First Interstate BancSystem, Inc. operates as the bank holding company for First Interstate Bank that provides commercial and consumer banking services. Its deposit products include checking, savings, time, and demand deposits; and repurchase agreements primarily for commercial and municipal depositors. The company’s loan portfolio consists of real estate loans, including commercial real estate, construction, residential, agricultural, and other real estate loans; consumer loans; commercial loans; agricultural loans; and other loans, including fixed and variable rate loans. It also provides a range of trust, employee benefit, investment management, insurance, agency, and custodial services to individuals, businesses, and nonprofit organizations, which include the administration of estates and personal trusts; management of investment accounts for individuals, employee benefit plans, and charitable foundations; and insurance planning. In addition, the company offers Internet and mobile banking services. First Interstate BancSystem, Inc. serves individuals, businesses, municipalities, and other entities in various industries, including energy, tourism, agriculture, healthcare, professional services, education, governmental services, construction, mining, retail, and wholesale trade. As of March 26, 2015, the company operated 79 banking offices in 41 communities located in Montana, Wyoming, and western South Dakota. First Interstate BancSystem, Inc. was incorporated in 1971 and is headquartered in Billings, Montana.