Integrity Payments Systems 1700 E Higgins Rd, Des Plaines, IL60018 Integrity Payment Systems is a credit and debit-card payment processing vendor for businesses. When a person uses a…More credit or debit card at a business, Integrity processes that payment by retrieving the money from the credit account and depositing it into the merchant's account. It offers smooth transaction payment systems including credit card services, payroll services, POS services and expense management. Guiding companies through payment processing options as well as revenue options such as customer reward programs and company gift cards is also available. Its systems are PCI compliant and integrate with QuickBooks.