Enterprise COBOL for z/OS is a compiler suite created by IBM. It supports many of IBM's other systems such as CICS, IMS and DB2, and also features UTF-8 support, XML facilities and support for Java. There is also support for previous IBM compilers including OS/VS COBOL and IBM COBOL for OS/390 & VM.IBM, 'IBM Enterprise COBOL for Z/OS, Version 5 Release 1', https://www-01.ibm.com/support/docview.wss?uid=swg21633234&aid=1