IBM System z Mainframe Customer List

Do you sell to companies who use IBM System z Mainframe? Do you have a product that works with IBM System z Mainframe? Do you offer IBM System z Mainframe consulting and implementation services? If you do, then you’ll love our actively-managed database of IBM System z Mainframe users.

15,643+ Companies
  • Company Name
  • Website
  • Phone Number
  • Mailing Address
  • Industry
  • Employee Range
Last Updated :

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Anna Jensen Director of Marketing, DigitalShadows


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Sample Records of the Companies that use IBM System z Mainframe :

Company Name Industry Country Company Size
State Street Corporation Financial Services United States 39.1k to 39.9k
Nationwide Building Society Financial Services United Kingdom 11.2k to 11.9k
Swiss Re Insurance Switzerland 13k to 13.9k
Bank of Communications Banking China 11.9k to 11.9k
China Everbright Bank Banking China 12.1k to 12.9k
China Merchants Bank Banking China 11.9k to 11.9k
DBS Bank Banking Singapore 25k to 25.9k
Standard Bank Group Banking South Africa 49k to 49.9k
Banco do Brasil Banking Brazil 26.7k to 26.9k
Canadian Imperial Bank of Commerce Banking Canada 46.3k to 46.9k
Royal Bank of Canada Banking Canada 31.9k to 31.9k
Toronto-Dominion Bank Banking Canada 12.1k to 12.9k
Banco Santander Banking Spain 15.5k to 15.9k

Get a targeted slice of IBM System z Mainframe customers for your campaigns

How do we build this data

At Ready, we use state-of-the-art software and context-driven human research to identify and track companies using IBM System z Mainframe across global markets. We use a multi-step process to validate and weed out false positives and refresh our data every 90 days.

How to customize this data for your needs:

You can requested a customized slice of our full IBM System z Mainframe customers database by sharing filters for geography, industry, size and other specific needs you may have. We also identify specific decision makers based on titles & roles.

Here’s why our data is better

We put freshness & accuracy ahead of everything here at ReadyContacts and it shows in our data that is software-powered & human-curated.

  • Freshness Our data is always freshly validated prior to delivery.
  • Accuracy Our multi-step software & human review process ensures the highest accuracy.
  • Targeting We are able to find highly specific target audiences for your needs.
  • Comprehensive We find every prospect out there for your campaign specification.
  • Intelligence Our datasets come backed with detailed & actionable intelligence.
  • Guarantee We promise 90% accuracy across all datasets & stand by it.

IBM System z Mainframe Customers Coverage

We track IBM System z Mainframe customer insights globally and across verticals. Here’s a quick snapshot of the coverage we have for list of companies who use IBM System z Mainframe and where they belong.

Request a sample of IBM System z Mainframe Customers for these regions:

IBM System z Mainframe customers by Countries

IBM System z Mainframe customers by US States

IBM System z Mainframe customers by Metro Areas

How to get a list of IBM System z Mainframe customers from Ready


Share your spec &
request a sample

Submit your specifications for a IBM System z Mainframe customer list based on your sales & marketing campaign needs.

Get a personalized
sample & counts

Ready creates a freshly validated sample dataset of IBM System z Mainframe customers with contacts & shares the overall counts for your specification.

Finalize specs &
purchase dataset

Once you review the sample, you can finalize any tweaks to the IBM System z Mainframe customers data specifications & purchase the full set of records or a part of them.

IBM System z Mainframe Customers List: FAQs

What is IBM System z mainframe?

The IBM System z mainframe is a high-performance, scalable computing platform designed for mission-critical workloads. It offers industry-leading security, reliability and availability while handling massive transaction volumes efficiently. System z runs many core business applications for enterprises across banking, insurance, retail and government sectors.

How many customers does IBM System z mainframe have?

IBM does not disclose exact customer numbers, but System z adoption is widespread among major enterprises and government agencies worldwide. Over 75% of Fortune 500 companies use System z for core business functions. Large banks, insurers, retailers and public sector organizations rely on System z for secure, 24x7 operations.

Who uses IBM System z mainframe?

Leading global enterprises across banking, insurance, retail, logistics, manufacturing and government sectors use System z mainframes. Major banks like Citi, Wells Fargo, and BNP Paribas run core banking apps on System z. Top retailers like Walmart use it for ERP. And government agencies like US Social Security Administration rely on it for critical taxpayer services.

Which companies use IBM System z mainframe?

Many leading Fortune 500 companies across banking, insurance, telecom, logistics, manufacturing and retail industries use IBM System z mainframes. These include 9 of the top 10 banks, 8 of the top 10 insurers, 7 of the top 10 retailers, and 8 out of 10 global airlines.

What industries is IBM System z mainframe most popular in?

IBM System z has strong presence across banking, insurance, government, transportation, manufacturing, retail and healthcare sectors. Over 90% of top banks rely on System z for core banking operations. Top insurers use it for policy admin systems. And major retailers use it for ERP and supply chain systems.

What are some popular alternatives to IBM System z mainframe?

Some alternatives to IBM System z mainframes include x86 servers, distributed computing platforms like IBM Power Systems and Oracle Exadata , and public cloud platforms like AWS , Azure and Google Cloud. But most large enterprises use a mix of System z for mission-critical workloads and other platforms.

What is to be expected from Ready's IBM System z mainframe client list?

Ready's IBM System z client list will include Fortune 500 companies and large enterprises across banking, insurance, retail, healthcare, logistics, telecom, and government sectors. The list will have key decision makers like CTOs, CIOs, IT infrastructure heads who use System z for mission-critical applications.