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Cisco Identity Services Engine (ISE) vs Portnox comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jun 15, 2025

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
7.3
Portnox CORE improved network visibility, security, and efficiency, reducing costs and enhancing decision-making through detailed analytics and automated features.
Direct comparisons with Forescout reveal up to 30% to 40% difference in cost savings.
If you were moving from a traditional on-premise NAC that was 100% managed by the IT department, there would be great savings in going to a cloud-based NAC with Portnox.
 

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
7.3
Portnox customer service is highly rated for responsiveness and efficiency, with room for improvement in local services and communication.
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.
They respond very immediately and provide detailed, amazing support.
I was seeing weird things, and they were able to explain things to me and help me quickly find a resolution.
They resolved issues quickly and provided clear explanations.
 

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
7.5
Portnox is scalable and flexible, supporting growth efficiently, though larger setups may require more resources, rated seven to ten.
Factors like architecture, business nature, and legal limitations such as GDPR affect it.
 

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
7.6
Portnox offers reliable uptime, though CORE users report issues with vendor support and configuration, while Clear performs smoothly.
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.
The product itself is available and its uptime is 100%.
In the four years that I used Portnox, if it crashed or the server crashed, that would not have been more than once.
 

Room For Improvement

Cisco ISE struggles with setup complexity, non-intuitive UI, integration challenges, upgrade issues, and demands for better features.
Portnox can improve with better GUI, integration, scalability, support, licensing, false positives, documentation, and Wi-Fi and AI analytics.
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.
Ideally, we should be able to search for any MAC address in the database, regardless of its authentication status, to see all its associated groups and potential conflicts.
When I'm doing filtering at times, it doesn't filter the items properly.
They don't have much support during Asia Pacific hours.
 

Setup Cost

Cisco ISE offers strong features with complex, expensive pricing, but discounts through partnerships can help alleviate costs.
Portnox offers scalable, competitive pricing based on ports, with annual fees, appreciated value, but no perpetual license option.
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.
If you compare Portnox with all other well-known standard products, it is the cheapest.
The pricing is a bit high, possibly due to the cloud features and running instances across regions like the US, Asia, and Europe.
It is a bit on the high side, but considering the cloud features and how much it costs to run the instance in the cloud, it is not unreasonable.
 

Valuable Features

Cisco ISE provides comprehensive access control, seamless integration, and enhanced security with intuitive management for versatile network operations.
Portnox provides scalable, agentless network visibility with intuitive dashboards and automated security integration, enhancing efficiency and endpoint compliance.
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.
It's notable how Portnox has improved operational efficiency.
It is very easy to implement on our current network hardware.
We use Meraki for our switching, making it simple to point all our networks and offices to Portnox.
 

Categories and Ranking

Cisco Identity Services Eng...
Ranking in Network Access Control (NAC)
1st
Average Rating
8.2
Reviews Sentiment
6.7
Number of Reviews
143
Ranking in other categories
Cisco Security Portfolio (1st)
Portnox
Ranking in Network Access Control (NAC)
6th
Average Rating
8.0
Reviews Sentiment
7.4
Number of Reviews
22
Ranking in other categories
ZTNA (11th), Passwordless Authentication (1st)
 

Mindshare comparison

As of July 2025, in the Network Access Control (NAC) category, the mindshare of Cisco Identity Services Engine (ISE) is 25.1%, down from 30.7% compared to the previous year. The mindshare of Portnox is 3.9%, up from 2.1% 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.
Scott Kerr - PeerSpot reviewer
It is seamless and integrates well with our Azure setup
We use devices like PLCs and controllers, and when we receive a request to allow one on the network, we bypass typical authentication, associate it with a group account, and push it to a firewalled VLAN. However, problems arise when the same MAC address is requested for a different project. Our current system only finds authenticated MAC addresses, making it difficult to troubleshoot when the same device is used for multiple purposes. Ideally, we should be able to search for any MAC address in the database, regardless of its authentication status, to see all its associated groups and potential conflicts.
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Educational Organization
15%
Financial Services Firm
9%
Government
8%
Manufacturing Company
15%
Computer Software Company
12%
Financial Services Firm
12%
Healthcare Company
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 adapt the policies to VPN access, wired, or wireless access. You can securely ...
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 cannot secure the port if a device does not support 802.1x. Cameras, badge readers, ...
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 someone plugs in with a device that is not allowed and will block it. The user exper...
What do you like most about Portnox CORE?
It's easy to manage and troubleshoot thanks to the lightweight components.
What is your experience regarding pricing and costs for Portnox CORE?
It's not cheap. It's not expensive. It's in the middle, so I'll probably give it a seven out of ten, where one is cheap and ten is expensive.
What needs improvement with Portnox CORE?
We have been having some issues with it. That's why we're considering migrating to Portnox Clear due to some limitations with CORE. At the end of the day, Portnox Clear's capabilities are much more...
 

Also Known As

Cisco ISE
Access Layers Portnox, Portnox CLEAR
 

Interactive Demo

Demo not available
 

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
Data Realty, Royal London, Wales Millennium Centre, McLaren Construction Group, EL AL Israeli Airlines, 
Find out what your peers are saying about Cisco Identity Services Engine (ISE) vs. Portnox and other solutions. Updated: June 2025.
860,168 professionals have used our research since 2012.