Finally: Brainfuck is ready for the mainframe/enterprise
After a long hack-session I finally got a Brainfuck interpreter written in COBOL working (https://www.vanheusden.com/misc/blog/2016-05-19_brainfuck_cobol_intp.php ). So you can finally run your Brainfuck programs on your COBOL enabled mainframe! (e.g. ibm esa/390, tandem nonstop, etc)
If you don't want an interpreted code, you can use this program https://www.vanheusden.com/misc/blog/2016-05-19_brainfuck_cobol_compiler.php instead which translates/compiles the Brainfuck code to COBOL code.