About Us

First Security Bank is the locally-owned community bank choice for Gallatin, Chouteau, and surrounding counties. Since the first branch opened over 90 years ago on Bozeman's Main Street, First Security has grown to be the market leader and offers the most branch and ATM locations in the area. The bank donates and supports employee volunteerism to over150 organizations each year, and provides financing for local businesses and non-profits.

We're dedicated to providing exceptional service to anyone who walks through our doors, and offering convenient eServices for when you're on the move.

Locations in: Bozeman, Belgrade, Three Forks, Big Sky, West Yellowstone, Fort Benton, and a Loan Production Office in Chester.


Business size

101-500 employees


Commercial presence