Mercantile Processing Inc. is a locally owned Delaware company. Based in Sussex County, MPI's home office is in Frankford, Del. MPI serves the Delmarva area as a credit card processing broker, payroll solution provider, credit card terminal and ATM reseller and a gift/loyalty card program supplier. Servicing small businesses, restaurants, hotels, and seasonal merchants, Mercantile Processing Inc. also has the ability to broker for state and federal institutions, large business, and cash advance companies. Customer service is most important to MPI. Mercantile Processing Inc. strives to provide local, helpful customer service to all of its customers. Mercantile processing Inc. has also become a part of the local community. MPI is a member of several local BNI groups, chambers of commerces, and serves on the board of the Millsboro Chamber of Commerce. Follow us on Twitter @MPIdelaware.