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Our Yarmouth branch will close at noon on Friday 7/19 and remain closed on Saturday 7/20 for the Yarmouth Clam Festival. The drive-up video teller is available normal hours. We apologize for the inconvenience. See nearby locations.


Merchant Services

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Merchant services are a great way to streamline payments and avoid cash flow disruption. Customers love our low rates, local service, and the latest technology. Discover the difference local merchant services can make for your business.

“Switching our merchant processing to GSB saved us $12,000 a year to reinvest back into growing our business—plus, we value having a local partner that’s accessible and nearby whenever we need them.” – Geraldine Ollila, Maine Laser & Aesthetics

Stars and Stripes staff smiling at each other looking over the bar.

Switch for the Rates

Stay for the Service

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Multiple payments icon

Accept Multiple Payment Types

All major credit cards, debit cards (signature and/or PIN based), Electronic Benefit Transfer (EBT) payments and purchasing cards for corporate/government organizations.

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Blue hand holding phone icon

Ecommerce & Mobile Solutions

Accept payments through your website with shopping cart technology, or via your mobile device or tablet.

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Cards Icon

Gift & Loyalty Card Programs

Gift and loyalty cards are a less expensive, more effective alternative to traditional advertising.

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Tech You Can Count On Icon

Tech You Can Count On

View reports and statements online with ease. Access 24/7 technical support when you need it. QuickBooks® integration also available with some systems.


Get a complimentary statement review by completing this form, or call (207) 221-8460.

GSB Cash Management Team