Who is 21CS?  
August 1, 2023

The rebranding of 21CS reflects a new chapter in the company’s history. And while our commitment to provide reliable products and exceptional customer service remains the same, we are pushing forward to the future of innovation and stepping beyond the 21st century.  

Since being founded nearly 30 years ago, 21CS has delivered innovative solutions essential for mission-critical operations across the business and IT spectrum.  The z/OS operating system and IBM mainframe hardware continues to be the platform of choice for the largest business enterprises in the world. As a trusted IBM partner, 21CS develops and supports software in the areas of system performance, storage management, systems resiliency, and cloud data management. In the mid-range segment, 21CS owns the VSEn operating system and is driven to redefine the future of this OS.    


Nick Pachnos, CEO 21CS

21CS is a truly global company with significant development and senior management staff in the US, Australia, and Europe. We continue to hire in each of our global locations and are excited to announce the recent opening of our development lab in Greece.  Not only do we recognize the benefits of having a globally and culturally diverse workforce, we also prioritize having one that reflects a vast array of skills.  We value our senior staff while being committed to hiring recent university graduates as well as recent career changers.


Take a look around at our redesigned website and learn more about 21CS. Feel free to message me with any questions you may have.  We would love to hear from you.   

Nick Pachnos
CEO, 21CS  




In this video we illustrate how to use IBM Performance and Capacity Analytics, an #AIOps on #IBMZ solution, to create custom #Cognos reports and modify the SQL.

21CS Releases Enhanced Version of IBM Streams

21CS Releases Enhanced Version of IBM Streams

21CS announces the release of 21CS Streams, formerly IBM Streams, a cutting-edge event stream processing (ESP) platform used to ingest and analyze vast amounts of real-time data with ultra-low-latency.

21CS is a leader in the development of software solutions that are designed to create value across the business and IT spectrum.




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