IBM Z Ratings (September 2025)
This page breaks down IBM Z ratings from all verified review sources to give you a clear, unbiased view of what real users think in September 2025.
We’ve aggregated the latest scores from all major platforms like Trustpilot, G2, Capterra and many more to help you understand IBM Z’s overall reputation. This data-driven overview will show you exactly how IBM Z is rated - including how it compares to competitors.
IBM Z's Overall Rating Summary
- Average Rating:4.2/5
- Total Reviews:448 reviews
- Sources:G2, Capterra, Trustradius, Gartner, Trustpilot
- Last updated:September 1, 2025
IBM Z Ratings by Source
| Platform | Rating | Reviews | Last Update |
|---|---|---|---|
 G2 | 4.5/5 | 83+ reviews | 01.09.25 |
 Capterra | 4/5 | 1+ reviews | 01.09.25 |
 Trustradius | 4.5/5 | 134+ reviews | 01.09.25 |
 Gartner | 4.5/5 | 155+ reviews | 01.09.25 |
 Trustpilot | 2.9/5 | 75+ reviews | 06.03.25 |
What is IBM Z?
IBM Z® is a family of modern infrastructure that runs enterprise operating systems and IBM Z systems software, delivering security, resiliency, performance, scalability, and sustainability. The IBM z16™ platform, powered by the IBM Telum® processor, enables AI inferencing at unprecedented speed and scale, while IBM watsonx Code Assistant™ for Z simplifies and accelerates application modernization through generative AI. IBM Z offers solutions in AI, hybrid cloud, mainframe application modernization, sustainability, security, resiliency, DevOps, and AIOps.
🤔 IBM Z vs Competitors: How Do Ratings Compare?
Check out IBM Z AlternativesFrequently Asked Questions
How trustworthy is IBM Z?
According to Gartner and Trustradius review sites IBM Z holds ratings of 4.5/5 and 4.5/5 respectively from 289 reviews, indicating that users consistently find value and reliability in the platform as of September 2025.
How many stars is IBM Z rated?
IBM Z has an average star rating of 4.2 out of 5 stars based on average of 448 reviews as of September 2025.
Where does the rating data come from?
The ratings are pulled from IBM Z public reviews pages on platforms: G2, Capterra, Trustradius, Gartner, Trustpilot. We update these ratings monthly to ensure they reflect the most current customer feedback.
How overall average rating for IBM Z is calculated?
The overall average rating is calculated by taking the weighted average of all ratings, using the total reviews count from each platform as the weight.