MPI is a locally owned Delaware company. Based in Sussex County, MPI's home office is in Fenwick Island, DE. 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.
Mercantile Processing Inc. (MPI) is expanding our Customer Service Team! Applicants are encouraged to send cover letter and resu…
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