IBM z/OS Operating System

IBM z/OS Operating System is a 64-bit enterprise operating system designed for IBM mainframes. It is an upgraded version of OS/390 geared for scalability, secure high-performance functionality, and running mission-critical applications. The operating system supports Web- and Java-based applications. 

COMPANIES WE TRACK USING IBM z/OS Operating System
5,557
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Companies Currently Using IBM z/OS Operating System

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Company NameWebsiteHQ AddressCityStateZipCountryTop Level IndustrySub Level IndustryEmployeesRevenue (USD)PhoneLast Verified
JPMorgan Chase jpmorganchase.com 270 Park Ave New York NY 10017 US Finance Banking Above 10,000 Over $1,000,000,000 (212) 270-6000 2 months ago
Marriott International marriott.com 10400 Fernwood Rd Bethesda MD 20817 US Hospitality Lodging & Resorts Above 10,000 Over $1,000,000,000 (301) 380-3000 2 months ago
Vantiv vantiv.com 8500 Governor's Hill Dr Township of Symmes OH 45249 US Finance Credit Cards & Transaction Processing From 1,000 to 4,999 Over $1,000,000,000 (513) 900-5250 2 months ago
Wells Fargo wellsfargo.com 420 Montgomery St San Francisco CA 94163 US Finance Banking Above 10,000 Over $1,000,000,000 (866) 878-5865 2 months ago
TSYS tsys.com 1 TSYS Way Columbus GA 31901 US Finance Credit Cards & Transaction Processing Above 10,000 Over $1,000,000,000 (706) 644-6081 2 months ago
First Data firstdata.com 5565 Glenridge Connector N.E. Atlanta GA 30342 US Finance Credit Cards & Transaction Processing Above 10,000 Over $1,000,000,000 (404) 890-2000 2 months ago

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