SIS means System Integration And Support

        What does SIS stand for? Abbreviation of SIS, definition of SIS, Explanation of SIS, Full forms of short form SIS.

         We are providing world largest and most comprehensive acronyms, abbreviations directory and search engine for acronyms on the Internet. Abbreviations Finder contains more than 7 million abbreviations and acronyms. You can also search for more than 740,000 general Comprehensive words.