Name: Zero Trust Segmentation Platform
Rating: 4.8 (210 reviews)

Overview

Product Information on Zero Trust Segmentation Platform

Updated 14th October 2025

What is Zero Trust Segmentation Platform?

Illumio specializes in ransomware and breach containment, redefining how organizations contain cyberattacks and enable operational resilience. Powered by the Illumio AI Security Graph, our breach containment platform identifies and contains threats across hybrid multi-cloud environments – stopping the spread of attacks before they become disasters. Illumio enables Zero Trust, strengthening cyber resilience for the infrastructure utilizing microsegmentation, systems, and organizations.

Overall experience with Zero Trust Segmentation Platform

IT Associate

3B - 10B USD, Healthcare and Biotech

FAVORABLE

“Illumio ZTS Made Easy”

4.0

Apr 20, 2026

I have worked with Illumio for a little over two years now. My experience with their support and sales team has been very good. Their support staff has always seemed to have a good depth of knowledge and provided thorough answers to my questions and typically quick resolution to any problem I have had.

Head Of Cyber And Identity

500M - 1B USD, Insurance (except health)

CRITICAL

“Great concept, hard to get there.”

3.0

Sep 18, 2023

It is a great concept and vision, but very hard to hand over to developers in practice, administration is equivalent to AWS Security Groups. Has a good use case for on-prem network segregation, and low value add for cloud deployments compared to native cloud features.

Badges

Gartner Peer Insights recognizes vendors who meet or exceed both the market average Overall Experience and the market average User Interest and Adoption score through a Customers’ Choice distinction.

For Market:
Network Security Microsegmentation

About Company

Company Description

Illumio, the Zero Trust Segmentation company, stops breaches and ransomware from spreading across the hybrid attack surface. The Illumio ZTS Platform visualizes all traffic flows between workloads, devices and the internet, automatically sets granular segmentation policies to control communications, and isolates high-value assets and compromised systems proactively or in response to active attacks. Illumio protects organizations of all sizes, from Fortune 100 to small business, by stopping breaches and ransomware in minutes, saving millions of dollars in application downtime, and accelerating cloud and digital transformation projects.

Company Details

Company type

Private

Year Founded

2013

Head office location

Sunnyvale, United States

Website

https://illumio.com

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Key Insights

A Snapshot of What Matters - Based on Validated User Reviews

User Sentiment About Zero Trust Segmentation Platform

Reviewer Insights for: Zero Trust Segmentation Platform

Deciding Factors: Zero Trust Segmentation Platform Vs. Market Average

Performance of Zero Trust Segmentation Platform Across Market Features

Zero Trust Segmentation Platform Likes & Dislikes

My favorite feature of the product is the Traffic explorer allowing me to easily see all inbound and outbound traffic, the processes, services, or users initiating the traffic. Also, the ability to write policy and then view how it will impact traffic in draft mode before publishing the updated policy. There are some limitations to this feature related to outbound process-based rules to an IP list, but other than that it works great.

Visualisation of traffic flows is outstanding

I like the ability to visualize the segmentation of our workloads and to preview the effects of segmentation changes we plan on implementing. The System is intuitive and give us a great deal of control over our segmentation plan, down to the processes that run on each workload.

My biggest gripe with this solution is that label changes are instantaneous. If you change a label on a workload, you could inadvertently end up blocking required traffic. Making label changes a publishing event is something that has been asked for by myself and other customers I have talked to. So far, there seems to be no movement on adding this feature. Not having this feature can make label changes a very tedious task because you need to make sure to update policy everywhere that workload has access. For example, when we started out, we overused some role labels like R-APP, which is preventing us from getting some policies as granular as we would like. This could all be solved if a label change was publishable so you could change the label and then review traffic in draft mode to see where you need to update policy based on the new label prior to publishing the change.

Cost and complexity

Most changes in the Segmentation System are provisionable, which allows you to preview the effects of the proposed changes. A critical exception to this is label changes, with labels being the building blocks to the segmentation rules. Label changes are instantaneous and can leave you feeling a little blind to the cascading effects that may result. An additional shortcoming of the system concerns rule provisioning. Generally, you have a good idea of the scope of a rule being implemented, but there are times when the rule affects more workloads than anticipated, and there isn't a current way to list all of the workloads affected by a provisioned rule. One last shortcoming of the system concerns previewing the effects of rules constrained by outbound windows processes. Locking traffic down to an outbound process adds a level of security to traffic that requires a large port range, but we are currently unable to preview the effects of such a rule if the destination of the traffic is not managed by Illumio such as an IP Range. These shortcomings are in no way showstoppers, but they do take some of the visibility out of the system, which visibility for me is one of the strengths of Illumio's platform.

Top Zero Trust Segmentation Platform Alternatives

Peer Discussions

Zero Trust Segmentation Platform Reviews and Ratings

Recommended Gartner Insights

Market Guide for Network Security Microsegmentation

1B-10B USD

Healthcare and Biotech

Review Source

Illumio ZTS Made Easy

Illumio ZTS Segmentation Visualization and Management

Our Illumio support team is very responsive and engaged in our success with their product. They work hard to deliver updates and enhancements as needed and provide assistance with any issues we encounter.

IT Manager

Retail

Comprehensive Tool Enhances Visibility Across Azure, GCP, On-Premise and Kubernetes Assets

5.0

Apr 28, 2026

We finally have a tool that delivers comprehensive visibility across our Azure, GCP and On-Premise asset. The inclusion of Kubernetes deployments in certain cloud environments. This product significantly benefits administrators, application owners and technical teams alike. The support teams assigned to us have proven to be genuine experts in their field, and the tool itself is continously evolving, which is a major advantage.

Gov't/PS/Ed

Government

Extensive Review Finds Illumio Core/ZTS Effective for Large-Scale Segmentation Needs

Apr 14, 2026

Our organization went through a comprehensive review of over 20 zero trust segmentation platforms and we then selected the top three vendors for a proof of value/concept using real servers and application environments in our data centers. Illumio Core/ZTS unquestionably stood out above all of the others. From a technical perspective and from a company culture point of view the product and the company presented as mature and stable. All technical staff and sales staff were very knowledgeable, helpful and clearly had significant depth of industry experience.

Transportation

Ease of Implementation and Dashboard Functionality Praised; Agent Update Cycle Questioned

May 5, 2026

The service provided by support and engineers has been excellent. They have helped not just on issues but will help with knowledge requests and rules are correct to an extent. The knowledgebase is very extensive but easily searchable. Requests on their wish list, items that have come to fruition, meaning they actively listen to their customers. The product is consistently being improved over time, meaning R&D is continuously on-going. The product is quick to learn and has ease of use compared to other products evaluated. They have well defined parameters for blocking high-risk ports, which is a great value and helps reduce attack vectors even before full implementation across all servers. The account is assigned a Customer Success Advisor who checks in and provides updates about additional features, requests, and concerns. Free training videos are available along with live instructors, however at a cost. Overall, it has been an excellent experience.

Overview

Product Information on Zero Trust Segmentation Platform

What is Zero Trust Segmentation Platform?

Zero Trust Segmentation Platform Pricing

Zero Trust Segmentation Platform Product Images

Overall experience with Zero Trust Segmentation Platform

“Illumio ZTS Made Easy”

“Great concept, hard to get there.”

Badges

About Company

Company Description

Company Details

Key Insights

A Snapshot of What Matters - Based on Validated User Reviews

User Sentiment About Zero Trust Segmentation Platform

Reviewer Insights for: Zero Trust Segmentation Platform

Deciding Factors: Zero Trust Segmentation Platform Vs. Market Average

Performance of Zero Trust Segmentation Platform Across Market Features

Zero Trust Segmentation Platform Likes & Dislikes

Top Zero Trust Segmentation Platform Alternatives

Peer Discussions

Zero Trust Segmentation Platform Reviews and Ratings

Recommended Gartner Insights

About Company

Company Description

Company Details

User Sentiment About Zero Trust Segmentation Platform

Reviewer Insights for: Zero Trust Segmentation Platform

Deciding Factors: Zero Trust Segmentation Platform Vs. Market Average

Performance of Zero Trust Segmentation Platform Across Market Features

Zero Trust Segmentation Platform Likes & Dislikes

Top Zero Trust Segmentation Platform Alternatives

Zero Trust Segmentation Platform Reviews and Ratings

1. Akamai Guardicore Segmentation

2. VMware vDefend Firewall

3. Microsoft Azure

Illumio ZTS Made Easy

Illumio ZTS Segmentation Visualization and Management

Comprehensive Tool Enhances Visibility Across Azure, GCP, On-Premise and Kubernetes Assets

Extensive Review Finds Illumio Core/ZTS Effective for Large-Scale Segmentation Needs

Ease of Implementation and Dashboard Functionality Praised; Agent Update Cycle Questioned

4.8

(210 Ratings)

Rating Distribution

Customer Experience

Product Capabilities