Pitney Bowes PSI is a company that has developed a national network of pre-sort mail operating centers that utilize a standard operating platform. The company s network hubs are located in more than 30 of the largest United States mail revenue cities and the company is capable of transporting mail between the pre-sort mail centers. Pitney Bowes PSI partners with the United States Postal Service at local, regional and national levels to assure that all mail meets the USPS requirements. In addition to full-service mail processing, the company offers other services, such as mail preparation total quality management, a program designed to help businesses prepare letter mailings that meet or exceed USPS processing quality standards. Pitney Bowes PSI is a provider of office technologies and solutions, which includes a range of mailing and document services.