Is Dassault systems CATIA available for Mac?

I see nothing to indicate that they have or plan a version for Mac OS X. It's possible the Windows version would work on a Mac via Boot Camp or one of the virtualization solutions, but Dassault won't certify it and probably won't support it, and given the list of supported configurations I have doubts as to whether it would run on an iMac. You can try asking in the Boot Camp forum here and see if anyone here has had experience with that software, or see if you can find a forum for CATIA users and ask there.

Regards.