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IBM Z Reviews

Vendor: IBM
5.0 out of 5
Badge Ranked 1

What is IBM Z?

IBM Z mindshare

As of July 2026, the mindshare of IBM Z in the Mainframes category stands at 31.5%, down from 37.9% compared to the previous year, according to calculations based on PeerSpot user engagement data.
Mainframes Mindshare Distribution
ProductMindshare (%)
IBM Z31.5%
Unisys ClearPath Dorado19.3%
Fujitsu Server GS2119.2%
Other30.0%
Mainframes
 
 
Key learnings from peers

Valuable Features

Room for Improvement

Top industries

By visitors reading reviews
Financial Services Firm
13%
Government
11%
Media Company
8%
Outsourcing Company
6%
Manufacturing Company
6%
Educational Organization
6%
Computer Software Company
6%
Retailer
6%
University
5%
Non Profit
5%
Legal Firm
3%
Hospitality Company
3%
Real Estate/Law Firm
3%
Healthcare Company
3%
Performing Arts
2%
Program Development Consultancy
2%
Energy/Utilities Company
2%
Recreational Facilities/Services Company
2%
Renewables & Environment Company
2%
Insurance Company
2%
Consumer Goods Company
2%
Logistics Company
2%

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IBM Z customers

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IBM Z Reviews Summary
Author infoRatingReview Summary
Manager CICS Support at Blue Cross Blue Shield of Illinois5.0I found this system excellent for batch DB online use, processing mission-critical apps. Its ability to handle heavy mixed workloads is valuable. I'd like a more graphical UI for system changes, though IBM is addressing it via OSMF.
DS
Doyle Skipper
Manager CICS Support at Blue Cross Blue Shield of Illinois
Apr 3, 2019
Provides processing of mission critical applications.