First Security Bank is a full-service community bank offering residents throughout Missoula, Sanders, and Ravalli counties th ... e best in personal and business banking services. Our Mission: We are community inspired and pride ourselves on creating opportunities for our customers and employees to succeed. Our Core Values: Integrity, Service and Success. A division of The Glacier Bancorp Family of Banks, we offer a true community banking experience backed by the strength of a nationally recognized and awarded financial institution. Our performance sets us apart, and when we say we’re dedicated to our communities, we walk the talk. We believe in giving back to make our neighborhoods the very best places to live and work, and are proud to serve area non-profit organizations. Visit us at any of our twelve area branch locations and see for yourself—business as usual is different here! Division of Glacier Bank. Member FDIC. Equal Housing Lender. Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities. read more