Vendors Investing in VSE
21CS works with active VSE vendors investing in security, storage, resiliency, observability and connectivity.
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Software Vendor
Adaptigent
Integration software company (formerly GT Software) connecting mainframe applications and data to modern platforms.
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Healthcare Software
Altera Health
Healthcare IT company providing electronic health record and clinical software for hospitals and health systems.
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Software Vendor
Broadcom
Global technology company whose Mainframe Software Division provides enterprise software for IBM Z.
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Software Vendor, Consulting & Engineering
BSI (Barnard Software, Inc.)
Developer of TCP/IP networking software for VSE, including the stack behind IPv6/VSE.
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Software Vendor
CSI International
Mainframe software company known for TCP/IP for VSE and connectivity and security tools.
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Software Vendor
H&W Computer Systems
Mainframe software vendor offering productivity, network and systems management tools.
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Software Vendor, IT Services & Software
HCL
Global technology company whose HCLSoftware division develops enterprise software, including IBM Z products.
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Software Vendor
Log-On Software
IBM Z software developer offering Db2 tooling, virtual tape and continued support for former IBM products.
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Software Vendor
MacKinney Systems
Mainframe software vendor offering utilities for z/OS and VSE.
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Mantissa Corporation
Mainframe systems software vendor.
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Software Vendor
Osys Software
Swiss software house behind QPAC, a 4GL batch utility for IBM mainframes that reads, reports on and corrects SAM, VSAM, DL/I and Db2 data, with versions for z/OS and VSE.
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Software Vendor
Phoenix Software International
Mainframe systems software developer known for (E)JES job and output management.
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Software Vendor
Precisely
Data integrity company providing data integration, quality and mainframe data software.
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Software Vendor
Rocket Software
Infrastructure software company with a large IBM Z and mainframe modernization portfolio.
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Software Vendor, Consulting & Engineering
Sine Nomine Associates
Engineering and consulting firm specializing in IBM Z, z/VM and Linux on Z.
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Software Vendor
Software Diversified Services
Mainframe software vendor providing security, network and systems management tools.
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Software Vendor
Syspertec Virtel
Developer of Virtel, which web-enables 3270 mainframe applications.
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Software Vendor
Thigpen Enterprises
VSE software developer whose tools include VSE2PDF.
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Software Vendor
UNICOM Systems
Enterprise software company with a broad mainframe and systems management portfolio.
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Software Vendor
Velocity Software
Performance management software for z/VM and Linux on IBM Z.
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Software Vendor
XPS Software GmbH
German VSE software vendor in the 21CS VSEn ecosystem.