Banks
- Androscoggin Savings Bank
- Bangor Savings Bank
- Bar Harbor Bank & Trust
- Bar Harbor Savings and Loan Association
- Bath Savings Institution
- Franklin Savings Bank
- Gorham Savings Bank
- Katahdin Trust Company
- Kennebec Savings Bank
- Kennebunk Savings Bank
- Machias Savings Bank
- Maine Community Bank
- Northeast Bank
- Norway Savings Bank
- Partners Bank of New England
- Saco & Biddeford Savings Institution
- Skowhegan Savings Bank
Credit Unions
- Coast Line Credit Union
- Community Credit Union
- Connected Credit Union
- cPort Credit Union
- Downeast Credit Union
- Evergreen Credit Union
- Five County Credit Union
- Maine State Credit Union
- Peopleschoice Credit Union
- Sabattus Regional Credit Union
- Saco Valley Credit Union
- University Credit Union
Non-Depository Trust Companies & Merchant Banks
- Clearstead Trust LLC
- Eaton Vance Trust Company
- Global Trust Company
- H. M. Payson & Co.
- Nixon Peabody Trust Company, LLC, Formerly Known as Watch Point Trust Company
- Pentegra Trust Company
- Plimoth Trust Company
- Portland Trust Company
- Spinnaker Trust
- The Maine Merchant Bank, LLC
Please refer to the comprehensive list of institutions operating in Maine to identify their regulator if the financial institution is not listed above.