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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:
 

Categories and Ranking

Illumio
Ranking in Cloud and Data Center Security
6th
Ranking in Microsegmentation Software
2nd
Average Rating
8.0
Reviews Sentiment
6.4
Number of Reviews
11
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.

Quotes from Members

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

Pros

"The solution helps to maintain logs and monitor activities. It also helps us with access management. The tool helps us to secure organizational data that include files."
"Customer support is excellent."
"The most valuable feature of Illumio Adaptive Security Platform is monitoring. When I have no requirement from the other application, I can use the web block traffic to build."
"The product provides visibility into how the applications communicate and how the network protocols are being used."
"The tool helps with my company's security posture."
"The solution is easy to use."
"The flexibility of the solution is its most valuable feature."
"The dependency map is most valuable feature."
"It's a beneficial tool."
"VMware NSX has the ability to create networks in software."
"The most valuable feature of VMware NSX is the load balancing and routing of firewall rules. Many of the features are beneficial."
"The most powerful feature of VMware NSX is the micro-segmentation that allows us to separate the different protocols our application works with."
"It is a stable solution...The solution's initial setup process was easy."
"We are happy with the scalability."
"We like that everything is integrated."
"The most valuable feature of VMware NSX is the ease of use and its user friendly. For example, it is simple to change the subnet masks."
 

Cons

"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."
"I would like to see better data security in the product."
"It requires a low-level re-architecting of the product."
"Some of the features that can be improved is offer additional guidance on creating an effective and risk-free tagging policy would be highly beneficial."
"The solution is very basic and doesn't do anything other than the orchestration of layer four endpoint firewall rules."
"We need more details on areas where there is an error or a traffic blockage. I would like the tool to offer a more detailed view."
"The interaction we've had with the support team hasn't been ideal. Technical support should be improved."
"Illumio Adaptive Security Platform could improve by supporting more operating systems. For example, Cisco and Apache appliances."
"It's a good product, but the way that it has got so many multiple levels that need to be purchased makes it expensive and cumbersome."
"Everybody needs a network to connect to, and VMware doesn't readily provide one."
"VMware NSX can improve the migration tools from the older environments to the new environment. For example, the NSX-V has become a legacy solution, it's out of support, but customers are able to keep using it. For migration purposes, it's better for them to provide a proper tool. It will be easy to migrate from an old environment to a new one."
"Occasionally the licensing is not very clear. They should make it easier to understand."
"Sometimes we face issues when a server is compromised or we have an infection. The isolation feature helps, but we need to work more on this aspect."
"They have some limitations in the firewall features as compared to the on-prem or dedicated hardware appliance. They can add more features, such as IPS and IDS, to the cloud firewall."
"The initial configuration and integration within our existing environment were not easy. The configuration process was a bit complex, specifically during the initial setup."
"It could be more user-friendly, but it's manageable. When we add a specific node to this particular NSX and the configuration changes, it won't push through the errors where required, but it'll accept it. However, while using it, we will have issues. It can also be more stable."
 

Pricing and Cost Advice

"There is a subscription needed to use Illumio Adaptive Security Platform and we pay every three years. Overall the solution is expensive."
"The product's pricing is around 10,000-15,000 USD. The pricing is on a yearly basis."
"VMware NSX isn't cheap."
"The tool's pricing is reasonable."
"The solution is free and the price for the support can be expensive."
"VMware has a subscription and perpetual license. In the New Year, they're changing many things about the licensing model. Previously, NSX was licensed according to the number of sockets inside the appliance, so we bought VMware licenses based on that. However, that may have changed this year. We are still contacting the vendors to understand the new licensing strategy."
"I would rate the pricing of VMware NSX as seven out of ten"
"There is a license required for this solution, we pay annually."
"The price is significantly high and it can be a hurdle for many potential users."
"The pricing model for VMware NSX is good."
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Top Industries

By visitors reading reviews
Financial Services Firm
19%
Computer Software Company
14%
Manufacturing Company
7%
Government
6%
Computer Software Company
15%
Financial Services Firm
12%
Government
8%
Manufacturing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business3
Midsize Enterprise1
Large Enterprise7
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.
868,787 professionals have used our research since 2012.