Payments made personal, service made simple.

Get simple, reliable payment solutions with real people ready to help, so your business runs smoothly every day.

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Mercantile Processing Inc. was founded in 2006 in Sussex County, Delaware with a simple goal: make payments easier for the businesses we serve.

We built MPI around a different kind of experience, one where you’re not pushed into a one-size-fits-all solution. Instead, we take the time to understand your business and build around what you actually need, so you’re only paying for what makes sense.

We often describe ourselves as “local payment people,” but for us, that goes beyond location. It’s about how we show up. Real people who answer the phone, respond quickly, and provide support that feels personal, whether you’re down the street, across the country, or even operating internationally.

Now in our 20th year, MPI works with businesses, partners with financial institutions, and delivers payment solutions built around how businesses actually operate.

We’re here to make payments feel straightforward again, with a team you can reach, solutions that fit, and support that actually shows up when you need it.

The People Behind MPI

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woman wearing yellow long-sleeved dress under white clouds and blue sky during daytime

Man if i had the space to write a book I would do it solely on Casey and her amazing customer service and family like traits. I have a very well known food truck business Bubs Grub's and without her help I would still be only a cash business. Thank you for everything you do to help my business grow 🙏

Gary S.

We’ve been using MPI for over a year at Main Street Movies 5, Milford Movies 9, and Westown Movies, and we’ve had a great experience. The product works exceptionally well, the customer service team is always responsive and helpful and our sales rep, Emily, has been fantastic to work with!

Sven J.