MPI is a locally owned Delaware company. Based in Sussex County, MPI's headquarters are located in Millville. Mercantile Processing Inc. services small businesses, restaurants, hotels, and seasonal merchants. MPI also has the ability to broker for state and federal institutions, large business, and cash advance companies.
Read our merchant tips blog for helpful tips and advice about credit card processing.
The end of the year is quickly approaching and now is the easiest time to switch your payroll. Let MPI allow you to start off 20…
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