Driving the Future of Mainframe Innovation

Why 21CS
Products
- Our Products
  - SENTINELⁿ
    Comprehensive change management tool for z/OS
  - STRATUSⁿ
    Cloud object storage for z/OS | 21CS
  - Tape/Assist®
    Seamlessly migrates z/OS tape data
  - TRANSVERSEⁿ
    End-to-end, non-disruptive z/OS data migration
  - VECTORⁿ
    Modern, simplified dataset transfers
  - VSEⁿ
    Enhanced VSE experience compatible with previous versions
- What's Next
  - VERIFIⁿ
    Modern, adaptable JCL checker
  - OPTIMAⁿ
    The next generation of mainframe performance analytics
- Trusted IBM Partner
  - IBM Product Portfolio
- 21CS Partners
  - Global Partnerships
AI for QA with Python and ZOAU for the Seasoned Professional

A 45-year z/OS veteran puts generative AI to work with Python and ZOAU, automating a QA task across ...
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Solutions
- Our Solutions
Talk to a Mainframe Expert

Partner with experts who understand mainframe challenges and opportunities.
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Insights

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AI for QA with Python and ZOAU for the Seasoned Professional
I've recently started to use AI in my day-to-day work. Initially being a 'seasoned professional' - or just someone who has been working with mainframes for 45 years - I thought I'd skip the whole AI...

Mainframe Automation
July 15, 2026
21CS Establishes Strategic Partnership with TES Enterprise Solutions
MOREHEAD CITY, NC (July 14, 2026) - 21st Century Software Technologies, Inc. (21CS) announces a new strategic reseller partnership with TES Enterprise Solutions. Based in the United Kingdom, TES is...

Global Partnership
July 14, 2026
Rethinking Performance Management on IBM Z in the Age of AI
By Josh Stiles, Product Lead, 21st Century Software

Real Time Performance & Cost Control
July 2, 2026
21CS Announces OPTIMAn
The IBM Z Intelligence Gap Is Closing For decades, mainframe teams have been trapped in the same cycle: pull reports, wait for answers, make decisions on data that's already aging. The platform is...

Mainframe AI Integration
July 1, 2026
21CS Establishes Strategic Partnership with Interskill Learning
MOREHEAD CITY, NC (April 8th, 2026) - 21st Century Software Technologies, Inc. (21CS) announces a new strategic partnership with Interskill Learning, a global leader in IBM Z mainframe workforce...

News
April 8, 2026
21CS Earns 2026 Great Place To Work® Certification
MOREHEAD CITY, NC (March 31st, 2026) - 21st Century Software Technologies, Inc. (21CS) has been Certified™ by Great Place To Work® in the U.S., a recognition based entirely on feedback from current...

News
March 31, 2026
21CS Establishes Strategic Partnership with Eccox in Brazil
MOREHEAD CITY, NC (March 16th, 2026) - 21st Century Software Technologies, Inc. (21CS) announces a new strategic partnership with Eccox Technology. Based in Brazil, Eccox is a pioneer in developing...

Global Partnership
March 16, 2026
21CS Adds Industry Veterans as Directors of Global Strategy
MOREHEAD CITY, NC (February 19th, 2026) - 21st Century Software Technologies, Inc. (21CS) is pleased to announce the addition of industry veterans Dusty Rivers and Leonard (Len) Santalucia as ...

Mainframe Talent
February 19, 2026

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