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All GSB locations will be closed on Monday, May 29 in observance of Memorial Day. Normal business hours will resume on Tuesday, May 30. Online and mobile banking are available to manage your accounts and deposits can be made at any GSB ATM.



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Every business is unique—and so is every loan. We offer a variety of business lending options, and we can help you figure out which one is best for you. Only one thing stays the same no matter what: our top-notch service.

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The Funds You Need

When You Need Them.

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We get it: When you apply for a loan, you need to feel confident the process will be swift and secure. Another thing we get? Maine. We’re based here, and we can put our knowledge of the business landscape to work for you.

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Customer Owned
We made the decision 150 years ago to put our customers first—and we’ve never looked back. We did it by becoming a mutual savings bank. Our customers, our owners.
The GSB Difference
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At its best, banking is about relationships. It’s about coming together to build something we can all believe in. We believe banking can be a force for good. Let us show you how.
The GSB Difference