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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.


Extra FDIC Insurance

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Businesses and individuals that want to earn interest and access high-level FDIC insurance for deposits above $250,000 can do so, all in one place. You make a large deposit and we use the IntraFi® NetworkSM to keep your excess funds safe by placing them into CDs, money markets, or deposit accounts with other network members. 

  • Work with one bank to access multimillion-dollar FDIC insurance coverage
  • Receive one easy-to-read statement summarizing all your accounts
  • Earn a return while keeping all of your deposits safe
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Strength And Safety

When It Matters Most.

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It’s important to keep your deposits protected. The IntraFi® NetworkSM lets you tap into a large network of financial institutions that share resources and insurance. That means more protection for your money—all from a bank you know and trust.

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Local Decisions
No one knows what Mainers need better than Mainers. That’s why we keep our decision-making local—and have for more than 150 years.
The GSB Difference
Team Banking
At GSB, every employee is trained to help every customer find what they need. Every time you come to GSB, you know we're working to give you the best service.
The GSB Difference


Complete this form and we’ll contact you to get the ball rolling. Prefer the phone? Give us a call at (207) 839-4796.

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