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IBM Z Reviews

Vendor: IBM

5.0 out of 5

1 review
100% willing to recommend

What is IBM Z?

IBM Z mainframes deliver millisecond response time, extreme reliability, near 100% uptime and the world’s best security.

IBM Z is the #1 ranked solution in top Mainframes. PeerSpot users give IBM Z an average rating of 10.0 out of 10. IBM Z is most commonly compared to Fujitsu Server GS21: IBM Z vs Fujitsu Server GS21. IBM Z is popular among the large enterprise segment, accounting for 61% of users researching this solution on PeerSpot. The top industry researching this solution are professionals from a computer software company, accounting for 15% of all views.

IBM Z mindshare

As of August 2025, the mindshare of IBM Z in the Mainframes category stands at 38.3%, down from 39.6% compared to the previous year, according to calculations based on PeerSpot user engagement data.

Mainframes

Top industries

By visitors reading reviews

Computer Software Company

15%

Financial Services Firm

14%

University

12%

Manufacturing Company

Retailer

Media Company

Government

Educational Organization

Healthcare Company

Non Profit

Legal Firm

Construction Company

Insurance Company

Marketing Services Firm

Outsourcing Company

Real Estate/Law Firm

Consumer Goods Company

Program Development Consultancy

Aerospace/Defense Firm

Recreational Facilities/Services Company

Renewables & Environment Company

Hospitality Company

Comms Service Provider

Logistics Company

Compare IBM Z with alternative products

Learn more about IBM Z

The newest mainframe, IBM z14 (z14), is designed for trusted digital experiences. This enterprise system delivers pervasive encryption, stronger clouds, real time insights, machine learning and transparent blockchain.