John S. Mengucci is a businessperson who has been at the head of 12 different companies and presently holds the position of President, Chief Executive Officer & Director at CACI International, Inc. and Chief Executive Officer at Six3 Systems, Inc., Chief Executive Officer of CACI, Inc. - FEDERAL, President & Chief Operating Officer for CACI-Athena LLC, President & Chief Operating Officer for Six3 Intelligence Solutions LLC, President & Chief Operating Officer of Six3 Advanced Systems, Inc., President & Chief Operating Officer at CACI Enterprise Solutions, Inc., President & Chief Operating Officer for LTC Engineering Associates, Inc., President for CACI-CMS Information Systems LLC and President at CACI NSS LLC (which are all subsidiaries of CACI International, Inc.). John S. Mengucci is also on the board of TechAmerica Midwest. In the past he held the position of President for IDL Solutions, Inc., President & Chief Operating Officer at CACI Dynamic Systems, Inc., President-Civil Products at Lockheed Martin Information Systems & Global Solutions and Director-Electronic Systems Radar Product Support at Martin Marietta Corp. Mr. Mengucci received an undergraduate degree from Clarkson College and an MBA from Syracuse University.