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Illumio vs VMware NSX comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jul 27, 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
7.4
Illumio enhances operations with traffic visibility and logs, offering cost-effective security and high ROI, despite early measurement stages.
Sentiment score
6.4
VMware NSX enhances infrastructure efficiency, CAPEX savings, cybersecurity, and ROI, but initial costs and security effectiveness have mixed reviews.
Illumio is known to be the cheapest solution among the security solutions we evaluated.
 

Customer Service

Sentiment score
1.0
Illumio customer service experiences mixed reviews, with inconsistent responsiveness and empathy, suggesting a need for improvement in support.
Sentiment score
6.7
VMware NSX customer service is praised for efficiency and expertise, but improvements in accessibility and responsiveness are desired.
Even if we raise an issue on non-working days like Saturdays or Sundays, we receive prompt responses.
From my experience, they are very responsive.
They were always helpful.
They are quick and understand things easily, so the support is aligned very effectively.
Our technicians have a good support experience from the company.
 

Scalability Issues

Sentiment score
7.6
Illumio scales effectively for global clusters, supporting diverse team sizes and cloud expansions without significant issues.
Sentiment score
7.7
VMware NSX is praised for its scalability, robust performance, and efficient network integration, despite some complexity in scaling.
Scaling it to a large level is not an issue for us.
There is a high level of satisfaction with its ability to scale.
 

Stability Issues

Sentiment score
8.0
Illumio is highly stable, with users rating its reliable performance and SaaS option around 8.5 out of 10.
Sentiment score
8.1
VMware NSX is highly stable, with strong performance, scalability, and frequent updates addressing most bugs and integration concerns.
Illumio is a stable solution with no glitches or bugs reported, making it a reliable product for us.
The product performs at 99% efficiency without any showstoppers or significant issues.
For stability, I would rate VMware NSX as a nine out of ten.
 

Room For Improvement

Illumio needs better support, enhanced integration, security improvements, detailed guidance, OS compatibility, automation, and comprehensive firewall management.
VMware NSX faces challenges in costs, complexity, and user satisfaction, needing enhancements in automation, scalability, and security features.
There could also be more examples of how the automations can be done using Illumio.
That's why I'm looking for comparisons with other products.
There should be an option to upgrade from the console to the latest version instead of performing manual upgrades.
The initial configuration and integration within our existing environment were not easy.
The pricing for the product is another area for improvement as I'm not satisfied nowadays.
The licensing model is expensive and could be more flexible, especially after Broadcom bought VMware.
 

Setup Cost

Illumio's pricing varies by workloads, with annual costs of 10,000-15,000 USD, often considered expensive or cost-effective.
VMware NSX is viewed as costly, with complex licensing and high initial costs, particularly impacting smaller organizations.
I know that Illumio is the cheapest solution in the security area.
I think it's not very expensive if we compare it with Guardicore.
The cost of VMware NSX is considered high.
VMware NSX is a little higher in price compared to the competition.
There is room for improvement in terms of pricing.
 

Valuable Features

Illumio offers application mapping, traffic monitoring, and policy enforcement, enhancing security with network flow visibility and protocol blocking.
VMware NSX offers enhanced security, seamless management, and flexibility with automation, scalability, and integration for cloud and on-premises solutions.
Illumio helps in audit purposes by saving data and showing blocked traffic, ensuring no outside traffic is allowed.
The most important feature is the traffic review analysis, where we use the draft view and the reported view that helps us understand how the application interacts with other applications in the environment, and based on that, we are able to define the policies.
The dependency map is the most valuable aspect.
Micro-segmentation enhances security and provides more secure data in your data center.
The most powerful feature of VMware NSX is the micro-segmentation that allows us to separate the different protocols our application works with.
I value the ability to dynamically configure our network on the fly using VMware NSX.
 

Categories and Ranking

Illumio
Ranking in Cloud and Data Center Security
6th
Ranking in Microsegmentation Software
2nd
Average Rating
8.2
Reviews Sentiment
5.7
Number of Reviews
12
Ranking in other categories
Cloud Workload Protection Platforms (CWPP) (13th)
VMware NSX
Ranking in Cloud and Data Center Security
3rd
Ranking in Microsegmentation Software
1st
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
106
Ranking in other categories
Network Virtualization (2nd), Network Traffic Analysis (NTA) (7th), Network Detection and Response (NDR) (9th), Network Automation (5th)
 

Mindshare comparison

As of October 2025, in the Cloud and Data Center Security category, the mindshare of Illumio is 22.8%, down from 24.1% compared to the previous year. The mindshare of VMware NSX is 11.5%, down from 16.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Cloud and Data Center Security Market Share Distribution
ProductMarket Share (%)
VMware NSX11.5%
Illumio22.8%
Other65.7%
Cloud and Data Center Security
 

Featured Reviews

Alark Singh - PeerSpot reviewer
Visual traffic interface aids in network micro-segmentation while a streamlined update option enhances process efficiency
The strongest aspect of Illumio is the visual traffic interface, which allows us to see all traffic that communicates with our servers and allied companies. We can write rules that can be embedded into the IP table, making it easy to handle. Illumio enables us to see network flows, traffic sources, and destinations. The policy generation and enforcement capabilities are valuable, allowing for selective enforcement. Illumio helps in audit purposes by saving data and showing blocked traffic, ensuring no outside traffic is allowed.
TAIYAB HASAN - PeerSpot reviewer
Has improved network visibility and security through micro-segmentation and SDN capabilities
This feature gives us flexibility and allows us to manage everything under one pane. We can see everything on one console, including network operations and behavior. Monitoring and security are among the best features for VMware NSX. For micro-segmentation, it's integrated with our endpoint security. If there are any issues with servers or VMs, it notifies us so we can isolate the servers and investigate. It provides distributed security features such as firewall and intrusion, IDS, IPS. The security level with IPS and IDS in VMware NSX is excellent. It also provides logical switching and routing which gives an extra layer for Layer 2 and Layer 3 switching requirements. The solution provides flexibility, automation, and self-service capabilities, resulting in cost savings as extensive expertise isn't required. Once automation and self-service are implemented, many tasks can be completed automatically. Load balancing is another excellent feature. Multiple servers can run on load balancing features, which is particularly useful since we have many application servers running. Sharing loads between servers provides the best performance.
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Top Industries

By visitors reading reviews
Financial Services Firm
18%
Computer Software Company
14%
Manufacturing Company
8%
Insurance Company
6%
Computer Software Company
14%
Financial Services Firm
12%
Manufacturing Company
9%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business3
Midsize Enterprise1
Large Enterprise8
By reviewers
Company SizeCount
Small Business33
Midsize Enterprise23
Large Enterprise69
 

Questions from the Community

What do you like most about Illumio Adaptive Security Platform?
The features that I have found most useful is the ability to centralize all the rules and then distribute them across various locations. However, I've encountered challenges related to tagging poli...
What is your experience regarding pricing and costs for Illumio Adaptive Security Platform?
I do not have specific knowledge about pricing details as it is handled by upper management. I know that Illumio is the cheapest solution in the security area.
What needs improvement with Illumio Adaptive Security Platform?
There should be an option to upgrade from the console to the latest version instead of performing manual upgrades. This would be more helpful to streamline processes.
What are the biggest differences between Cisco ACI and VMware NSX?
There are some very major differences between both the Products and to name a few. -Cisco ACI have physical network gear (9K Switches) where the Code runs in ACI Policy Mode & the UCS server wh...
What are the biggest differences between Cisco ACI and VMware NSX?
Once you know your way around the Cisco ecosystem, using Cisco ACI is not so difficult. It is a global product, so when you change one interface, changes are automatically reflected on every switch...
What do you like most about VMware NSX?
The product has valuable features for security and network extension.
 

Also Known As

Illumio Adaptive Security Platform, Illumio ASP
VMware Nicira, Lastline Defender
 

Overview

 

Sample Customers

Plantronics, NTT Innovation Institute Inc.
City of Avondale, Lumeta, Kroll Ontrack, Heartland Payment Systems, Baystate Heallth, Exostar, Tribune Media, iGATE, NTT Communications, Synergent, California Natural Resources Agency, Bloomington Public Schools, Columbia Sportswear, Join Experience S.A, Schuberg Philis
Find out what your peers are saying about Illumio vs. VMware NSX and other solutions. Updated: September 2025.
871,358 professionals have used our research since 2012.