Solutions
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.
Solution Architect, Presales Engineer at a computer software company with 51-200 employees
They are very poor in asset classification and should focus on improving the preauthentication profiling, especially for NAC use cases.
Service Line Manager (Service Operations Expert) - Network Access Control at a pharma/biotech company with 10,001+ employees
It would help if during integration, an admin user could check the password or credential used, as they currently cannot see the password after it is entered and saved.
Security Consultant at a tech vendor with 10,001+ employees
Forescout Platform could enhance its integration of AI to improve IoT and OT device security to better meet our needs.
IT Head at a tech services company with 11-50 employees
The console is a fat client, and a web interface would be preferable.
Director, International IT Infrastructure Support & Information Security at a manufacturing company with 1,001-5,000 employees
 

Setup Cost

Aruba ClearPass's complex licensing can be costly, with better affordability than Cisco, necessitating careful initial licensing understanding.
Cisco ISE pricing is complex and costly, with strong vendor partnerships needed for discounts, favoring large enterprises over smaller businesses.
Forescout Platform is costly but offers scalable value, with flexible licensing based on devices and potential discounts available.
Achieving the best price requires careful selection from a menu of licensing options.
Owner at Channelserve
We cannot mix in prices, and of course, prices are going higher.
IT Network Operations Manager at KEDS
Aruba ClearPass is a premium product with higher pricing, which seems unnecessary given its complexity.
Project Manager at a tech consulting company with 51-200 employees
Compared to other solutions like HPE ClearPass, Cisco is more costly, and the conversation suggests a possible forty percent price gap compared to competitors.
Solution Architect, Presales Engineer at a computer software company with 51-200 employees
The license costs can range between $50,000 to $100,000 per year for enterprises.
Technical Services Lead at Telenet Solutions
Cloud solutions are expensive, while on-prem setups with shared environments are cheaper but not effective.
Service Line Manager (Service Operations Expert) - Network Access Control at a pharma/biotech company with 10,001+ employees
Installing a physical box on each site can be expensive.
Director, International IT Infrastructure Support & Information Security at a manufacturing company with 1,001-5,000 employees
The overall pricing of Forescout Platform is reasonable for the functionality it provides.
IT Head at a tech services company with 11-50 employees
The price of Forescout Platform is reasonable and not overly costly.
Security Consultant at a tech vendor with 10,001+ employees
 

Valuable Features

Aruba ClearPass provides robust network access control with features like role-based management, third-party integration, and user-friendly configuration.
Cisco ISE excels in security, network access control, and integration, offering adaptability, scalability, and centralized management for organizations.
Forescout Platform offers agentless network access, endpoint visibility, and seamless integration for efficient security and compliance management.
In Aruba ClearPass, you can have control of all authentication in the company.
Senior Enterprise Customer Solutions Specialist at a comms service provider with 1,001-5,000 employees
The ClearPass solution has reduced the amount of engineering time compared to previous solutions, making it more efficient for our purposes.
Owner at Channelserve
The most effective feature for us is the OnGuard feature.
Senior Security & Infra Technology Systems Engineer at BARQ Systems
Cisco Identity Services Engine (ISE) offers authentication using RADIUS, enhancing network security by separating and segregating networks.
Technical Services Lead at Telenet Solutions
There is value because it helps us secure the network and prevents certain things from happening which could cause financial loss.
Ag Systems & Networks Head at UNBS
The adaptability of Cisco Identity Services Engine (ISE) policy enforcement can fit to the site we have depending on which kind of devices we have on site and then the needs for authentication, granting access and then assigning each device into its correct network for segmentation.
Network and Technology Information Manager at Akkodis
One of the most valuable features of Forescout Platform is its automation, particularly the ability to automate remediation of rogue devices on the network.
Director, International IT Infrastructure Support & Information Security at a manufacturing company with 1,001-5,000 employees
The most effective feature has been network access management, which has been crucial for our primary use cases in the organization.
IT Head at a tech services company with 11-50 employees
When it comes to the effectiveness of Forescout Platform's real-time visibility in reducing the overall attack surface, I give it a 9 out of 10.
Security Consultant at a tech vendor with 10,001+ employees
 

Mindshare comparison

As of April 2026, in the Network Access Control (NAC) category, the mindshare of Aruba ClearPass is 20.8%, down from 24.4% compared to the previous year. The mindshare of Cisco Identity Services Engine (ISE) is 21.7%, down from 27.1% compared to the previous year. The mindshare of Forescout Platform is 10.3%, down from 13.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Access Control (NAC) Mindshare Distribution
ProductMindshare (%)
Aruba ClearPass20.8%
Cisco Identity Services Engine (ISE)21.7%
Forescout Platform10.3%
Other47.2%
Network Access Control (NAC)
 

Featured Reviews

Darko Skurla - PeerSpot reviewer
Senior Enterprise Customer Solutions Specialist at a comms service provider with 1,001-5,000 employees
Role-based policies have simplified secure access control for all users and smart devices
I do not know about the functionality of Aruba ClearPass integration with a third party. If you ask me if there is support for Zebra and for different IoT devices, they have it. However, I do not know how to describe integration with other products. Aruba ClearPass can act as a RADIUS server and it can connect to the domain RADIUS server, for example. The biggest problem is when a customer does not know what they want with Aruba ClearPass. I can recommend Aruba ClearPass to other users because it is very stable. My review rating for this product is ten out of ten.
NF
Network and Technology Information Manager at Akkodis
Has improved authentication management and simplified visitor network access
The log capacity in Cisco Identity Services Engine (ISE) could be enhanced because today natively on the ISE can only have a look at the logs from the day before. You cannot search into the oldest logs; you have to use another tool for that. This can be blocking if you don't have any log consolidation solution. To do a search for an issue or something that happened two days ago, you cannot search directly in there. The capacity of Cisco Identity Services Engine (ISE) could be enhanced. Something between one week and one month for the log capacity would be nice.
AshishKumar Rai - PeerSpot reviewer
Security Consultant at a tech vendor with 10,001+ employees
Comprehensive visibility has strengthened endpoint control and automated threat response across networks
When it comes to improving Forescout Platform, I have faced some issues recently, particularly with the switch integration part. When integrating a switch, it asks for the vendor type, and often it does not match. For example, one series of HP switches may not be found in that vendor list. This leads to frustration because you have to check again with different HP models, and once you integrate a switch, you cannot edit the vendor list without removing it. Other issues are being worked on, particularly related to switch integration. I believe they will be fixed in the next upgrade or patch fix. There are no major issues, but the configuration changes needed for the switch model are necessary, and I think it would help if during integration, an admin user could check the password or credential used, as they currently cannot see the password after it is entered and saved.
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Top Industries

By visitors reading reviews
Computer Software Company
8%
Government
8%
Manufacturing Company
8%
University
7%
Manufacturing Company
11%
Computer Software Company
8%
Financial Services Firm
8%
Government
8%
Manufacturing Company
12%
Financial Services Firm
11%
Computer Software Company
8%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business44
Midsize Enterprise25
Large Enterprise33
By reviewers
Company SizeCount
Small Business45
Midsize Enterprise32
Large Enterprise91
By reviewers
Company SizeCount
Small Business30
Midsize Enterprise10
Large Enterprise44
 

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 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 Aruba ClearPass?
If you are looking at the base installation, then it was a very straightforward process, which I would rate an eight ...
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 do you like most about Cisco ISE (Identity Services Engine)?
Cisco ISE is a comprehensive solution that allows you to control access to network resources granularly based on poli...
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...
 

Also Known As

Avenda eTIPS
Cisco ISE
Forescout Platform, CounterACT for Endpoint Compliance, ForeScout CounterACT
 

Overview

 

Sample Customers

Consulate Health Care, Los Angeles Unified School District, Science Applications International Corp (SAIC), San Diego State University, KFC, ACTS Retirement-Life Communities
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
Find out what your peers are saying about Hewlett Packard Enterprise, Cisco, Fortinet and others in Network Access Control (NAC). Updated: March 2026.
885,728 professionals have used our research since 2012.