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What are Mainframes?

Mainframes solutions mindshare

As of February 2026, in the Mainframes category, the mindshare of Fujitsu Server GS21 is 21.4%, down from 30.4% compared to the previous year. The mindshare of Unisys ClearPath Dorado is 18.8%, up from 12.3% compared to the previous year. The mindshare of IBM Z is 32.8%, down from 39.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Mainframes Market Share Distribution
ProductMarket Share (%)
IBM Z32.8%
Fujitsu Server GS2121.4%
Unisys ClearPath Dorado18.8%
Other27.0%
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