The main purpose of this study was to demonstrate the most common characteristics of the small and medium system integration companies in performing IT projects. In this study, 388 auditing reports on the 194 IT projects which were carried out by the small and medium size manufacturers from 2006 to 2009 were employed and surveyed. This survey revealed that the schedule management was the most neglected item in the project management area, the test planning and action was the most neglected item in the development and coding area, and the manual preparation for users and operators was the most neglected item in the operation and maintenance area. Consequently these three most neglected items were considered as the most common characteristics of the small and medium system integration companies in performing IT projects.