Companies using IBM System z Mainframe

We have data on 8,911 companies that use IBM System z Mainframe. The companies using IBM System z Mainframe are most often found in United States and in the Computer Software industry. IBM System z Mainframe is most often used by companies with >10000 employees and >1000M dollars in revenue. Our data for IBM System z Mainframe usage goes back as far as 5 years and 1 months.

If you’re interested in the companies that use IBM System z Mainframe, you may want to check out IBM 3090 and IBM ES/9000 as well.

Who uses IBM System z Mainframe?

Some of the companies that use IBM System z Mainframe include:
Company Website Country Revenue Company Size
U.S. Security Associates, Inc. ussecurityassociates.com United States >1000M >10000
PROTEGE PARTNERS L L C protegepartners.com United States 1M-10M 10-50
QA Limited qa.com United Kingdom 200M-1000M 1000-5000
Willis Towers Watson willistowerswatson.com United Kingdom >1000M >10000
Stanley Black & Decker, Inc. stanleyblackanddecker.com United States >1000M >10000

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IBM System z Mainframe Market Share and Competitors in Mainframe Computers

We use the best indexing techniques combined with advanced data science to monitor the market share of over 12,500 technology products, including Mainframe Computers. By scanning billions of public documents, we are able to collect deep insights on every company, with over 100 data fields per company at an average. In the Mainframe Computers category, IBM System z Mainframe has a market share of about 81.0%. Other major and competing products in this category include:

IBM System z Mainframe
Mainframe Computers
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8,911
Companies using IBM System z Mainframe
IBM System z Mainframe market share in Mainframe Computers is about 80.96%
Mainframe Computers

What is IBM System z Mainframe?

IBM System z is a family name used by IBM for all of its mainframe computers. The IBM zEnterprise System (zEnterprise), is designed to offer both mainframe and distributed server technologies in an integrated system. The zEnterprise System consists of three components.[6] First is a System z server. Second is the IBM zEnterprise BladeCenter Extension (zBX).

Top Industries that use IBM System z Mainframe

Top Industries that use IBM System z Mainframe

Looking at IBM System z Mainframe customers by industry, we find that Computer Software (16%) and Information Technology and Services (7%) are the largest segments.

Companies using IBM System z Mainframe - Distribution by industry

Top Countries that use IBM System z Mainframe

Top Countries that use IBM System z Mainframe

60% of IBM System z Mainframe customers are in United States and 6% are in United Kingdom.

IBM System z Mainframe customers by country

Distribution of companies that use IBM System z Mainframe based on company size (Employees)

Distribution of companies that use IBM System z Mainframe based on company size (Employees)
Of all the customers that are using IBM System z Mainframe,21% are small (<50 employees), 35% are medium-sized and 44% are large (>1000 employees).
Companies using IBM System z Mainframe, by size (number of employees)

Distribution of companies that use IBM System z Mainframe based on company size (Revenue)

Distribution of companies that use IBM System z Mainframe based on company size (Revenue)
Of all the customers that are using IBM System z Mainframe, 33% are small (<$50M), 17% are medium-sized and 41% are large (>$1000M).
IBM System z Mainframe clients - distribution by company revenue

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