Description How's this for alliteration: Payment Processing provides products for processing payments professionally. The company, also known as PPI, does in fact help merchants in the US and Canada process their customers' payments by partnering with various software developers to offer systems that integrate software applications with electronic payment processing functions. PPI products support check payments, credit cards, debit cards, and gift cards. Its services include tech and administrative support and risk monitoring. Founded in 1995, PPI today works with more than 1,000 software companies and more than 40,000 merchants, including restaurants and retailers.