Katahdin Trust is a locally owned and managed community bank founded in Patten on March 7, 1918. We have more than $800 million in assets and 180 employees. Katahdin Trust has 16 full-service branches throughout northern Maine, greater Bangor and the Portland regions. Katahdin Trust offers individuals and businesses a full menu of products and services. This includes everything from: Savings, Checking Accounts, CDs, Commercial Mortgages, Residential Mortgages, SBA Loans, Business Lines of Credit, and much more. Member FDIC. Equal Housing Lender. .