Draft:21CS

21CS
21CS
Type	Private
Predecessor	21st Century Software
Founded	1992
Founder	Rebecca Levesque
Headquarters	Morehead City, NC, United States of America
Key people	CEO: Eduardo (Eddy) Ciliendo
Website	21cs.com

Submission declined on 23 October 2026 by Quid Est Squid (talk).

This draft's references do not show that the subject meets Wikipedia's criteria for inclusion for organizations and companies. The draft requires multiple published secondary sources that:

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Declined by Quid Est Squid 10 days ago. Last edited by Sumanuil 10 days ago. Reviewer: Inform author.

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Comment: In accordance with the Wikimedia Foundation's Terms of Use, I disclose that I have been paid by my employer for my contributions to this article. JoolsSS (talk) 05:00, 23 October 2026 (UTC)

21CS is a mainframe software company, founded in 1992 and headquartered in Morehead City, NC. The company specializes in enterprise solutions in areas such as performance and capacity planning, data protection and resiliency, and data migration, primarily focused on the IBM z/OS operating system. The company also develops the VSEn operating system, the successor of z/VSE. 21CS is a long-standing business partner of IBM and the only one that develops an operating system^[1] for IBM Z.

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References

↑ "21CS". www.ibm.com. 2025-06-06. Retrieved 2026-10-23.

[1] "21CS". www.ibm.com. 2025-06-06. Retrieved 2026-10-23.

[1]