First Interstate Banc System

First Interstate BancSystem, a financial holding company, offers a broad range of banking products and services such as deposits, loans, wealth management, and business services through its subsidiary, First Interstate Bank. Established in 1968, the company upholds the vision and mission of delivering quality service and maintaining long-term relationships to help its clients succeed financially. It operates over 150 banking offices across Idaho, Montana, Oregon, South Dakota, Washington, and Wyoming.