AITP has existed under several names since it's inception in 1951. The Association of Information Technology Professionals (AITP) was preceded by the Data Processing Management Association (DPMA) which came from the original NMAA. On December 26, 1951, after a constitutional convention was held in Chicago, the State of Illinois granted a charter and the National Machine Accountants Association (NMAA) was founded, based on chapters of the Machine Accountants Association, including the Philadelphia Chapter.

AITP's main goal has always been to provide a forum for members to exchange information with others in their field and to promote continuing education for IT professionals.

The Philadelphia chapter is one of the oldest chapters on the East Coast. It was one of the original NMAA chapters.

Members represent most of the professional jobs in the industry from IT Management, to Project Managers, to Consultants, to IT Staffing Professionals and IT Sales representatives. They follow the AITP Ethics and Code of Conduct and take pride in their industry.