Pitney Bowes PSI is a national mail-processing organization with operating centers in 25 cities. Its most important service is using the latest technology to perform the detail-intensive functions of first-class and standard-class presorting of mail the service that makes the most difference in qualifying for substantial postage-rate discounts. Pitney Bowes PSI maintains a close consultative relationship with the United States Postal Service at local, regional and national levels to ensure that customers take maximum advantage of postal savings and efficiencies. It also sees that technological systems are continuously updated to meet every requirement of the ever-changing postal environment. In addition to the vital function of presorting mail, all its offices provide specialized and complementary mail-related services, including FASTforward, metering and transportation services. Pitney Bowes PSI maintains an office in Stafford, Texas.